add

backend/README.md

@@ -0,0 +1,119 @@
+curl -X POST "http://127.0.0.1:20000/user/register" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "account": "test",
+    "password": "test12341234"
+  }'
+---
+# 创建美国
+curl -X POST "http://127.0.0.1:20000/country/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "美国", "code": "US"}'
+
+# 创建中国
+curl -X POST "http://127.0.0.1:20000/country/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "中国", "code": "CN"}'
+
+# 创建日本
+curl -X POST "http://127.0.0.1:20000/country/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "日本", "code": "JP"}'
+
+# 创建香港
+curl -X POST "http://127.0.0.1:20000/country/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "香港", "code": "HK"}'
+---
+# 创建美国
+curl -X POST "http://127.0.0.1:20000/currency/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "美元", "code": "USD"}'
+
+# 创建中国
+curl -X POST "http://127.0.0.1:20000/currency/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "人民币", "code": "CNY"}'
+
+# 创建日本
+curl -X POST "http://127.0.0.1:20000/currency/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "日元", "code": "JPY"}'
+
+# 创建香港
+curl -X POST "http://127.0.0.1:20000/currency/create" \
+  -H "Content-Type: application/json" \
+  -d '{"name": "港币", "code": "HKD"}'
+---
+# 创建郑州商品交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "郑州商品交易所",
+    "short_name": "郑商所",
+    "code": "CZCE"
+  }'
+
+# 创建上海证券交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "上海证券交易所",
+    "short_name": "上交所",
+    "code": "SSE"
+  }'
+
+# 创建深圳证券交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "深圳证券交易所",
+    "short_name": "深交所",
+    "code": "SZSE"
+  }'
+
+# 创建上海期货交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "上海期货交易所",
+    "short_name": "上期所",
+    "code": "SHFE"
+  }'
+
+# 创建中国金融期货交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "中国金融期货交易所",
+    "short_name": "中金所",
+    "code": "CFFEX"
+  }'
+
+  # 创建大连商品期货交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "大连商品交易所",
+    "short_name": "大商所",
+    "code": "DCE"
+  }'
+
+# 创建广州期货交易所
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "广州期货交易所",
+    "short_name": "广期所",
+    "code": "GFEX"
+  }'
+
+# 创建上海国际能源交易中心
+curl -X POST http://127.0.0.1:20000/exchange/create \
+  -H "Content-Type: application/json" \
+  -d '{
+    "name": "上海国际能源交易中心",
+    "short_name": "上期能源",
+    "code": "INE"
+  }'
+---

backend/chat.md

@@ -0,0 +1,12 @@
+{
+    "biz":“新增国家“,
+    "data": [
+        {
+            "id": "",
+            "name": "",
+            "code": "",
+            "flag": "",
+        }
+    ],
+}
+---

backend/prompt.md

@@ -0,0 +1,126 @@
+---
+分析这个项目，在 create.go  中完成以下需求：
+
+1、接收 name，code 两个参数。
+2、确认提交的 name，code 两个参数不能为空，如果有空，则返回提示。
+3、第二步通过后，在 country 表中，通过: "INSERT INTO country DEFAULT VALUES RETURNING id" 获得ID。
+4、通过 3 中的 id，开启事务保存到 name 和 code 的表中。
+---
+分析这个项目，在 delete.go 中完成以下需求：
+
+1、接收 country_id 参数。
+2、确认提交的 country_id 参数不能为空，如果有空，则返回提示。
+3、开启事务处理以下逻辑：
+3.1、把 country 中，country.id==req.country_id 的 deleted 字段更新为true。
+3.2、把 name 中，name.country_id==req.country_id 的 deleted 字段更新为true。
+3.3、把 code code.country_id==req.country_id 的 deleted 字段更新为true。
+---
+分析这个项目，在 update.go 中完成以下需求：
+
+1、接收 country_id,name，code 参数。
+2、确认提交的 country_id 参数有不能为空，如果为空，则返回提示。
+3、确认提交的 name，code 两个参数，必须有一个不能为空，如果都为空，则返回提示。
+4、如果 name 不为空，开启事务保存到 name 中。
+5、如果 code 不为空，开启事务保存到 code 中。
+6、如果 name，code 都不为空，开启事务保存到 name，code 中。
+---
+分析这个项目，在 read.go 中完成以下需求：
+
+1、接收 country_id，name，code，page，page_size 参数。
+2、确认提交的 country_id，name，code 必须有一个不能为空，如果都为空，则返回提示。
+3、确认提交的 page，page_size, 如果为空，则 page 默认为 1，page_size 默认为20。
+3、根据参数去 country_info_view 中查找数据，并做分页查询。
+4、将查找的数据分页返回。
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_variety，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+variety_id UUID NOT NULL,
+variety_name VARCHAR NOT NULL,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_direction，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+direction VARCHAR NOT NULL,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_open_price，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+open_price NUMERIC(10,2) NOT NULL CHECK (price >= 0.00) DEFAULT 0.00,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_open_fee，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+open_fee NUMERIC(10,2) NOT NULL CHECK (price >= 0.00) DEFAULT 0.00,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_close_date，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+trade_id UUID NOT NULL,
+year INT NOT NULL DEFAULT 0,
+month INT NOT NULL DEFAULT 0,
+day INT NOT NULL DEFAULT 0,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_close_price，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+close_price NUMERIC(10,2) NOT NULL CHECK (price >= 0.00) DEFAULT 0.00,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，完善trade_info_view视图逻辑，加入close_date和close_price信息。
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_close_fee，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+close_fee NUMERIC(10,2) NOT NULL CHECK (close_fee >= 0.00) DEFAULT 0.00,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，完善trade_info_view视图逻辑，加入trade_close_fee信息。
+---
+读取./sql/08_trade.sql，然后多加一个子表，子表名叫trade_profit，子表逻辑字段为:
+id UUID DEFAULT gen_random_uuid() PRIMARY KEY，
+trade_id UUID NOT NULL,
+variety_tick NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+variety_tick_price NUMERIC(12,6) NOT NULL CHECK (variety_tick_price >= 0.00) DEFAULT 0.00,
+win_tick NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+win_tick_price NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+fee_cost NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+trade_win NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+deleted BOOLEAN NOT NULL DEFAULT FALSE,
+created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+---
+读取./sql/08_trade.sql，完善trade_info_view视图逻辑，加入trade_profit信息。
+---
+1、看一下./sql/07_variety.sql的内容，并记住这些内容。
+2、打开./src/logic4variety/create.go，并维持风格不变的前提下，将业务调整为1中的信息。
+---
+1、看一下./sql/07_variety.sql的内容，并记住这些内容。
+2、打开./src/logic4variety/delete.go，并维持风格不变的前提下，将业务调整为1中的信息。
+---
+1、看一下和了解./sql/07_variety.sql的内容， 然后帮忙再视图中加入exchange_name的信息。
+---
+1、看一下./sql/07_variety.sql的内容，并记住这些内容。
+2、打开./src/logic4variety/read.go，并维持风格不变的前提下，将业务调整为1中的信息。
+---
+1、看一下./sql/07_variety.sql的内容，并记住这些内容。
+2、打开./src/logic4variety/update.go，并维持风格不变的前提下，将业务调整为1中的信息。
+---

backend/sql/03_user.sql

@@ -1,28 +1,41 @@
--- 切换到目标数据库
+-- =========================================================
-\c postgres;
+-- user.sql 👤
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
 
+-- 1️⃣ 开始 🚀
 DO $$
 BEGIN
+    RAISE NOTICE '🚀============ user 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- user 主表（关键字，双引号包裹）
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'user') THEN
-        CREATE TABLE "user" (  -- user是关键字，用双引号包裹
+        CREATE TABLE "user" (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
         CREATE TRIGGER update_user_updated_at
-        BEFORE UPDATE ON "user"
+            BEFORE UPDATE ON "user"
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣✅ user 主表已创建';
-        
-        RAISE NOTICE 'created user table and trigger';
     ELSE
-        RAISE NOTICE 'user table already exists';
+        RAISE NOTICE '1️⃣⏩ user 主表已存在，跳过';
     END IF;
 
+    -- user_account
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'user_account') THEN
         CREATE TABLE user_account (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             user_id UUID NOT NULL,
             account VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
@@ -30,18 +43,17 @@ BEGIN
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
         CREATE TRIGGER update_user_account_updated_at
-        BEFORE UPDATE ON "user_account"
+            BEFORE UPDATE ON user_account
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ user_account 子表已创建';
-        
-        RAISE NOTICE 'created user_account table and trigger';
     ELSE
-        RAISE NOTICE 'user_account table already exists';
+        RAISE NOTICE '2️⃣⏩ user_account 子表已存在，跳过';
     END IF;
 
+    -- user_password
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'user_password') THEN
         CREATE TABLE user_password (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             user_id UUID NOT NULL,
             password VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
@@ -49,49 +61,56 @@ BEGIN
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
         CREATE TRIGGER update_user_password_updated_at
-        BEFORE UPDATE ON "user_password"
+            BEFORE UPDATE ON user_password
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ user_password 子表已创建';
-        
-        RAISE NOTICE 'created user_password table and trigger';
     ELSE
-        RAISE NOTICE 'user_password table already exists';
+        RAISE NOTICE '3️⃣⏩ user_password 子表已存在，跳过';
     END IF;
 END $$;
 
+-- 4️⃣ 视图 ------------------------------------
 DO $$
 DECLARE
     view_exists BOOLEAN;
 BEGIN
-    -- 检查视图是否已存在
     SELECT EXISTS (
         SELECT 1 FROM information_schema.views 
         WHERE table_name = 'user_info_view'
     ) INTO view_exists;
 
-    -- 创建或更新视图
-    CREATE OR REPLACE VIEW user_info_view AS
-    SELECT 
-        u.id AS user_id,
-        ua.account AS user_account,
-        up.password AS user_password,
-        u.deleted AS deleted
-    FROM 
-        "user" u
-    JOIN 
-        user_account ua ON u.id = ua.user_id
-    JOIN 
-        user_password up ON u.id = up.user_id
-    WHERE
-        u.deleted = FALSE;
-
-    -- 根据视图是否已存在输出不同提示
     IF view_exists THEN
-        RAISE NOTICE '视图 user_info_view 已更新';
+        DROP VIEW user_info_view;
-    ELSE
+        RAISE NOTICE '4️⃣♻️ 已删除旧视图 user_info_view';
-        RAISE NOTICE '视图 user_info_view 已创建';
     END IF;
+
+    CREATE OR REPLACE VIEW user_info_view AS
+    SELECT
+        u.id AS user_id,
+        ua.account,
+        up.password
+    FROM "user" u
+    JOIN user_account ua ON u.id = ua.user_id AND ua.deleted = FALSE
+    JOIN user_password up ON u.id = up.user_id AND up.deleted = FALSE
+    WHERE u.deleted = FALSE;
+
+    RAISE NOTICE '4️⃣✅ user_info_view 已创建/更新';
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
+        RAISE NOTICE '4️⃣❌ 处理视图时发生错误: %', SQLERRM;
 END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_user_account_user_id_deleted ON user_account(user_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_user_password_user_id_deleted ON user_password(user_id, deleted);
+
+DO $$
+BEGIN
+    RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
+END $$;
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ user 部署完成 ============🎉';
+END $$;

backend/sql/04_country.sql

@@ -1,97 +1,137 @@
--- 切换到目标数据库
+-- =========================================================
-\c postgres;
+-- country.sql 🌍
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
 
+-- 1️⃣ 开始 🚀
 DO $$
 BEGIN
+    RAISE NOTICE '🚀============ country 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- country 主表
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country') THEN
-        CREATE TABLE country ( 
+        CREATE TABLE country (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
         CREATE TRIGGER update_country_updated_at
-        BEFORE UPDATE ON "country"
+            BEFORE UPDATE ON country
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣✅ country 主表已创建';
-        
-        RAISE NOTICE 'created country table and trigger';
     ELSE
-        RAISE NOTICE 'country table already exists';
+        RAISE NOTICE '1️⃣⏩ country 主表已存在，跳过';
     END IF;
 
+    -- country_name
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_name') THEN
         CREATE TABLE country_name (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             country_id UUID NOT NULL,
             name VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
-        CREATE TRIGGER update_name_updated_at
+        CREATE TRIGGER update_country_name_updated_at
-        BEFORE UPDATE ON "country_name"
+            BEFORE UPDATE ON country_name
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ country_name 子表已创建';
-        
-        RAISE NOTICE 'created country_name table and trigger';
     ELSE
-        RAISE NOTICE 'country_name table already exists';
+        RAISE NOTICE '2️⃣⏩ country_name 子表已存在，跳过';
     END IF;
 
+    -- country_code
     IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_code') THEN
         CREATE TABLE country_code (
-            id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
             country_id UUID NOT NULL,
             code VARCHAR NOT NULL,
             deleted BOOLEAN NOT NULL DEFAULT FALSE,
             created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
             updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
         );
-        CREATE TRIGGER update_code_updated_at
+        CREATE TRIGGER update_country_code_updated_at
-        BEFORE UPDATE ON "country_code"
+            BEFORE UPDATE ON country_code
-        FOR EACH ROW
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
-        EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ country_code 子表已创建';
-        
-        RAISE NOTICE 'created country_code table and trigger';
     ELSE
-        RAISE NOTICE 'country_code table already exists';
+        RAISE NOTICE '3️⃣⏩ country_code 子表已存在，跳过';
+    END IF;
+
+    -- country_flag
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_flag') THEN
+        CREATE TABLE country_flag (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            country_id UUID NOT NULL,
+            flag VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_country_flag_updated_at
+            BEFORE UPDATE ON country_flag
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '4️⃣✅ country_flag 子表已创建';
+    ELSE
+        RAISE NOTICE '4️⃣⏩ country_flag 子表已存在，跳过';
     END IF;
 END $$;
 
+-- 4️⃣ 视图 ------------------------------------
 DO $$
 DECLARE
     view_exists BOOLEAN;
 BEGIN
-    -- 检查视图是否已存在
     SELECT EXISTS (
         SELECT 1 FROM information_schema.views 
         WHERE table_name = 'country_info_view'
     ) INTO view_exists;
 
-    -- 创建或更新视图
-    CREATE OR REPLACE VIEW country_info_view AS
-    SELECT 
-        u.id AS country_id,
-        n.name AS name,
-        c.code AS code,
-        u.deleted AS deleted
-    FROM 
-        country u
-    JOIN 
-        country_name n ON u.id = n.country_id
-    JOIN 
-        country_code c ON u.id = c.country_id
-    WHERE
-        u.deleted = FALSE;
-
-    -- 根据视图是否已存在输出不同提示
     IF view_exists THEN
-        RAISE NOTICE '视图 country_info_view 已更新';
+        DROP VIEW country_info_view;
-    ELSE
+        RAISE NOTICE '4️⃣♻️ 已删除旧视图 country_info_view';
-        RAISE NOTICE '视图 country_info_view 已创建';
     END IF;
+
+    CREATE OR REPLACE VIEW country_info_view AS
+    SELECT
+        u.id AS country_id,
+        n.name,
+        c.code,
+        f.flag
+    FROM country u
+    LEFT JOIN country_name n ON u.id = n.country_id AND n.deleted = FALSE
+    LEFT JOIN country_code c ON u.id = c.country_id AND c.deleted = FALSE
+    LEFT JOIN country_flag f ON u.id = f.country_id AND f.deleted = FALSE
+    WHERE u.deleted = FALSE;
+
+    RAISE NOTICE '4️⃣✅ country_info_view 已创建/更新';
 EXCEPTION
     WHEN OTHERS THEN
-        RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
+        RAISE NOTICE '4️⃣❌ 处理视图时发生错误: %', SQLERRM;
 END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_country_name_country_id_deleted     ON country_name(country_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_country_code_country_id_deleted     ON country_code(country_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_country_flag_country_id_deleted     ON country_flag(country_id, deleted);
+
+DO $$
+BEGIN
+    RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
+END $$;
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ country 部署完成 ============🎉';
+END $$;

backend/sql/05_exchange.sql

@@ -0,0 +1,138 @@
+-- =========================================================
+-- exchange.sql 🏛️
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
+
+-- 1️⃣ 开始 🚀
+DO $$
+BEGIN
+    RAISE NOTICE '🚀============ exchange 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- exchange 主表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'exchange') THEN
+        CREATE TABLE exchange (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_exchange_updated_at
+            BEFORE UPDATE ON exchange
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣✅ exchange 主表已创建';
+    ELSE
+        RAISE NOTICE '1️⃣⏩ exchange 主表已存在，跳过';
+    END IF;
+
+    -- exchange_name
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'exchange_name') THEN
+        CREATE TABLE exchange_name (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            exchange_id UUID NOT NULL,
+            name VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_exchange_name_updated_at
+            BEFORE UPDATE ON exchange_name
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ exchange_name 子表已创建';
+    ELSE
+        RAISE NOTICE '2️⃣⏩ exchange_name 子表已存在，跳过';
+    END IF;
+
+    -- exchange_short_name
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'exchange_short_name') THEN
+        CREATE TABLE exchange_short_name (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            exchange_id UUID NOT NULL,
+            short_name VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_exchange_short_name_updated_at
+            BEFORE UPDATE ON exchange_short_name
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ exchange_short_name 子表已创建';
+    ELSE
+        RAISE NOTICE '3️⃣⏩ exchange_short_name 子表已存在，跳过';
+    END IF;
+
+    -- exchange_code
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'exchange_code') THEN
+        CREATE TABLE exchange_code (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            exchange_id UUID NOT NULL,
+            code VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_exchange_code_updated_at
+            BEFORE UPDATE ON exchange_code
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '4️⃣✅ exchange_code 子表已创建';
+    ELSE
+        RAISE NOTICE '4️⃣⏩ exchange_code 子表已存在，跳过';
+    END IF;
+END $$;
+
+-- 4️⃣ 视图 ------------------------------------
+DO $$
+DECLARE
+    view_exists BOOLEAN;
+BEGIN
+    SELECT EXISTS (
+        SELECT 1 FROM information_schema.views 
+        WHERE table_name = 'exchange_info_view'
+    ) INTO view_exists;
+
+    IF view_exists THEN
+        DROP VIEW exchange_info_view;
+        RAISE NOTICE '4️⃣♻️ 已删除旧视图 exchange_info_view';
+    END IF;
+
+    CREATE OR REPLACE VIEW exchange_info_view AS
+    SELECT
+        u.id AS exchange_id,
+        n.name,
+        sn.short_name,
+        c.code,
+        u.deleted
+    FROM exchange u
+    JOIN exchange_name n ON u.id = n.exchange_id AND n.deleted = FALSE
+    JOIN exchange_short_name sn ON u.id = sn.exchange_id AND sn.deleted = FALSE
+    JOIN exchange_code c ON u.id = c.exchange_id AND c.deleted = FALSE
+    WHERE u.deleted = FALSE;
+
+    RAISE NOTICE '4️⃣✅ exchange_info_view 已创建/更新';
+EXCEPTION
+    WHEN OTHERS THEN
+        RAISE NOTICE '4️⃣❌ 处理视图时发生错误: %', SQLERRM;
+END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_exchange_name_exchange_id_deleted     ON exchange_name(exchange_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_exchange_short_name_exchange_id_deleted ON exchange_short_name(exchange_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_exchange_code_exchange_id_deleted     ON exchange_code(exchange_id, deleted);
+
+DO $$
+BEGIN
+    RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
+END $$;
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ exchange 部署完成 ============🎉';
+END $$;

backend/sql/06_currency.sql

@@ -0,0 +1,117 @@
+-- =========================================================
+-- currency.sql 💰
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
+
+-- 1️⃣ 开始 🚀
+DO $$
+BEGIN
+    RAISE NOTICE '🚀============ currency 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- currency 主表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'currency') THEN
+        CREATE TABLE currency (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_currency_updated_at
+            BEFORE UPDATE ON currency
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣✅ currency 主表已创建';
+    ELSE
+        RAISE NOTICE '1️⃣⏩ currency 主表已存在，跳过';
+    END IF;
+
+    -- currency_name
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'currency_name') THEN
+        CREATE TABLE currency_name (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            currency_id UUID NOT NULL,
+            name VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_currency_name_updated_at
+            BEFORE UPDATE ON currency_name
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ currency_name 子表已创建';
+    ELSE
+        RAISE NOTICE '2️⃣⏩ currency_name 子表已存在，跳过';
+    END IF;
+
+    -- currency_code
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'currency_code') THEN
+        CREATE TABLE currency_code (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            currency_id UUID NOT NULL,
+            code VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_currency_code_updated_at
+            BEFORE UPDATE ON currency_code
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ currency_code 子表已创建';
+    ELSE
+        RAISE NOTICE '3️⃣⏩ currency_code 子表已存在，跳过';
+    END IF;
+END $$;
+
+-- 4️⃣ 视图 ------------------------------------
+DO $$
+DECLARE
+    view_exists BOOLEAN;
+BEGIN
+    SELECT EXISTS (
+        SELECT 1 FROM information_schema.views 
+        WHERE table_name = 'currency_info_view'
+    ) INTO view_exists;
+
+    IF view_exists THEN
+        DROP VIEW currency_info_view;
+        RAISE NOTICE '4️⃣♻️ 已删除旧视图 currency_info_view';
+    END IF;
+
+    CREATE OR REPLACE VIEW currency_info_view AS
+    SELECT
+        u.id AS currency_id,
+        n.name,
+        c.code,
+        u.deleted
+    FROM currency u
+    JOIN currency_name n ON u.id = n.currency_id AND n.deleted = FALSE
+    JOIN currency_code c ON u.id = c.currency_id AND c.deleted = FALSE
+    WHERE u.deleted = FALSE;
+
+    RAISE NOTICE '4️⃣✅ currency_info_view 已创建/更新';
+EXCEPTION
+    WHEN OTHERS THEN
+        RAISE NOTICE '4️⃣❌ 处理视图时发生错误: %', SQLERRM;
+END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_currency_name_currency_id_deleted ON currency_name(currency_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_currency_code_currency_id_deleted ON currency_code(currency_id, deleted);
+
+DO $$
+BEGIN
+    RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
+END $$;
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ currency 部署完成 ============🎉';
+END $$;

backend/sql/07_variety.sql

@@ -0,0 +1,165 @@
+-- =========================================================
+-- variety.sql 🎉
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
+
+-- 1️⃣ 开始 🚀
+DO $$
+BEGIN
+    RAISE NOTICE '🚀============ variety 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- variety 主表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety') THEN
+        CREATE TABLE variety (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        RAISE NOTICE '1️⃣✅ variety 主表已创建';
+    ELSE
+        RAISE NOTICE '1️⃣⏩ variety 主表已存在，跳过';
+    END IF;
+
+    -- variety_exchange
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_exchange') THEN
+        CREATE TABLE variety_exchange (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            variety_id UUID NOT NULL,
+            exchange_id VARCHAR(50) NOT NULL,
+            exchange_name VARCHAR(50) NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_variety_exchange_updated_at
+            BEFORE UPDATE ON variety_exchange
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ variety_exchange 子表已创建';
+    ELSE
+        RAISE NOTICE '2️⃣⏩ variety_exchange 子表已存在，跳过';
+    END IF;
+
+    -- variety_name
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_name') THEN
+        CREATE TABLE variety_name (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            variety_id UUID NOT NULL,
+            name VARCHAR(50) NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_variety_name_updated_at
+            BEFORE UPDATE ON variety_name
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ variety_name 子表已创建';
+    ELSE
+        RAISE NOTICE '3️⃣⏩ variety_name 子表已存在，跳过';
+    END IF;
+
+    -- variety_code
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_code') THEN
+        CREATE TABLE variety_code (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            variety_id UUID NOT NULL,
+            code VARCHAR(50) NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_variety_code_updated_at
+            BEFORE UPDATE ON variety_code
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '4️⃣✅ variety_code 子表已创建';
+    ELSE
+        RAISE NOTICE '4️⃣⏩ variety_code 子表已存在，跳过';
+    END IF;
+
+    -- variety_tick
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_tick') THEN
+        CREATE TABLE variety_tick (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            variety_id UUID NOT NULL,
+            tick NUMERIC(12,6),
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_variety_tick_updated_at
+            BEFORE UPDATE ON variety_tick
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '5️⃣✅ variety_tick 子表已创建';
+    ELSE
+        RAISE NOTICE '5️⃣⏩ variety_tick 子表已存在，跳过';
+    END IF;
+
+    -- variety_tick_price
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'variety_tick_price') THEN
+        CREATE TABLE variety_tick_price (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            variety_id UUID NOT NULL,
+            price NUMERIC(12,6),
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_variety_tick_price_updated_at
+            BEFORE UPDATE ON variety_tick_price
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '6️⃣✅ variety_tick_price 子表已创建';
+    ELSE
+        RAISE NOTICE '6️⃣⏩ variety_tick_price 子表已存在，跳过';
+    END IF;
+END $$;
+
+-- 4️⃣ 视图 ------------------------------------
+DROP VIEW IF EXISTS variety_info_view;
+CREATE OR REPLACE VIEW variety_info_view AS
+SELECT
+    v.id AS variety_id,
+    vn.name,
+    vc.code,
+    ve.exchange_name,
+    format_numeric_to_original(vt.tick) AS tick,
+    format_numeric_to_original(vtp.price) AS tick_price,
+    vt.tick AS tick_original,
+    vtp.price AS tick_price_original
+FROM variety v
+LEFT JOIN variety_name vn ON v.id = vn.variety_id AND vn.deleted = FALSE
+LEFT JOIN variety_code vc ON v.id = vc.variety_id AND vc.deleted = FALSE
+LEFT JOIN variety_exchange ve ON v.id = ve.variety_id AND ve.deleted = FALSE
+LEFT JOIN variety_tick vt ON v.id = vt.variety_id AND vt.deleted = FALSE
+LEFT JOIN variety_tick_price vtp ON v.id = vtp.variety_id AND vtp.deleted = FALSE
+WHERE v.deleted = FALSE;
+
+DO $$
+BEGIN
+    RAISE NOTICE '7️⃣✅ variety_info_view 已创建/更新';
+END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_variety_exchange_variety_id_deleted ON variety_exchange(variety_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_variety_name_variety_id_deleted     ON variety_name(variety_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_variety_code_variety_id_deleted     ON variety_code(variety_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_variety_tick_variety_id_deleted     ON variety_tick(variety_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_variety_tick_price_variety_id_deleted ON variety_tick_price(variety_id, deleted);
+
+DO $$
+BEGIN
+    RAISE NOTICE '8️⃣✅ 全部索引已确保存在';
+END $$;
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ variety 部署完成 ============🎉';
+END $$;

backend/sql/08_trade.sql

@@ -0,0 +1,286 @@
+-- =========================================================
+-- trade.sql 🎉
+-- 无物化视图 | 超可视提示 | 可重复执行
+-- PostgreSQL 17.4+ 👍
+-- =========================================================
+
+-- 1️⃣ 开始 🚀
+DO $$
+BEGIN
+    RAISE NOTICE '🚀============ trade 部署开始 ============🚀';
+END $$;
+
+-- 2️⃣ 连接目标库
+\c postgres;
+
+-- 3️⃣ 表结构 -----------------------------------
+DO $$
+BEGIN
+    -- trade 主表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade') THEN
+        CREATE TABLE trade (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        RAISE NOTICE '1️⃣✅ trade 主表已创建';
+    ELSE
+        RAISE NOTICE '1️⃣⏩ trade 主表已存在，跳过';
+    END IF;
+
+    -- remark 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_remark') THEN
+        CREATE TABLE trade_remark (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            remark VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_remark_updated_at
+            BEFORE UPDATE ON trade_remark
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '2️⃣✅ trade_remark 子表已创建';
+    ELSE
+        RAISE NOTICE '2️⃣⏩ trade_remark 子表已存在，跳过';
+    END IF;
+
+    -- open_date 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_open_date') THEN
+        CREATE TABLE trade_open_date (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            year INT NOT NULL DEFAULT 0,
+            month INT NOT NULL DEFAULT 0,
+            day INT NOT NULL DEFAULT 0,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_open_date_updated_at
+            BEFORE UPDATE ON trade_open_date
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '3️⃣✅ trade_open_date 子表已创建';
+    ELSE
+        RAISE NOTICE '3️⃣⏩ trade_open_date 子表已存在，跳过';
+    END IF;
+
+    -- variety 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_variety') THEN
+        CREATE TABLE trade_variety (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            variety_id UUID NOT NULL,
+            variety_name VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_variety_updated_at
+            BEFORE UPDATE ON trade_variety
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '4️⃣✅ trade_variety 子表已创建';
+    ELSE
+        RAISE NOTICE '4️⃣⏩ trade_variety 子表已存在，跳过';
+    END IF;
+
+    -- direction 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_direction') THEN
+        CREATE TABLE trade_direction (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            direction VARCHAR NOT NULL,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_direction_updated_at
+            BEFORE UPDATE ON trade_direction
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '5️⃣✅ trade_direction 子表已创建';
+    ELSE
+        RAISE NOTICE '5️⃣⏩ trade_direction 子表已存在，跳过';
+    END IF;
+
+    -- open_price 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_open_price') THEN
+        CREATE TABLE trade_open_price (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            open_price NUMERIC(10,6) NOT NULL CHECK (open_price >= 0.00) DEFAULT 0.00,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_open_price_updated_at
+            BEFORE UPDATE ON trade_open_price
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '6️⃣✅ trade_open_price 子表已创建';
+    ELSE
+        RAISE NOTICE '6️⃣⏩ trade_open_price 子表已存在，跳过';
+    END IF;
+
+    -- open_fee 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_open_fee') THEN
+        CREATE TABLE trade_open_fee (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            open_fee NUMERIC(10,6) NOT NULL CHECK (open_fee >= 0.00) DEFAULT 0.00,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_open_fee_updated_at
+            BEFORE UPDATE ON trade_open_fee
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '7️⃣✅ trade_open_fee 子表已创建';
+    ELSE
+        RAISE NOTICE '7️⃣⏩ trade_open_fee 子表已存在，跳过';
+    END IF;
+
+    -- close_date 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_close_date') THEN
+        CREATE TABLE trade_close_date (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            year INT NOT NULL DEFAULT 0,
+            month INT NOT NULL DEFAULT 0,
+            day INT NOT NULL DEFAULT 0,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_close_date_updated_at
+            BEFORE UPDATE ON trade_close_date
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '8️⃣✅ trade_close_date 子表已创建';
+    ELSE
+        RAISE NOTICE '8️⃣⏩ trade_close_date 子表已存在，跳过';
+    END IF;
+
+    -- close_price 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_close_price') THEN
+        CREATE TABLE trade_close_price (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            close_price NUMERIC(10,6) NOT NULL CHECK (close_price >= 0.00) DEFAULT 0.00,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_close_price_updated_at
+            BEFORE UPDATE ON trade_close_price
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '9️⃣✅ trade_close_price 子表已创建';
+    ELSE
+        RAISE NOTICE '9️⃣⏩ trade_close_price 子表已存在，跳过';
+    END IF;
+
+    -- close_fee 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_close_fee') THEN
+        CREATE TABLE trade_close_fee (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            close_fee NUMERIC(10,6) NOT NULL CHECK (close_fee >= 0.00) DEFAULT 0.00,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_close_fee_updated_at
+            BEFORE UPDATE ON trade_close_fee
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '🔟✅ trade_close_fee 子表已创建';
+    ELSE
+        RAISE NOTICE '🔟⏩ trade_close_fee 子表已存在，跳过';
+    END IF;
+
+    -- profit 子表
+    IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'trade_profit') THEN
+        CREATE TABLE trade_profit (
+            id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
+            trade_id UUID NOT NULL REFERENCES trade(id) ON DELETE CASCADE,
+            variety_tick NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            variety_tick_price NUMERIC(12,6) NOT NULL CHECK (variety_tick_price >= 0.00) DEFAULT 0.00,
+            win_tick NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            win_tick_price NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            fee_cost NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            trade_win NUMERIC(12,6) NOT NULL DEFAULT 0.00,
+            deleted BOOLEAN NOT NULL DEFAULT FALSE,
+            created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
+        );
+        CREATE TRIGGER update_trade_profit_updated_at
+            BEFORE UPDATE ON trade_profit
+            FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
+        RAISE NOTICE '1️⃣1️⃣✅ trade_profit 子表已创建';
+    ELSE
+        RAISE NOTICE '1️⃣1️⃣⏩ trade_profit 子表已存在，跳过';
+    END IF;
+END $$;
+
+-- 4️⃣ 视图 ------------------------------------
+DROP VIEW IF EXISTS trade_info_view;
+CREATE OR REPLACE VIEW trade_info_view AS
+SELECT
+    t.id AS trade_id,
+    r.remark AS remark,
+    od.year AS open_year,
+    od.month AS open_month,
+    od.day AS open_day,
+    v.variety_name AS variety_name,
+    d.direction AS direction,
+    format_numeric_to_original(op.open_price) AS open_price,
+    format_numeric_to_original(of.open_fee) AS open_fee,
+    cd.year AS close_year,
+    cd.month AS close_month,
+    cd.day AS close_day,
+    format_numeric_to_original(cp.close_price) AS close_price,
+    format_numeric_to_original(cf.close_fee) AS close_fee,
+    p.variety_tick AS variety_tick,
+    p.variety_tick_price AS variety_tick_price,
+    p.win_tick AS win_tick,
+    p.win_tick_price AS win_tick_price,
+    format_numeric_to_original(p.fee_cost) AS fee_cost,
+    format_numeric_to_original(p.trade_win) AS trade_win
+FROM trade t
+LEFT JOIN trade_remark r ON t.id = r.trade_id AND r.deleted = FALSE
+LEFT JOIN trade_open_date od ON t.id = od.trade_id AND od.deleted = FALSE
+LEFT JOIN trade_variety v ON t.id = v.trade_id AND v.deleted = FALSE
+LEFT JOIN trade_direction d ON t.id = d.trade_id AND d.deleted = FALSE
+LEFT JOIN trade_open_price op ON t.id = op.trade_id AND op.deleted = FALSE
+LEFT JOIN trade_open_fee of ON t.id = of.trade_id AND of.deleted = FALSE
+LEFT JOIN trade_close_date cd ON t.id = cd.trade_id AND cd.deleted = FALSE
+LEFT JOIN trade_close_price cp ON t.id = cp.trade_id AND cp.deleted = FALSE
+LEFT JOIN trade_close_fee cf ON t.id = cf.trade_id AND cf.deleted = FALSE
+LEFT JOIN trade_profit p ON t.id = p.trade_id AND p.deleted = FALSE
+WHERE t.deleted = FALSE;
+
+DO $$
+BEGIN
+    RAISE NOTICE '4️⃣✅ trade_info_view 已创建/更新';
+END $$;
+
+-- 5️⃣ 性能索引 ------------------------------------------------
+CREATE INDEX IF NOT EXISTS idx_trade_remark_trade_id_deleted ON trade_remark(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_open_date_trade_id_deleted ON trade_open_date(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_variety_trade_id_deleted ON trade_variety(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_direction_trade_id_deleted ON trade_direction(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_open_price_trade_id_deleted ON trade_open_price(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_open_fee_trade_id_deleted ON trade_open_fee(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_close_date_trade_id_deleted ON trade_close_date(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_close_price_trade_id_deleted ON trade_close_price(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_close_fee_trade_id_deleted ON trade_close_fee(trade_id, deleted);
+CREATE INDEX IF NOT EXISTS idx_trade_profit_trade_id_deleted ON trade_profit(trade_id, deleted);
+
+DO $$
+BEGIN
+    RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
+END $$;
+
+-- 6️⃣ 完成 🎉
+DO $$
+BEGIN
+    RAISE NOTICE '🎉============ trade 部署完成 ============🎉';
+END $$;

backend/src/db/postgres.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"os"
 	"time"
-	
+
 	_ "github.com/lib/pq"
 	"go.uber.org/zap"
 )
@@ -39,11 +39,11 @@ func Init() {
 	if err != nil {
 		zap.L().Panic("❌ 无法连接数据库", zap.Error(err))
 	}
-	
+
 	// 设置连接池参数
-    DB.SetMaxOpenConns(100)       // 最大打开连接数
+	DB.SetMaxOpenConns(100)          // 最大打开连接数
-    DB.SetMaxIdleConns(20)        // 最大空闲连接数
+	DB.SetMaxIdleConns(20)           // 最大空闲连接数
-    DB.SetConnMaxLifetime(time.Hour) // 连接最大存活时间
+	DB.SetConnMaxLifetime(time.Hour) // 连接最大存活时间
 
 	// 验证数据库连接
 	if err := DB.Ping(); err != nil {
@@ -51,4 +51,4 @@ func Init() {
 	}
 
 	zap.L().Info("✅ 数据库连接验证成功")
-}
+}

backend/src/logger/logger.go

@@ -14,17 +14,17 @@ import (
 var shanghaiLoc *time.Location
 
 func init() {
-    var err error
+	var err error
-    shanghaiLoc, err = time.LoadLocation("Asia/Shanghai")
+	shanghaiLoc, err = time.LoadLocation("Asia/Shanghai")
-    if err != nil {
+	if err != nil {
-        // 尝试备选时区名称
+		// 尝试备选时区名称
-        shanghaiLoc, err = time.LoadLocation("PRC")
+		shanghaiLoc, err = time.LoadLocation("PRC")
-        if err != nil {
+		if err != nil {
-            // 若仍失败，手动设置东八区偏移
+			// 若仍失败，手动设置东八区偏移
-            shanghaiLoc = time.FixedZone("CST", 8*3600)
+			shanghaiLoc = time.FixedZone("CST", 8*3600)
-            log.Printf("警告：加载时区失败，使用手动东八区偏移: %v", err)
+			log.Printf("警告：加载时区失败，使用手动东八区偏移: %v", err)
-        }
+		}
-    }
+	}
 }
 
 // Init 初始化日志（依赖配置文件已加载）
@@ -43,10 +43,10 @@ func Init() {
 	// 日志轮转配置（lumberjack）
 	hook := lumberjack.Logger{
 		Filename:   viper.GetString("logger.path") + "logs/app.log", // 日志文件路径
-		MaxSize:    viper.GetInt("logger.max_size"),            // 单个文件最大大小（MB）
+		MaxSize:    viper.GetInt("logger.max_size"),                 // 单个文件最大大小（MB）
-		MaxBackups: viper.GetInt("logger.max_backup"),          // 最大备份数
+		MaxBackups: viper.GetInt("logger.max_backup"),               // 最大备份数
-		MaxAge:     viper.GetInt("logger.max_age"),             // 最大保留天数
+		MaxAge:     viper.GetInt("logger.max_age"),                  // 最大保留天数
-		Compress:   true,                                       // 是否压缩
+		Compress:   true,                                            // 是否压缩
 	}
 
 	// 编码器配置
@@ -83,4 +83,4 @@ func customTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
 	beijingTime := t.In(shanghaiLoc)
 	// 格式化输出
 	enc.AppendString(beijingTime.Format("2006-01-02 15:04:05.000"))
-}
+}

backend/src/logic4country/create.go

@@ -0,0 +1,303 @@
+package logic4country
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// CreateRequest 注册请求参数结构
+type CreateRequest struct {
+	Name string `json:"name" binding:"required"` // 国家名称，必填
+	Code string `json:"code" binding:"required"` // 国家代码，必填
+	Flag string `json:"flag"`                    // 国旗信息，可选
+}
+
+// CreateResponse 注册响应结构
+type CreateResponse struct {
+	Success bool       `json:"success"`
+	Message string     `json:"message"`
+	Data    CreateData `json:"data"`
+}
+
+// CreateData 响应数据结构
+type CreateData struct {
+	CountryID string `json:"country_id"`
+}
+
+// CreateHandler 处理创建逻辑
+func CreateHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-RegisterRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到国家创建请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req CreateRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+			zap.Any("request_body", c.Request.Body),
+		)
+		c.JSON(http.StatusBadRequest, CreateResponse{
+			Success: false,
+			Message: "请求参数错误：name和code为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("flag", req.Flag),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, CreateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 唯一性校验 - 国家名称（排除已删除数据）
+	var nameCount int
+	err = tx.QueryRow(
+		"SELECT COUNT(*) FROM country_name WHERE name = $1 AND deleted = false",
+		req.Name,
+	).Scan(&nameCount)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 国家名称唯一性校验失败",
+			zap.String("req_id", reqID),
+			zap.String("name", req.Name),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "系统错误，校验名称失败",
+		})
+		return
+	}
+	if nameCount > 0 {
+		tx.Rollback()
+		zap.L().Warn("⚠️ 国家名称已存在（未删除数据）",
+			zap.String("req_id", reqID),
+			zap.String("name", req.Name),
+		)
+		c.JSON(http.StatusBadRequest, CreateResponse{
+			Success: false,
+			Message: "国家名称已存在，请更换名称",
+		})
+		return
+	}
+
+	// 唯一性校验 - 国家编码（排除已删除数据）
+	var codeCount int
+	err = tx.QueryRow(
+		"SELECT COUNT(*) FROM country_code WHERE code = $1 AND deleted = false",
+		req.Code,
+	).Scan(&codeCount)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 国家编码唯一性校验失败",
+			zap.String("req_id", reqID),
+			zap.String("code", req.Code),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "系统错误，校验编码失败",
+		})
+		return
+	}
+	if codeCount > 0 {
+		tx.Rollback()
+		zap.L().Warn("⚠️ 国家编码已存在（未删除数据）",
+			zap.String("req_id", reqID),
+			zap.String("code", req.Code),
+		)
+		c.JSON(http.StatusBadRequest, CreateResponse{
+			Success: false,
+			Message: "国家编码已存在，请更换编码",
+		})
+		return
+	}
+
+	// 唯一性校验 - 国旗（排除已删除数据，仅当提供了国旗参数时）
+	if req.Flag != "" {
+		var flagCount int
+		err = tx.QueryRow(
+			"SELECT COUNT(*) FROM country_flag WHERE flag = $1 AND deleted = false",
+			req.Flag,
+		).Scan(&flagCount)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ 国旗唯一性校验失败",
+				zap.String("req_id", reqID),
+				zap.String("flag", req.Flag),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, CreateResponse{
+				Success: false,
+				Message: "系统错误，校验国旗失败",
+			})
+			return
+		}
+		if flagCount > 0 {
+			tx.Rollback()
+			zap.L().Warn("⚠️ 国旗信息已存在（未删除数据）",
+				zap.String("req_id", reqID),
+				zap.String("flag", req.Flag),
+			)
+			c.JSON(http.StatusBadRequest, CreateResponse{
+				Success: false,
+				Message: "国旗信息已存在，请更换国旗",
+			})
+			return
+		}
+	}
+
+	// 1. 创建country主表记录
+	var countryID string
+	err = tx.QueryRow("INSERT INTO country DEFAULT VALUES RETURNING id").Scan(&countryID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country表插入失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "创建国家记录失败",
+		})
+		return
+	}
+
+	zap.L().Debug("📝 country表插入成功",
+		zap.String("req_id", reqID),
+		zap.String("country_id", countryID),
+	)
+
+	// 2. 插入国家名称
+	_, err = tx.Exec("INSERT INTO country_name (country_id, name) VALUES ($1, $2)", countryID, req.Name)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country_name表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", countryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存名称信息失败",
+		})
+		return
+	}
+
+	// 3. 插入国家代码
+	_, err = tx.Exec("INSERT INTO country_code (country_id, code) VALUES ($1, $2)", countryID, req.Code)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country_code表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", countryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存代码信息失败",
+		})
+		return
+	}
+
+	// 4. 插入国旗信息（如果提供）
+	if req.Flag != "" {
+		_, err = tx.Exec("INSERT INTO country_flag (country_id, flag) VALUES ($1, $2)", countryID, req.Flag)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ country_flag表插入失败",
+				zap.String("req_id", reqID),
+				zap.String("country_id", countryID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, CreateResponse{
+				Success: false,
+				Message: "保存国旗信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 country_flag表插入成功",
+			zap.String("req_id", reqID),
+			zap.String("country_id", countryID),
+		)
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", countryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 国家创建请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("country_id", countryID),
+		zap.Duration("duration", duration),
+	)
+
+	c.JSON(http.StatusOK, CreateResponse{
+		Success: true,
+		Message: "创建成功",
+		Data: CreateData{
+			CountryID: countryID,
+		},
+	})
+}

backend/src/logic4country/delete.go

@@ -0,0 +1,188 @@
+package logic4country
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// DeleteRequest 删除请求参数结构
+type DeleteRequest struct {
+	CountryID string `json:"country_id" binding:"required"` // 国家ID，必填
+}
+
+// DeleteResponse 删除响应结构
+type DeleteResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// DeleteHandler 处理删除逻辑（软删除）
+func DeleteHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-DeleteRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到国家删除请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req DeleteRequest
+	// 绑定并验证请求参数
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, DeleteResponse{
+			Success: false,
+			Message: "请求参数错误：country_id为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("country_id", req.CountryID),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, DeleteResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 3.1 更新country表
+	_, err = tx.Exec("UPDATE country SET deleted = TRUE WHERE id = $1", req.CountryID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除国家记录失败",
+		})
+		return
+	}
+
+	// 3.2 更新name表
+	_, err = tx.Exec("UPDATE country_name SET deleted = TRUE WHERE country_id = $1", req.CountryID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country_name表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除名称信息失败",
+		})
+		return
+	}
+
+	// 3.3 更新code表
+	_, err = tx.Exec("UPDATE country_code SET deleted = TRUE WHERE country_id = $1", req.CountryID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country_code表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除代码信息失败",
+		})
+		return
+	}
+
+	// 新增：3.4 更新flag表（软删除国旗信息）
+	_, err = tx.Exec("UPDATE country_flag SET deleted = TRUE WHERE country_id = $1", req.CountryID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ country_flag表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除国旗信息失败",
+		})
+		return
+	}
+	zap.L().Debug("📝 flag表软删除成功",
+		zap.String("req_id", reqID),
+		zap.String("country_id", req.CountryID),
+	)
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 国家删除请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("country_id", req.CountryID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, DeleteResponse{
+		Success: true,
+		Message: "删除成功",
+	})
+}

backend/src/logic4country/read.go

@@ -0,0 +1,227 @@
+package logic4country
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// ReadRequest 读取请求参数结构
+type ReadRequest struct {
+	CountryID string `form:"country_id"` // 国家ID，可选
+	Name      string `form:"name"`       // 国家名称，可选
+	Code      string `form:"code"`       // 国家代码，可选
+	Flag      string `form:"flag"`       // 国旗信息，新增可选参数
+	Page      string `form:"page"`       // 页码，可选
+	PageSize  string `form:"page_size"`  // 每页条数，可选
+}
+
+// ReadData 读取响应数据结构
+type ReadData struct {
+	Total    int64                 `json:"total"`     // 总条数
+	Page     int                   `json:"page"`      // 当前页码
+	PageSize int                   `json:"page_size"` // 每页条数
+	Items    []CountryInfoViewItem `json:"items"`     // 数据列表
+}
+
+// CountryInfoViewItem 视图数据项结构，新增国旗字段
+type CountryInfoViewItem struct {
+	CountryID string `json:"country_id"` // 国家ID
+	Name      string `json:"name"`       // 国家名称
+	Code      string `json:"code"`       // 国家代码
+	Flag      string `json:"flag"`       // 国旗信息，新增字段
+}
+
+// ReadResponse 读取响应结构
+type ReadResponse struct {
+	Success bool     `json:"success"` // 操作是否成功
+	Message string   `json:"message"` // 提示信息
+	Data    ReadData `json:"data"`    // 响应数据
+}
+
+// ReadHandler 处理查询逻辑
+func ReadHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-ReadRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到国家查询请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	// 绑定请求参数
+	var req ReadRequest
+	if err := c.ShouldBindQuery(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数解析失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数格式错误",
+		})
+		return
+	}
+
+	// 处理分页参数默认值
+	page, err := strconv.Atoi(req.Page)
+	if err != nil || page < 1 {
+		page = 1
+	}
+	pageSize, err := strconv.Atoi(req.PageSize)
+	if err != nil || pageSize < 1 {
+		pageSize = 20
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("country_id", req.CountryID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("flag", req.Flag), // 新增国旗查询参数日志
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+	)
+
+	// 构建查询条件和参数
+	whereClauses := []string{}
+	args := []interface{}{}
+	paramIndex := 1
+
+	if req.CountryID != "" {
+		whereClauses = append(whereClauses, "country_id = $"+strconv.Itoa(paramIndex))
+		args = append(args, req.CountryID)
+		paramIndex++
+	}
+	if req.Name != "" {
+		whereClauses = append(whereClauses, "name LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Name+"%")
+		paramIndex++
+	}
+	if req.Code != "" {
+		whereClauses = append(whereClauses, "code LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Code+"%")
+		paramIndex++
+	}
+	// 新增国旗查询条件
+	if req.Flag != "" {
+		whereClauses = append(whereClauses, "flag LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Flag+"%")
+		paramIndex++
+	}
+
+	// 构建基础SQL，新增flag字段查询
+	baseSQL := "SELECT country_id, name, code, flag FROM country_info_view"
+	countSQL := "SELECT COUNT(*) FROM country_info_view"
+	if len(whereClauses) > 0 {
+		whereStr := " WHERE " + strings.Join(whereClauses, " AND ")
+		baseSQL += whereStr
+		countSQL += whereStr
+	}
+
+	// 计算分页偏移量
+	offset := (page - 1) * pageSize
+
+	// 拼接分页SQL
+	querySQL := fmt.Sprintf("%s ORDER BY country_id LIMIT $%d OFFSET $%d", baseSQL, paramIndex, paramIndex+1)
+	args = append(args, pageSize, offset)
+
+	// 查询总条数
+	var total int64
+	countArgs := args[:len(args)-2] // 排除分页参数
+	err = db.DB.QueryRow(countSQL, countArgs...).Scan(&total)
+	if err != nil {
+		zap.L().Error("❌ 查询总条数失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 执行分页查询
+	rows, err := db.DB.Query(querySQL, args...)
+	if err != nil {
+		zap.L().Error("❌ 分页查询失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+	defer rows.Close()
+
+	// 处理查询结果，新增flag字段扫描
+	var items []CountryInfoViewItem
+	for rows.Next() {
+		var item CountryInfoViewItem
+		if err := rows.Scan(&item.CountryID, &item.Name, &item.Code, &item.Flag); err != nil {
+			zap.L().Error("❌ 解析查询结果失败",
+				zap.String("req_id", reqID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, ReadResponse{
+				Success: false,
+				Message: "数据处理失败，请稍后重试",
+			})
+			return
+		}
+		items = append(items, item)
+	}
+
+	// 检查行迭代过程中是否发生错误
+	if err := rows.Err(); err != nil {
+		zap.L().Error("❌ 行迭代错误",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 国家查询请求处理完成",
+		zap.String("req_id", reqID),
+		zap.Int64("total", total),
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, ReadResponse{
+		Success: true,
+		Message: "查询成功",
+		Data: ReadData{
+			Total:    total,
+			Page:     page,
+			PageSize: pageSize,
+			Items:    items,
+		},
+	})
+}

backend/src/logic4country/update.go

@@ -0,0 +1,232 @@
+package logic4country
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// UpdateRequest 更新请求参数结构
+type UpdateRequest struct {
+	CountryID string `json:"country_id" binding:"required"` // 国家ID，必填
+	Name      string `json:"name"`                          // 国家名称，可选
+	Code      string `json:"code"`                          // 国家代码，可选
+	Flag      string `json:"flag"`                          // 国旗信息，可选（新增字段）
+}
+
+// UpdateResponse 更新响应结构
+type UpdateResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// UpdateHandler 更新逻辑
+func UpdateHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-UpdateRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到国家更新请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req UpdateRequest
+	// 绑定并验证请求参数（主要验证country_id必填）
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：country_id为必填项",
+		})
+		return
+	}
+
+	// 验证name、code和flag不能同时为空
+	if req.Name == "" && req.Code == "" && req.Flag == "" {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.String("reason", "name、code和flag不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：name、code和flag不能同时为空",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("country_id", req.CountryID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("flag", req.Flag), // 新增国旗参数日志
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 如果name不为空，更新name表
+	if req.Name != "" {
+		_, err = tx.Exec("UPDATE country_name SET name = $1, updated_at = CURRENT_TIMESTAMP WHERE country_id = $2", req.Name, req.CountryID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ country_name表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("country_id", req.CountryID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新名称信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 name表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+		)
+	}
+
+	// 如果code不为空，更新code表
+	if req.Code != "" {
+		_, err = tx.Exec("UPDATE country_code SET code = $1, updated_at = CURRENT_TIMESTAMP WHERE country_id = $2", req.Code, req.CountryID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ country_code表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("country_id", req.CountryID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新代码信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 code表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+		)
+	}
+
+	// 新增：如果flag不为空，更新flag表
+	if req.Flag != "" {
+		// 先检查是否存在国旗记录
+		var flagExists bool
+		err = tx.QueryRow("SELECT EXISTS(SELECT 1 FROM country_flag WHERE country_id = $1 AND deleted = FALSE)", req.CountryID).Scan(&flagExists)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ 检查国旗记录存在性失败",
+				zap.String("req_id", reqID),
+				zap.String("country_id", req.CountryID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "检查国旗信息失败",
+			})
+			return
+		}
+
+		if flagExists {
+			// 存在则更新
+			_, err = tx.Exec("UPDATE country_flag SET flag = $1, updated_at = CURRENT_TIMESTAMP WHERE country_id = $2", req.Flag, req.CountryID)
+		} else {
+			// 不存在则插入新记录
+			_, err = tx.Exec("INSERT INTO country_flag (country_id, flag) VALUES ($1, $2)", req.CountryID, req.Flag)
+		}
+
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ country_flag表更新/插入失败",
+				zap.String("req_id", reqID),
+				zap.String("country_id", req.CountryID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新国旗信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 flag表更新/插入成功",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+		)
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("country_id", req.CountryID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 国家更新请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("country_id", req.CountryID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, UpdateResponse{
+		Success: true,
+		Message: "更新成功",
+	})
+}

backend/src/logic4currency/create.go

@@ -0,0 +1,193 @@
+package logic4currency
+
+import (
+	"asset_assistant/db" // 数据库操作相关包
+	"net/http"
+	"time" // 时间处理包
+
+	"github.com/gin-gonic/gin" // Gin框架，用于处理HTTP请求
+	"github.com/google/uuid"   // UUID生成工具
+	"go.uber.org/zap"          // 日志库
+)
+
+// CreateRequest 注册请求参数结构
+// 用于接收客户端发送的JSON数据，绑定并验证必填字段
+type CreateRequest struct {
+	Name string `json:"name" binding:"required"` // 货币名称，必填
+	Code string `json:"code" binding:"required"` // 货币代码，必填
+}
+
+// CreateResponse 注册响应结构
+// 统一的API响应格式，包含成功状态、提示信息和数据
+type CreateResponse struct {
+	Success bool       `json:"success"` // 操作是否成功
+	Message string     `json:"message"` // 提示信息
+	Data    CreateData `json:"data"`    // 响应数据
+}
+
+// CreateData 响应数据结构
+// 包含创建成功后的货币ID
+type CreateData struct {
+	CurrencyID string `json:"currency_id"` // 货币唯一标识ID
+}
+
+// CreateHandler 处理创建逻辑
+func CreateHandler(c *gin.Context) {
+	startTime := time.Now() // 记录请求开始时间，用于统计耗时
+	// 获取或生成请求ID，用于追踪整个请求链路
+	reqID := c.Request.Header.Get("X-RegisterRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志，包含关键追踪信息
+	zap.L().Info("📥 收到货币创建请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req CreateRequest
+	// 绑定并验证请求参数（检查name和code是否存在）
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+			zap.Any("request_body", c.Request.Body),
+		)
+		// 返回参数错误响应
+		c.JSON(http.StatusBadRequest, CreateResponse{
+			Success: false,
+			Message: "请求参数错误：name和code为必填项",
+		})
+		return
+	}
+
+	// 记录通过验证的请求参数
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+	)
+
+	// 开启数据库事务，确保多表操作原子性（要么全成功，要么全失败）
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+	// 延迟执行的恢复函数，处理panic情况
+	defer func() {
+		if r := recover(); r != nil { // 捕获panic
+			// 回滚事务
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			// 返回系统错误响应
+			c.JSON(http.StatusInternalServerError, CreateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 1. 在currency表中创建记录并获取自动生成的ID
+	var currencyID string
+	err = tx.QueryRow("INSERT INTO currency DEFAULT VALUES RETURNING id").Scan(&currencyID)
+	if err != nil {
+		tx.Rollback() // 操作失败，回滚事务
+		zap.L().Error("❌ currency表插入失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "创建货币记录失败",
+		})
+		return
+	}
+
+	zap.L().Debug("📝 currency表插入成功",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", currencyID),
+	)
+
+	// 2. 插入货币名称到name表（与currency_id关联）
+	_, err = tx.Exec("INSERT INTO currency_name (currency_id, name) VALUES ($1, $2)", currencyID, req.Name)
+	if err != nil {
+		tx.Rollback() // 操作失败，回滚事务
+		zap.L().Error("❌ currency_name表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", currencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存名称信息失败",
+		})
+		return
+	}
+
+	// 3. 插入货币代码到code表（与currency_id关联）
+	_, err = tx.Exec("INSERT INTO currency_code (currency_id, code) VALUES ($1, $2)", currencyID, req.Code)
+	if err != nil {
+		tx.Rollback() // 操作失败，回滚事务
+		zap.L().Error("❌ currency_code表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", currencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存代码信息失败",
+		})
+		return
+	}
+
+	// 提交事务（所有操作成功后确认提交）
+	if err := tx.Commit(); err != nil {
+		tx.Rollback() // 提交失败时尝试回滚
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", currencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 货币创建请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", currencyID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应，包含创建的货币ID
+	c.JSON(http.StatusOK, CreateResponse{
+		Success: true,
+		Message: "创建成功",
+		Data: CreateData{
+			CurrencyID: currencyID,
+		},
+	})
+}

backend/src/logic4currency/delete.go

@@ -0,0 +1,168 @@
+package logic4currency
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// DeleteRequest 删除请求参数结构
+type DeleteRequest struct {
+	CurrencyID string `json:"currency_id" binding:"required"` // 货币ID，必填
+}
+
+// DeleteResponse 删除响应结构
+type DeleteResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// DeleteHandler 处理删除逻辑（软删除）
+func DeleteHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-DeleteRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到货币删除请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req DeleteRequest
+	// 绑定并验证请求参数
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, DeleteResponse{
+			Success: false,
+			Message: "请求参数错误：currency_id为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", req.CurrencyID),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, DeleteResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 3.1 更新currency表
+	_, err = tx.Exec("UPDATE currency SET deleted = TRUE WHERE id = $1", req.CurrencyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ currency表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除货币记录失败",
+		})
+		return
+	}
+
+	// 3.2 更新name表
+	_, err = tx.Exec("UPDATE currency_name SET deleted = TRUE WHERE currency_id = $1", req.CurrencyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ currency_name表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除名称信息失败",
+		})
+		return
+	}
+
+	// 3.3 更新code表
+	_, err = tx.Exec("UPDATE currency_code SET deleted = TRUE WHERE currency_id = $1", req.CurrencyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ currency_code表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除代码信息失败",
+		})
+		return
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 货币删除请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", req.CurrencyID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, DeleteResponse{
+		Success: true,
+		Message: "删除成功",
+	})
+}

backend/src/logic4currency/read.go

@@ -0,0 +1,231 @@
+package logic4currency
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// ReadRequest 读取请求参数结构
+type ReadRequest struct {
+	CurrencyID string `form:"currency_id"` // 货币ID，可选
+	Name       string `form:"name"`        // 货币名称，可选
+	Code       string `form:"code"`        // 货币代码，可选
+	Page       string `form:"page"`        // 页码，可选
+	PageSize   string `form:"page_size"`   // 每页条数，可选
+}
+
+// ReadData 读取响应数据结构
+type ReadData struct {
+	Total    int64                  `json:"total"`     // 总条数
+	Page     int                    `json:"page"`      // 当前页码
+	PageSize int                    `json:"page_size"` // 每页条数
+	Items    []CurrencyInfoViewItem `json:"items"`     // 数据列表
+}
+
+// CurrencyInfoViewItem 视图数据项结构
+type CurrencyInfoViewItem struct {
+	CurrencyID string `json:"currency_id"` // 货币ID
+	Name       string `json:"name"`        // 货币名称
+	Code       string `json:"code"`        // 货币代码
+}
+
+// ReadResponse 读取响应结构
+type ReadResponse struct {
+	Success bool     `json:"success"` // 操作是否成功
+	Message string   `json:"message"` // 提示信息
+	Data    ReadData `json:"data"`    // 响应数据
+}
+
+// ReadHandler 处理信息查询逻辑
+func ReadHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-ReadRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到货币查询请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	// 绑定请求参数
+	var req ReadRequest
+	if err := c.ShouldBindQuery(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数解析失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数格式错误",
+		})
+		return
+	}
+
+	// 验证查询条件至少有一个不为空
+	if req.CurrencyID == "" && req.Name == "" && req.Code == "" {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("reason", "currency_id、name、code不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数错误：currency_id、name、code不能同时为空",
+		})
+		return
+	}
+
+	// 处理分页参数默认值
+	page, err := strconv.Atoi(req.Page)
+	if err != nil || page < 1 {
+		page = 1
+	}
+	pageSize, err := strconv.Atoi(req.PageSize)
+	if err != nil || pageSize < 1 {
+		pageSize = 20
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", req.CurrencyID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+	)
+
+	// 构建查询条件和参数
+	whereClauses := []string{}
+	args := []interface{}{}
+	paramIndex := 1
+
+	if req.CurrencyID != "" {
+		whereClauses = append(whereClauses, "currency_id = $"+strconv.Itoa(paramIndex))
+		args = append(args, req.CurrencyID)
+		paramIndex++
+	}
+	if req.Name != "" {
+		whereClauses = append(whereClauses, "name LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Name+"%")
+		paramIndex++
+	}
+	if req.Code != "" {
+		whereClauses = append(whereClauses, "code LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Code+"%")
+		paramIndex++
+	}
+
+	// 构建基础SQL
+	baseSQL := "SELECT currency_id, name, code FROM currency_info_view"
+	countSQL := "SELECT COUNT(*) FROM currency_info_view"
+	if len(whereClauses) > 0 {
+		whereStr := " WHERE " + strings.Join(whereClauses, " AND ")
+		baseSQL += whereStr
+		countSQL += whereStr
+	}
+
+	// 计算分页偏移量
+	offset := (page - 1) * pageSize
+
+	// 拼接分页SQL（使用fmt.Sprintf更清晰）
+	querySQL := fmt.Sprintf("%s ORDER BY currency_id LIMIT $%d OFFSET $%d", baseSQL, paramIndex, paramIndex+1)
+	args = append(args, pageSize, offset)
+
+	// 查询总条数（修正参数传递方式）
+	var total int64
+	countArgs := args[:len(args)-2] // 排除分页参数
+	err = db.DB.QueryRow(countSQL, countArgs...).Scan(&total)
+	if err != nil {
+		zap.L().Error("❌ 查询总条数失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 执行分页查询
+	rows, err := db.DB.Query(querySQL, args...)
+	if err != nil {
+		zap.L().Error("❌ 分页查询失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+	defer rows.Close()
+
+	// 处理查询结果
+	var items []CurrencyInfoViewItem
+	for rows.Next() {
+		var item CurrencyInfoViewItem
+		if err := rows.Scan(&item.CurrencyID, &item.Name, &item.Code); err != nil {
+			zap.L().Error("❌ 解析查询结果失败",
+				zap.String("req_id", reqID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, ReadResponse{
+				Success: false,
+				Message: "数据处理失败，请稍后重试",
+			})
+			return
+		}
+		items = append(items, item)
+	}
+
+	// 检查行迭代过程中是否发生错误
+	if err := rows.Err(); err != nil {
+		zap.L().Error("❌ 行迭代错误",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 货币查询请求处理完成",
+		zap.String("req_id", reqID),
+		zap.Int64("total", total),
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, ReadResponse{
+		Success: true,
+		Message: "查询成功",
+		Data: ReadData{
+			Total:    total,
+			Page:     page,
+			PageSize: pageSize,
+			Items:    items,
+		},
+	})
+}

backend/src/logic4currency/update.go

@@ -0,0 +1,184 @@
+package logic4currency
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// UpdateRequest 更新请求参数结构
+type UpdateRequest struct {
+	CurrencyID string `json:"currency_id" binding:"required"` // 货币ID，必填
+	Name       string `json:"name"`                           // 货币名称，可选
+	Code       string `json:"code"`                           // 货币代码，可选
+}
+
+// UpdateResponse 更新响应结构
+type UpdateResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// UpdateHandler 处理信息更新逻辑
+func UpdateHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-UpdateRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到货币更新请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req UpdateRequest
+	// 绑定并验证请求参数（主要验证currency_id必填）
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：currency_id为必填项",
+		})
+		return
+	}
+
+	// 验证name和code不能同时为空
+	if req.Name == "" && req.Code == "" {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+			zap.String("reason", "name和code不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：name和code不能同时为空",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", req.CurrencyID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 如果name不为空，更新name表
+	if req.Name != "" {
+		_, err = tx.Exec("UPDATE currency_name SET name = $1 WHERE currency_id = $2", req.Name, req.CurrencyID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ currency_name表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("currency_id", req.CurrencyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新名称信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 name表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+		)
+	}
+
+	// 如果code不为空，更新code表
+	if req.Code != "" {
+		_, err = tx.Exec("UPDATE currency_code SET code = $1 WHERE currency_id = $2", req.Code, req.CurrencyID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ currency_code表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("currency_id", req.CurrencyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新代码信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 code表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+		)
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("currency_id", req.CurrencyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 货币更新请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("currency_id", req.CurrencyID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, UpdateResponse{
+		Success: true,
+		Message: "更新成功",
+	})
+}

backend/src/logic4exchange/create.go

@@ -0,0 +1,200 @@
+package logic4exchange
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// CreateRequest 注册请求参数结构
+// 新增short_name字段，保持必填性与其他核心字段一致
+type CreateRequest struct {
+	Name      string `json:"name" binding:"required"`       // 交易所名称，必填
+	Code      string `json:"code" binding:"required"`       // 交易所代码，必填
+	ShortName string `json:"short_name" binding:"required"` // 交易所短名称，必填
+}
+
+// CreateResponse 注册响应结构
+type CreateResponse struct {
+	Success bool       `json:"success"`
+	Message string     `json:"message"`
+	Data    CreateData `json:"data"`
+}
+
+// CreateData 响应数据结构
+type CreateData struct {
+	ExchangeID string `json:"exchange_id"`
+}
+
+// CreateHandler 处理创建逻辑
+func CreateHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-RegisterRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到交易所创建请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req CreateRequest
+	// 绑定参数时会自动验证name、code、short_name三个必填字段
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+			zap.Any("request_body", c.Request.Body),
+		)
+		c.JSON(http.StatusBadRequest, CreateResponse{
+			Success: false,
+			Message: "请求参数错误：name、code和short_name为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("short_name", req.ShortName), // 新增短名称日志
+	)
+
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, CreateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 1. 创建exchange主记录
+	var exchangeID string
+	err = tx.QueryRow("INSERT INTO exchange DEFAULT VALUES RETURNING id").Scan(&exchangeID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange表插入失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "创建交易所记录失败",
+		})
+		return
+	}
+
+	zap.L().Debug("📝 exchange表插入成功",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", exchangeID),
+	)
+
+	// 2. 插入名称信息
+	_, err = tx.Exec("INSERT INTO exchange_name (exchange_id, name) VALUES ($1, $2)", exchangeID, req.Name)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange_name表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", exchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存名称信息失败",
+		})
+		return
+	}
+
+	// 3. 新增：插入短名称信息（对应exchange_short_name表）
+	_, err = tx.Exec("INSERT INTO exchange_short_name (exchange_id, short_name) VALUES ($1, $2)", exchangeID, req.ShortName)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange_short_name表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", exchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存短名称信息失败",
+		})
+		return
+	}
+
+	// 4. 插入代码信息
+	_, err = tx.Exec("INSERT INTO exchange_code (exchange_id, code) VALUES ($1, $2)", exchangeID, req.Code)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange_code表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", exchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存代码信息失败",
+		})
+		return
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", exchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 交易所创建请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", exchangeID),
+		zap.Duration("duration", duration),
+	)
+
+	c.JSON(http.StatusOK, CreateResponse{
+		Success: true,
+		Message: "创建成功",
+		Data: CreateData{
+			ExchangeID: exchangeID,
+		},
+	})
+}

backend/src/logic4exchange/delete.go

@@ -0,0 +1,184 @@
+package logic4exchange
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// DeleteRequest 删除请求参数结构
+type DeleteRequest struct {
+	ExchangeID string `json:"exchange_id" binding:"required"` // 交易所ID，必填
+}
+
+// DeleteResponse 删除响应结构
+type DeleteResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// DeleteHandler 处理删除逻辑（软删除）
+func DeleteHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-DeleteRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到交易所删除请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req DeleteRequest
+	// 绑定并验证请求参数
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, DeleteResponse{
+			Success: false,
+			Message: "请求参数错误：exchange_id为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", req.ExchangeID),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, DeleteResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 1. 更新exchange表
+	_, err = tx.Exec("UPDATE exchange SET deleted = TRUE WHERE id = $1", req.ExchangeID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除交易所记录失败",
+		})
+		return
+	}
+
+	// 2. 更新exchange_name表
+	_, err = tx.Exec("UPDATE exchange_name SET deleted = TRUE WHERE exchange_id = $1", req.ExchangeID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange_name表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除名称信息失败",
+		})
+		return
+	}
+
+	// 3. 新增：更新exchange_short_name表（软删除短名称记录）
+	_, err = tx.Exec("UPDATE exchange_short_name SET deleted = TRUE WHERE exchange_id = $1", req.ExchangeID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange_short_name表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除短名称信息失败",
+		})
+		return
+	}
+
+	// 4. 更新exchange_code表
+	_, err = tx.Exec("UPDATE exchange_code SET deleted = TRUE WHERE exchange_id = $1", req.ExchangeID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ exchange_code表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除代码信息失败",
+		})
+		return
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 交易所删除请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", req.ExchangeID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, DeleteResponse{
+		Success: true,
+		Message: "删除成功",
+	})
+}

backend/src/logic4exchange/read.go

@@ -0,0 +1,240 @@
+package logic4exchange
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// ReadRequest 读取请求参数结构
+type ReadRequest struct {
+	ExchangeID string `form:"exchange_id"` // 交易所ID，可选
+	Name       string `form:"name"`        // 交易所名称，可选
+	Code       string `form:"code"`        // 交易所代码，可选
+	ShortName  string `form:"short_name"`  // 交易所短名称，新增查询条件
+	Page       string `form:"page"`        // 页码，可选
+	PageSize   string `form:"page_size"`   // 每页条数，可选
+}
+
+// ReadData 读取响应数据结构
+type ReadData struct {
+	Total    int64                  `json:"total"`     // 总条数
+	Page     int                    `json:"page"`      // 当前页码
+	PageSize int                    `json:"page_size"` // 每页条数
+	Items    []ExchangeInfoViewItem `json:"items"`     // 数据列表
+}
+
+// ExchangeInfoViewItem 视图数据项结构
+type ExchangeInfoViewItem struct {
+	ExchangeID string `json:"exchange_id"` // 交易所ID
+	Name       string `json:"name"`        // 交易所名称
+	Code       string `json:"code"`        // 交易所代码
+	ShortName  string `json:"short_name"`  // 新增：交易所短名称
+}
+
+// ReadResponse 读取响应结构
+type ReadResponse struct {
+	Success bool     `json:"success"` // 操作是否成功
+	Message string   `json:"message"` // 提示信息
+	Data    ReadData `json:"data"`    // 响应数据
+}
+
+// ReadHandler 处理信息查询逻辑
+func ReadHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-ReadRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到交易所查询请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	// 绑定请求参数
+	var req ReadRequest
+	if err := c.ShouldBindQuery(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数解析失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数格式错误",
+		})
+		return
+	}
+
+	// 验证查询条件至少有一个不为空（新增short_name作为可选条件）
+	if req.ExchangeID == "" && req.Name == "" && req.Code == "" && req.ShortName == "" {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("reason", "exchange_id、name、code、short_name不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数错误：exchange_id、name、code、short_name不能同时为空",
+		})
+		return
+	}
+
+	// 处理分页参数默认值
+	page, err := strconv.Atoi(req.Page)
+	if err != nil || page < 1 {
+		page = 1
+	}
+	pageSize, err := strconv.Atoi(req.PageSize)
+	if err != nil || pageSize < 1 {
+		pageSize = 20
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", req.ExchangeID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("short_name", req.ShortName), // 新增短名称日志
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+	)
+
+	// 构建查询条件和参数
+	whereClauses := []string{}
+	args := []interface{}{}
+	paramIndex := 1
+
+	if req.ExchangeID != "" {
+		whereClauses = append(whereClauses, "exchange_id = $"+strconv.Itoa(paramIndex))
+		args = append(args, req.ExchangeID)
+		paramIndex++
+	}
+	if req.Name != "" {
+		whereClauses = append(whereClauses, "name LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Name+"%")
+		paramIndex++
+	}
+	// 新增：短名称查询条件
+	if req.ShortName != "" {
+		whereClauses = append(whereClauses, "short_name LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.ShortName+"%")
+		paramIndex++
+	}
+	if req.Code != "" {
+		whereClauses = append(whereClauses, "code LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Code+"%")
+		paramIndex++
+	}
+
+	// 构建基础SQL（新增查询short_name字段）
+	baseSQL := "SELECT exchange_id, name, short_name, code FROM exchange_info_view"
+	countSQL := "SELECT COUNT(*) FROM exchange_info_view"
+	if len(whereClauses) > 0 {
+		whereStr := " WHERE " + strings.Join(whereClauses, " AND ")
+		baseSQL += whereStr
+		countSQL += whereStr
+	}
+
+	// 计算分页偏移量
+	offset := (page - 1) * pageSize
+
+	// 拼接分页SQL
+	querySQL := fmt.Sprintf("%s ORDER BY exchange_id LIMIT $%d OFFSET $%d", baseSQL, paramIndex, paramIndex+1)
+	args = append(args, pageSize, offset)
+
+	// 查询总条数
+	var total int64
+	countArgs := args[:len(args)-2] // 排除分页参数
+	err = db.DB.QueryRow(countSQL, countArgs...).Scan(&total)
+	if err != nil {
+		zap.L().Error("❌ 查询总条数失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 执行分页查询
+	rows, err := db.DB.Query(querySQL, args...)
+	if err != nil {
+		zap.L().Error("❌ 分页查询失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+	defer rows.Close()
+
+	// 处理查询结果（新增扫描short_name字段）
+	var items []ExchangeInfoViewItem
+	for rows.Next() {
+		var item ExchangeInfoViewItem
+		if err := rows.Scan(&item.ExchangeID, &item.Name, &item.ShortName, &item.Code); err != nil {
+			zap.L().Error("❌ 解析查询结果失败",
+				zap.String("req_id", reqID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, ReadResponse{
+				Success: false,
+				Message: "数据处理失败，请稍后重试",
+			})
+			return
+		}
+		items = append(items, item)
+	}
+
+	// 检查行迭代过程中是否发生错误
+	if err := rows.Err(); err != nil {
+		zap.L().Error("❌ 行迭代错误",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 交易所查询请求处理完成",
+		zap.String("req_id", reqID),
+		zap.Int64("total", total),
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, ReadResponse{
+		Success: true,
+		Message: "查询成功",
+		Data: ReadData{
+			Total:    total,
+			Page:     page,
+			PageSize: pageSize,
+			Items:    items,
+		},
+	})
+}

backend/src/logic4exchange/update.go

@@ -0,0 +1,208 @@
+package logic4exchange
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// UpdateRequest 更新请求参数结构
+type UpdateRequest struct {
+	ExchangeID string `json:"exchange_id" binding:"required"` // 交易所ID，必填
+	Name       string `json:"name"`                           // 交易所名称，可选
+	Code       string `json:"code"`                           // 交易所代码，可选
+	ShortName  string `json:"short_name"`                     // 新增：交易所短名称，可选
+}
+
+// UpdateResponse 更新响应结构
+type UpdateResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// UpdateHandler 处理信息更新逻辑
+func UpdateHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-UpdateRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到交易所更新请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req UpdateRequest
+	// 绑定并验证请求参数（主要验证exchange_id必填）
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：exchange_id为必填项",
+		})
+		return
+	}
+
+	// 验证name、code和short_name不能同时为空
+	if req.Name == "" && req.Code == "" && req.ShortName == "" {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.String("reason", "name、code和short_name不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：name、code和short_name不能同时为空",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", req.ExchangeID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("short_name", req.ShortName), // 新增短名称日志
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 如果name不为空，更新name表
+	if req.Name != "" {
+		_, err = tx.Exec("UPDATE exchange_name SET name = $1 WHERE exchange_id = $2", req.Name, req.ExchangeID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ exchange_name表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("exchange_id", req.ExchangeID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新名称信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 name表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+		)
+	}
+
+	// 如果code不为空，更新code表
+	if req.Code != "" {
+		_, err = tx.Exec("UPDATE exchange_code SET code = $1 WHERE exchange_id = $2", req.Code, req.ExchangeID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ exchange_code表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("exchange_id", req.ExchangeID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新代码信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 code表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+		)
+	}
+
+	// 新增：如果short_name不为空，更新short_name表
+	if req.ShortName != "" {
+		_, err = tx.Exec("UPDATE exchange_short_name SET short_name = $1 WHERE exchange_id = $2", req.ShortName, req.ExchangeID)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ exchange_short_name表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("exchange_id", req.ExchangeID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新短名称信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 short_name表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+		)
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("exchange_id", req.ExchangeID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 交易所更新请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("exchange_id", req.ExchangeID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, UpdateResponse{
+		Success: true,
+		Message: "更新成功",
+	})
+}

backend/src/logic4user/login.go

@@ -30,7 +30,7 @@ type LoginResponse struct {
 	} `json:"data"`
 }
 
-// LoginHandler 处理用户登录请求的处理器函数
+// LoginHandler 处理登录请求的处理器函数
 // 参数c是gin.Context，用于获取请求信息和返回响应
 func LoginHandler(c *gin.Context) {
 	// 获取请求ID，用于追踪请求链路，若请求头中没有则生成一个新的UUID
@@ -54,7 +54,7 @@ func LoginHandler(c *gin.Context) {
 			zap.Error(err),
 			zap.Any("请求体", c.Request.Body),
 		)
-		c.JSON(http.StatusBadRequest, LoginResponse{
+		c.JSON(http.StatusOK, LoginResponse{
 			Success: false,
 			Message: "账号或密码不能为空",
 		})
@@ -72,7 +72,7 @@ func LoginHandler(c *gin.Context) {
 			zap.String("reqID", reqID),
 			zap.String("账号", req.Account),
 		)
-		c.JSON(http.StatusBadRequest, LoginResponse{
+		c.JSON(http.StatusOK, LoginResponse{
 			Success: false,
 			Message: "账号或密码不能为空",
 		})

backend/src/logic4user/register.go

@@ -28,7 +28,7 @@ type RegisterResponse struct {
 	} `json:"data"`
 }
 
-// registerHandler 处理用户注册逻辑
+// registerHandler 处理注册逻辑
 func RegisterHandler(c *gin.Context) {
 	startTime := time.Now()
 	reqID := c.Request.Header.Get("X-RegisterRequest-ID")
@@ -171,7 +171,7 @@ func RegisterHandler(c *gin.Context) {
 
 	// 7. 插入account表
 	insertAccountQuery := `
-		INSERT INTO account (user_id, account)
+		INSERT INTO user_account (user_id, account)
 		VALUES ($1, $2)
 	`
 	zap.L().Info("💡 执行账号插入",
@@ -196,7 +196,7 @@ func RegisterHandler(c *gin.Context) {
 
 	// 8. 插入password表
 	insertPasswordQuery := `
-		INSERT INTO password (user_id, password)
+		INSERT INTO user_password (user_id, password)
 		VALUES ($1, $2)
 	`
 	zap.L().Info("💡 执行密码插入",

backend/src/logic4variety/create.go

@@ -0,0 +1,235 @@
+package logic4variety
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// CreateRequest 创建品种请求参数结构
+type CreateRequest struct {
+	Name       string  `json:"name" binding:"required"`        // 品种名称，必填
+	Code       string  `json:"code" binding:"required"`        // 品种代码，必填
+	Tick       float64 `json:"tick" binding:"required"`        // 品种tick，必填
+	TickPrice  float64 `json:"tick_price" binding:"required"`  // 品种tick价格，必填
+	ExchangeID string  `json:"exchange_id" binding:"required"` // 交易所ID，必填
+}
+
+// CreateResponse 创建品种响应结构
+type CreateResponse struct {
+	Success bool       `json:"success"`
+	Message string     `json:"message"`
+	Data    CreateData `json:"data"`
+}
+
+// CreateData 响应数据结构
+type CreateData struct {
+	VarietyID string `json:"variety_id"`
+}
+
+// CreateHandler 处理创建品种逻辑
+func CreateHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-VarietyCreateRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到品种创建请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req CreateRequest
+	// 绑定参数时会自动验证所有必填字段
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+			zap.Any("request_body", c.Request.Body),
+		)
+		c.JSON(http.StatusBadRequest, CreateResponse{
+			Success: false,
+			Message: "请求参数错误：name、code、tick、tick_price和exchange_id为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.Float64("tick", req.Tick),
+		zap.Float64("tick_price", req.TickPrice),
+		zap.String("exchange_id", req.ExchangeID),
+	)
+
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, CreateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 1. 创建variety主记录
+	var varietyID string
+	err = tx.QueryRow("INSERT INTO variety DEFAULT VALUES RETURNING id").Scan(&varietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety表插入失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "创建品种记录失败",
+		})
+		return
+	}
+
+	zap.L().Debug("📝 variety表插入成功",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", varietyID),
+	)
+
+	// 2. 插入交易所关联信息
+	_, err = tx.Exec("INSERT INTO variety_exchange (variety_id, exchange_id) VALUES ($1, $2)", varietyID, req.ExchangeID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_exchange表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", varietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存交易所关联信息失败",
+		})
+		return
+	}
+
+	// 3. 插入名称信息
+	_, err = tx.Exec("INSERT INTO variety_name (variety_id, name) VALUES ($1, $2)", varietyID, req.Name)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_name表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", varietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存名称信息失败",
+		})
+		return
+	}
+
+	// 4. 插入代码信息
+	_, err = tx.Exec("INSERT INTO variety_code (variety_id, code) VALUES ($1, $2)", varietyID, req.Code)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_code表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", varietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存代码信息失败",
+		})
+		return
+	}
+
+	// 5. 插入tick信息
+	_, err = tx.Exec("INSERT INTO variety_tick (variety_id, tick) VALUES ($1, $2)", varietyID, req.Tick)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_tick表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", varietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存tick信息失败",
+		})
+		return
+	}
+
+	// 6. 插入tick价格信息
+	_, err = tx.Exec("INSERT INTO variety_tick_price (variety_id, price) VALUES ($1, $2)", varietyID, req.TickPrice)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_tick_price表插入失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", varietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "保存tick价格信息失败",
+		})
+		return
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", varietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, CreateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 品种创建请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", varietyID),
+		zap.Duration("duration", duration),
+	)
+
+	c.JSON(http.StatusOK, CreateResponse{
+		Success: true,
+		Message: "创建成功",
+		Data: CreateData{
+			VarietyID: varietyID,
+		},
+	})
+}

backend/src/logic4variety/delete.go

@@ -0,0 +1,216 @@
+package logic4variety
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// DeleteRequest 删除请求参数结构
+type DeleteRequest struct {
+	VarietyID string `json:"variety_id" binding:"required"` // 品种ID，必填
+}
+
+// DeleteResponse 删除响应结构
+type DeleteResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// DeleteHandler 处理删除逻辑（软删除）
+func DeleteHandler(c *gin.Context) {
+	startTime := time.Now()
+	reqID := c.Request.Header.Get("X-DeleteRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	zap.L().Info("📥 收到品种删除请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req DeleteRequest
+	// 绑定并验证请求参数
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, DeleteResponse{
+			Success: false,
+			Message: "请求参数错误：variety_id为必填项",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", req.VarietyID),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, DeleteResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 1. 更新variety表
+	_, err = tx.Exec("UPDATE variety SET deleted = TRUE WHERE id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除品种记录失败",
+		})
+		return
+	}
+
+	// 2. 更新variety_exchange表
+	_, err = tx.Exec("UPDATE variety_exchange SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_exchange表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除交易所关联信息失败",
+		})
+		return
+	}
+
+	// 3. 更新variety_name表
+	_, err = tx.Exec("UPDATE variety_name SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_name表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除名称信息失败",
+		})
+		return
+	}
+
+	// 4. 更新variety_code表
+	_, err = tx.Exec("UPDATE variety_code SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_code表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除代码信息失败",
+		})
+		return
+	}
+
+	// 5. 更新variety_tick表
+	_, err = tx.Exec("UPDATE variety_tick SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_tick表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除最小变动价位信息失败",
+		})
+		return
+	}
+
+	// 6. 更新variety_tick_price表
+	_, err = tx.Exec("UPDATE variety_tick_price SET deleted = TRUE WHERE variety_id = $1", req.VarietyID)
+	if err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ variety_tick_price表更新失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "删除最小变动价位金额信息失败",
+		})
+		return
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, DeleteResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 品种删除请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", req.VarietyID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, DeleteResponse{
+		Success: true,
+		Message: "删除成功",
+	})
+}

backend/src/logic4variety/read.go

@@ -0,0 +1,243 @@
+package logic4variety
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// ReadRequest 读取请求参数结构
+type ReadRequest struct {
+	VarietyID    string `form:"variety_id"`    // 品种ID，可选
+	Name         string `form:"name"`          // 品种名称，可选
+	Code         string `form:"code"`          // 品种代码，可选
+	ExchangeName string `form:"exchange_name"` // 交易所名称，可选
+	Page         string `form:"page"`          // 页码，可选
+	PageSize     string `form:"page_size"`     // 每页条数，可选
+}
+
+// ReadData 读取响应数据结构
+type ReadData struct {
+	Total    int64                 `json:"total"`     // 总条数
+	Page     int                   `json:"page"`      // 当前页码
+	PageSize int                   `json:"page_size"` // 每页条数
+	Items    []VarietyInfoViewItem `json:"items"`     // 数据列表
+}
+
+// VarietyInfoViewItem 视图数据项结构
+type VarietyInfoViewItem struct {
+	VarietyID         string  `json:"variety_id"`          // 品种ID
+	Name              string  `json:"name"`                // 品种名称
+	Code              string  `json:"code"`                // 品种代码
+	ExchangeName      string  `json:"exchange_name"`       // 交易所名称
+	Tick              string  `json:"tick"`                // 最小变动价位
+	TickPrice         string  `json:"tick_price"`          // 最小变动价位对应的价值
+	TickOriginal      float64 `json:"tick_original"`       // 最小变动价位(原始值)
+	TickPriceOriginal float64 `json:"tick_price_original"` // 最小变动价位对应的价值(原始值)
+}
+
+// ReadResponse 读取响应结构
+type ReadResponse struct {
+	Success bool     `json:"success"` // 操作是否成功
+	Message string   `json:"message"` // 提示信息
+	Data    ReadData `json:"data"`    // 响应数据
+}
+
+// ReadHandler 处理信息查询逻辑
+func ReadHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-ReadRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到品种查询请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	// 绑定请求参数
+	var req ReadRequest
+	if err := c.ShouldBindQuery(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数解析失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数格式错误",
+		})
+		return
+	}
+
+	// 验证查询条件至少有一个不为空
+	if req.VarietyID == "" && req.Name == "" && req.Code == "" && req.ExchangeName == "" {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("reason", "variety_id、name、code、exchange_name不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, ReadResponse{
+			Success: false,
+			Message: "请求参数错误：variety_id、name、code、exchange_name不能同时为空",
+		})
+		return
+	}
+
+	// 处理分页参数默认值
+	page, err := strconv.Atoi(req.Page)
+	if err != nil || page < 1 {
+		page = 1
+	}
+	pageSize, err := strconv.Atoi(req.PageSize)
+	if err != nil || pageSize < 1 {
+		pageSize = 20
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", req.VarietyID),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.String("exchange_name", req.ExchangeName),
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+	)
+
+	// 构建查询条件和参数
+	whereClauses := []string{}
+	args := []interface{}{}
+	paramIndex := 1
+
+	if req.VarietyID != "" {
+		whereClauses = append(whereClauses, "variety_id = $"+strconv.Itoa(paramIndex))
+		args = append(args, req.VarietyID)
+		paramIndex++
+	}
+	if req.Name != "" {
+		whereClauses = append(whereClauses, "name LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Name+"%")
+		paramIndex++
+	}
+	if req.ExchangeName != "" {
+		whereClauses = append(whereClauses, "exchange_name LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.ExchangeName+"%")
+		paramIndex++
+	}
+	if req.Code != "" {
+		whereClauses = append(whereClauses, "code LIKE $"+strconv.Itoa(paramIndex))
+		args = append(args, "%"+req.Code+"%")
+		paramIndex++
+	}
+
+	// 构建基础SQL
+	baseSQL := "SELECT variety_id, name, code, exchange_name, tick, tick_price, tick_original, tick_price_original FROM variety_info_view"
+	countSQL := "SELECT COUNT(*) FROM variety_info_view"
+	if len(whereClauses) > 0 {
+		whereStr := " WHERE " + strings.Join(whereClauses, " AND ")
+		baseSQL += whereStr
+		countSQL += whereStr
+	}
+
+	// 计算分页偏移量
+	offset := (page - 1) * pageSize
+
+	// 拼接分页SQL
+	querySQL := fmt.Sprintf("%s ORDER BY variety_id LIMIT $%d OFFSET $%d", baseSQL, paramIndex, paramIndex+1)
+	args = append(args, pageSize, offset)
+
+	// 查询总条数
+	var total int64
+	countArgs := args[:len(args)-2] // 排除分页参数
+	err = db.DB.QueryRow(countSQL, countArgs...).Scan(&total)
+	if err != nil {
+		zap.L().Error("❌ 查询总条数失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 执行分页查询
+	rows, err := db.DB.Query(querySQL, args...)
+	if err != nil {
+		zap.L().Error("❌ 分页查询失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+	defer rows.Close()
+
+	// 处理查询结果
+	var items []VarietyInfoViewItem
+	for rows.Next() {
+		var item VarietyInfoViewItem
+		if err := rows.Scan(&item.VarietyID, &item.Name, &item.Code, &item.ExchangeName, &item.Tick, &item.TickPrice, &item.TickOriginal, &item.TickPriceOriginal); err != nil {
+			zap.L().Error("❌ 解析查询结果失败",
+				zap.String("req_id", reqID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, ReadResponse{
+				Success: false,
+				Message: "数据处理失败，请稍后重试",
+			})
+			return
+		}
+		items = append(items, item)
+	}
+
+	// 检查行迭代过程中是否发生错误
+	if err := rows.Err(); err != nil {
+		zap.L().Error("❌ 行迭代错误",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, ReadResponse{
+			Success: false,
+			Message: "查询数据失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 品种查询请求处理完成",
+		zap.String("req_id", reqID),
+		zap.Int64("total", total),
+		zap.Int("page", page),
+		zap.Int("page_size", pageSize),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, ReadResponse{
+		Success: true,
+		Message: "查询成功",
+		Data: ReadData{
+			Total:    total,
+			Page:     page,
+			PageSize: pageSize,
+			Items:    items,
+		},
+	})
+}

backend/src/logic4variety/update.go

@@ -0,0 +1,370 @@
+package logic4variety
+
+import (
+	"asset_assistant/db"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+	"go.uber.org/zap"
+)
+
+// UpdateRequest 更新请求参数结构
+type UpdateRequest struct {
+	VarietyID    string  `json:"variety_id" binding:"required"` // 品种ID，必填
+	ExchangeID   string  `json:"exchange_id"`                   // 交易所ID，可选
+	ExchangeName string  `json:"exchange_name"`                 // 交易所名称，可选
+	Name         string  `json:"name"`                          // 品种名称，可选
+	Code         string  `json:"code"`                          // 品种代码，可选
+	Tick         float64 `json:"tick"`                          // 最小变动价位，可选
+	TickPrice    float64 `json:"tick_price"`                    // 最小变动价值，可选
+}
+
+// UpdateResponse 更新响应结构
+type UpdateResponse struct {
+	Success bool   `json:"success"` // 操作是否成功
+	Message string `json:"message"` // 提示信息
+}
+
+// UpdateHandler 处理信息更新逻辑
+func UpdateHandler(c *gin.Context) {
+	startTime := time.Now()
+	// 获取或生成请求ID
+	reqID := c.Request.Header.Get("X-UpdateRequest-ID")
+	if reqID == "" {
+		reqID = uuid.New().String()
+		zap.L().Debug("✨ 生成新的请求ID", zap.String("req_id", reqID))
+	}
+
+	// 记录请求接收日志
+	zap.L().Info("📥 收到品种更新请求",
+		zap.String("req_id", reqID),
+		zap.String("path", c.Request.URL.Path),
+		zap.String("method", c.Request.Method),
+	)
+
+	var req UpdateRequest
+	// 绑定并验证请求参数（主要验证variety_id必填）
+	if err := c.ShouldBindJSON(&req); err != nil {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：variety_id为必填项",
+		})
+		return
+	}
+
+	// 验证所有可选字段不能同时为空
+	if req.ExchangeID == "" && req.ExchangeName == "" && req.Name == "" && req.Code == "" && req.Tick == 0 && req.TickPrice == 0 {
+		zap.L().Warn("⚠️ 请求参数验证失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.String("reason", "所有更新字段不能同时为空"),
+		)
+		c.JSON(http.StatusBadRequest, UpdateResponse{
+			Success: false,
+			Message: "请求参数错误：至少提供一个需要更新的字段",
+		})
+		return
+	}
+
+	zap.L().Debug("✅ 请求参数验证通过",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", req.VarietyID),
+		zap.String("exchange_id", req.ExchangeID),
+		zap.String("exchange_name", req.ExchangeName),
+		zap.String("name", req.Name),
+		zap.String("code", req.Code),
+		zap.Float64("tick", req.Tick),
+		zap.Float64("tick_price", req.TickPrice),
+	)
+
+	// 开启数据库事务
+	tx, err := db.DB.Begin()
+	if err != nil {
+		zap.L().Error("❌ 事务开启失败",
+			zap.String("req_id", reqID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "系统错误，请稍后重试",
+		})
+		return
+	}
+
+	// 延迟处理panic情况
+	defer func() {
+		if r := recover(); r != nil {
+			if err := tx.Rollback(); err != nil {
+				zap.L().Error("💥 panic后事务回滚失败",
+					zap.String("req_id", reqID),
+					zap.Error(err),
+				)
+			}
+			zap.L().Error("💥 事务处理发生panic",
+				zap.String("req_id", reqID),
+				zap.Any("recover", r),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "系统错误，请稍后重试",
+			})
+		}
+	}()
+
+	// 如果exchange_id或exchange_name不为空，更新variety_exchange表
+	if req.ExchangeID != "" || req.ExchangeName != "" {
+		// 先查询是否已存在记录
+		var count int
+		err = tx.QueryRow("SELECT COUNT(*) FROM variety_exchange WHERE variety_id = $1 AND deleted = FALSE", req.VarietyID).Scan(&count)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_exchange表查询失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "查询交易所信息失败",
+			})
+			return
+		}
+
+		if count > 0 {
+			// 更新现有记录
+			_, err = tx.Exec("UPDATE variety_exchange SET exchange_id = $1, exchange_name = $2 WHERE variety_id = $3", req.ExchangeID, req.ExchangeName, req.VarietyID)
+		} else {
+			// 插入新记录
+			_, err = tx.Exec("INSERT INTO variety_exchange (variety_id, exchange_id, exchange_name) VALUES ($1, $2, $3)", req.VarietyID, req.ExchangeID, req.ExchangeName)
+		}
+
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_exchange表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新交易所信息失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 variety_exchange表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+		)
+	}
+
+	// 如果name不为空，更新variety_name表
+	if req.Name != "" {
+		// 先查询是否已存在记录
+		var count int
+		err = tx.QueryRow("SELECT COUNT(*) FROM variety_name WHERE variety_id = $1 AND deleted = FALSE", req.VarietyID).Scan(&count)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_name表查询失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "查询品种名称失败",
+			})
+			return
+		}
+
+		if count > 0 {
+			_, err = tx.Exec("UPDATE variety_name SET name = $1 WHERE variety_id = $2", req.Name, req.VarietyID)
+		} else {
+			_, err = tx.Exec("INSERT INTO variety_name (variety_id, name) VALUES ($1, $2)", req.VarietyID, req.Name)
+		}
+
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_name表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新品种名称失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 variety_name表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+		)
+	}
+
+	// 如果code不为空，更新variety_code表
+	if req.Code != "" {
+		// 先查询是否已存在记录
+		var count int
+		err = tx.QueryRow("SELECT COUNT(*) FROM variety_code WHERE variety_id = $1 AND deleted = FALSE", req.VarietyID).Scan(&count)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_code表查询失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "查询品种代码失败",
+			})
+			return
+		}
+
+		if count > 0 {
+			_, err = tx.Exec("UPDATE variety_code SET code = $1 WHERE variety_id = $2", req.Code, req.VarietyID)
+		} else {
+			_, err = tx.Exec("INSERT INTO variety_code (variety_id, code) VALUES ($1, $2)", req.VarietyID, req.Code)
+		}
+
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_code表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新品种代码失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 variety_code表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+		)
+	}
+
+	// 如果tick不为0，更新variety_tick表
+	if req.Tick != 0 {
+		// 先查询是否已存在记录
+		var count int
+		err = tx.QueryRow("SELECT COUNT(*) FROM variety_tick WHERE variety_id = $1 AND deleted = FALSE", req.VarietyID).Scan(&count)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_tick表查询失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "查询最小变动价位失败",
+			})
+			return
+		}
+
+		if count > 0 {
+			_, err = tx.Exec("UPDATE variety_tick SET tick = $1 WHERE variety_id = $2", req.Tick, req.VarietyID)
+		} else {
+			_, err = tx.Exec("INSERT INTO variety_tick (variety_id, tick) VALUES ($1, $2)", req.VarietyID, req.Tick)
+		}
+
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_tick表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新最小变动价位失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 variety_tick表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+		)
+	}
+
+	// 如果tick_price不为0，更新variety_tick_price表
+	if req.TickPrice != 0 {
+		// 先查询是否已存在记录
+		var count int
+		err = tx.QueryRow("SELECT COUNT(*) FROM variety_tick_price WHERE variety_id = $1 AND deleted = FALSE", req.VarietyID).Scan(&count)
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_tick_price表查询失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "查询最小变动价值失败",
+			})
+			return
+		}
+
+		if count > 0 {
+			_, err = tx.Exec("UPDATE variety_tick_price SET price = $1 WHERE variety_id = $2", req.TickPrice, req.VarietyID)
+		} else {
+			_, err = tx.Exec("INSERT INTO variety_tick_price (variety_id, price) VALUES ($1, $2)", req.VarietyID, req.TickPrice)
+		}
+
+		if err != nil {
+			tx.Rollback()
+			zap.L().Error("❌ variety_tick_price表更新失败",
+				zap.String("req_id", reqID),
+				zap.String("variety_id", req.VarietyID),
+				zap.Error(err),
+			)
+			c.JSON(http.StatusInternalServerError, UpdateResponse{
+				Success: false,
+				Message: "更新最小变动价值失败",
+			})
+			return
+		}
+		zap.L().Debug("📝 variety_tick_price表更新成功",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+		)
+	}
+
+	// 提交事务
+	if err := tx.Commit(); err != nil {
+		tx.Rollback()
+		zap.L().Error("❌ 事务提交失败",
+			zap.String("req_id", reqID),
+			zap.String("variety_id", req.VarietyID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusInternalServerError, UpdateResponse{
+			Success: false,
+			Message: "数据提交失败，请稍后重试",
+		})
+		return
+	}
+
+	// 记录请求处理耗时
+	duration := time.Since(startTime)
+	zap.L().Info("✅ 品种更新请求处理完成",
+		zap.String("req_id", reqID),
+		zap.String("variety_id", req.VarietyID),
+		zap.Duration("duration", duration),
+	)
+
+	// 返回成功响应
+	c.JSON(http.StatusOK, UpdateResponse{
+		Success: true,
+		Message: "更新成功",
+	})
+}

backend/src/main.go

@@ -3,6 +3,9 @@ package main
 import (
 	"asset_assistant/db"     // 数据库相关操作包
 	"asset_assistant/logger" // 日志工具包
+	"asset_assistant/logic4country"
+	"asset_assistant/logic4currency"
+	"asset_assistant/logic4exchange"
 	"asset_assistant/logic4user"
 
 	// 业务逻辑处理包
@@ -60,6 +63,36 @@ func main() {
 	}
 	zap.L().Info("✅ 用户接口注册完成")
 
+	// 注册国家接口
+	country := r.Group("/country")
+	{
+		country.POST("/create", logic4country.CreateHandler)
+		country.POST("/read", logic4country.ReadHandler)
+		country.POST("/update", logic4country.UpdateHandler)
+		country.POST("/delete", logic4country.DeleteHandler)
+	}
+	zap.L().Info("✅ 国家接口注册完成")
+
+	// 注册交易所接口
+	exchange := r.Group("/exchange")
+	{
+		exchange.POST("/create", logic4exchange.CreateHandler)
+		exchange.POST("/read", logic4exchange.ReadHandler)
+		exchange.POST("/update", logic4exchange.UpdateHandler)
+		exchange.POST("/delete", logic4exchange.DeleteHandler)
+	}
+	zap.L().Info("✅ 交易所接口注册完成")
+
+	// 注册货币接口
+	currency := r.Group("/currency")
+	{
+		currency.POST("/create", logic4currency.CreateHandler)
+		currency.POST("/read", logic4currency.ReadHandler)
+		currency.POST("/update", logic4currency.UpdateHandler)
+		currency.POST("/delete", logic4currency.DeleteHandler)
+	}
+	zap.L().Info("✅ 货币接口注册完成")
+
 	// 记录服务启动日志，监听80端口
 	zap.L().Info("✅ 服务启动在80端口")
 	r.Run(":80")

backend/提示词条.md

@@ -1,34 +0,0 @@
----
-分析这个项目，在 create.go  中完成以下需求：
-
-1、接收 name，code 两个参数。
-2、确认提交的 name，code 两个参数不能为空，如果有空，则返回提示。
-3、第二步通过后，在 country 表中，通过: "INSERT INTO country DEFAULT VALUES RETURNING id" 获得ID。
-4、通过 3 中的 id，开启事务保存到 name 和 code 的表中。
----
-分析这个项目，在 delete.go 中完成以下需求：
-
-1、接收 country_id 参数。
-2、确认提交的 country_id 参数不能为空，如果有空，则返回提示。
-3、开启事务处理以下逻辑：
-3.1、把 country 中，country.id==req.country_id 的 deleted 字段更新为true。
-3.2、把 name 中，name.country_id==req.country_id 的 deleted 字段更新为true。
-3.3、把 code code.country_id==req.country_id 的 deleted 字段更新为true。
----
-分析这个项目，在 update.go 中完成以下需求：
-
-1、接收 country_id,name，code 参数。
-2、确认提交的 country_id 参数有不能为空，如果为空，则返回提示。
-3、确认提交的 name，code 两个参数，必须有一个不能为空，如果都为空，则返回提示。
-4、如果 name 不为空，开启事务保存到 name 中。
-5、如果 code 不为空，开启事务保存到 code 中。
-6、如果 name，code 都不为空，开启事务保存到 name，code 中。
----
-分析这个项目，在 read.go 中完成以下需求：
-
-1、接收 country_id，name，code，page，page_size 参数。
-2、确认提交的 country_id，name，code 必须有一个不能为空，如果都为空，则返回提示。
-3、确认提交的 page，page_size, 如果为空，则 page 默认为 1，page_size 默认为20。
-3、根据参数去 country_info_view 中查找数据，并做分页查询。
-4、将查找的数据分页返回。
----

frontend/asset_assistant/lib/main.dart

@@ -1,3 +1,4 @@
+import 'package:asset_assistant/pages/country_page.dart';
 import 'package:asset_assistant/pages/exchange_add_page.dart';
 import 'package:asset_assistant/pages/exchange_page.dart';
 import 'package:asset_assistant/pages/home_page.dart';
@@ -27,8 +28,9 @@ class MyApp extends StatelessWidget {
       routes: {
         '/login': (context) => const LoginPage(),
         '/home': (context) => HomePage(),
+        '/country': (context) => CountryPage(),
         '/exchange': (context) => ExchangePage(),
-        '/exchange/add': (context) => AddExchangePage(), // 推荐首选
+        '/exchange/add': (context) => AddExchangePage(),
       },
       theme: ThemeData(
         // 金融暗夜风格主题配置

frontend/asset_assistant/lib/pages/country_add_page.dart

@@ -0,0 +1,238 @@
+import 'package:asset_assistant/utils/host_utils.dart';
+import 'package:flutter/material.dart';
+import 'package:dio/dio.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class AddCountryPage extends StatefulWidget {
+  const AddCountryPage({super.key});
+
+  @override
+  State<AddCountryPage> createState() => _AddCountryPageState();
+}
+
+class _AddCountryPageState extends State<AddCountryPage> {
+  // 输入控制器 - 新增国旗控制器
+  final TextEditingController _nameController = TextEditingController();
+  final TextEditingController _codeController = TextEditingController();
+  final TextEditingController _flagController = TextEditingController();
+
+  // 加载状态
+  bool _isLoading = false;
+
+  // 表单验证键
+  final _formKey = GlobalKey<FormState>();
+
+  // 创建国家 - 调整请求数据
+  Future<void> _createCountry() async {
+    if (!_formKey.currentState!.validate()) {
+      return;
+    }
+
+    setState(() {
+      _isLoading = true;
+    });
+
+    try {
+      // 获取用户ID（保持不变）
+      final prefs = await SharedPreferences.getInstance();
+      final userId = prefs.getString('user_id');
+      if (userId == null) {
+        if (mounted) {
+          _showDialog('错误', '请先登录');
+          Navigator.pushReplacementNamed(context, '/login');
+        }
+        return;
+      }
+
+      // 准备请求数据 - 新增flag字段
+      final baseUrl = HostUtils().currentHost;
+      const path = '/country/create';
+      final url = '$baseUrl$path';
+
+      final requestData = {
+        'name': _nameController.text.trim(),
+        'code': _codeController.text.trim(),
+        'flag': _flagController.text.trim(), // 新增国旗参数
+      };
+
+      // 发送请求（保持不变）
+      final dio = Dio();
+      final response = await dio.post(
+        url,
+        data: requestData,
+        options: Options(headers: {'Content-Type': 'application/json'}),
+      );
+
+      // 处理响应（保持不变）
+      if (response.statusCode == 200) {
+        final result = response.data;
+        if (result['success'] == true) {
+          if (mounted) {
+            _showDialog('成功', '国家创建成功', () {
+              Navigator.pop(context, true); // 返回并通知上一页刷新
+            });
+          }
+        } else {
+          if (mounted) {
+            _showDialog('失败', result['message'] ?? '创建失败，请重试');
+          }
+        }
+      } else {
+        if (mounted) {
+          // 处理400错误时获取服务器返回的具体消息
+          String errorMessage = '服务器响应异常: ${response.statusCode}';
+          if (response.statusCode == 400 && response.data != null) {
+            errorMessage = response.data['message'] ?? errorMessage;
+          }
+          _showDialog('错误', errorMessage);
+        }
+      }
+    } on DioException catch (e) {
+      // 异常处理（优化错误信息提取）
+      String errorMessage = '网络请求失败';
+      if (e.response != null) {
+        // 从响应数据中提取错误信息
+        if (e.response?.data != null && e.response?.data['message'] != null) {
+          errorMessage = e.response?.data['message'];
+        } else {
+          errorMessage = '请求失败: ${e.response?.statusCode}';
+        }
+      } else if (e.type == DioExceptionType.connectionTimeout) {
+        errorMessage = '连接超时，请检查网络';
+      } else if (e.type == DioExceptionType.connectionError) {
+        errorMessage = '网络连接错误';
+      }
+
+      if (mounted) {
+        _showDialog('错误', errorMessage);
+      }
+    } catch (e) {
+      if (mounted) {
+        _showDialog('错误', '发生未知错误: $e');
+      }
+    } finally {
+      if (mounted) {
+        setState(() {
+          _isLoading = false;
+        });
+      }
+    }
+  }
+
+  // 显示对话框（保持不变）
+  void _showDialog(String title, String content, [VoidCallback? onConfirm]) {
+    showDialog(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: Text(title),
+        content: Text(content),
+        actions: [
+          TextButton(
+            onPressed: () {
+              Navigator.pop(context);
+              onConfirm?.call();
+            },
+            child: const Text('确定'),
+          ),
+        ],
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('新增国家'),
+        centerTitle: true,
+        elevation: 4,
+        shadowColor: Colors.black12,
+        backgroundColor: theme.colorScheme.surfaceContainerHighest,
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back),
+          onPressed: () {
+            Navigator.of(context).pop();
+          },
+        ),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.save),
+            onPressed: _isLoading ? null : _createCountry,
+          ),
+        ],
+      ),
+      body: SafeArea(
+        child: Container(
+          color: theme.colorScheme.surface,
+          width: double.infinity,
+          padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
+          child: Form(
+            key: _formKey,
+            child: Column(
+              children: [
+                // 国家名称输入框（保持不变）
+                TextFormField(
+                  controller: _nameController,
+                  style: TextStyle(color: theme.colorScheme.onSurface),
+                  decoration: InputDecoration(
+                    labelText: '国家名称',
+                    hintText: '请输入国家名称',
+                    prefixIcon: Icon(
+                      Icons.account_balance,
+                      color: theme.colorScheme.secondary,
+                    ),
+                  ),
+                  validator: (value) {
+                    if (value == null || value.trim().isEmpty) {
+                      return '请输入国家名称';
+                    }
+                    return null;
+                  },
+                ),
+                const SizedBox(height: 24),
+
+                // 国家代码输入框（保持不变）
+                TextFormField(
+                  controller: _codeController,
+                  style: TextStyle(color: theme.colorScheme.onSurface),
+                  decoration: InputDecoration(
+                    labelText: '国家代码',
+                    hintText: '请输入国家代码',
+                    prefixIcon: Icon(
+                      Icons.code,
+                      color: theme.colorScheme.secondary,
+                    ),
+                  ),
+                  validator: (value) {
+                    if (value == null || value.trim().isEmpty) {
+                      return '请输入国家代码';
+                    }
+                    return null;
+                  },
+                ),
+                const SizedBox(height: 24),
+
+                // 新增国旗输入框
+                TextFormField(
+                  controller: _flagController,
+                  style: TextStyle(color: theme.colorScheme.onSurface),
+                  decoration: InputDecoration(
+                    labelText: '国旗emoji',
+                    hintText: '请输入国旗图片emoji',
+                    prefixIcon: Icon(
+                      Icons.flag,
+                      color: theme.colorScheme.secondary,
+                    ),
+                  ),
+                  // 国旗为可选字段，不添加验证器
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

frontend/asset_assistant/lib/pages/country_page.dart

@@ -0,0 +1,439 @@
+import 'package:asset_assistant/pages/country_add_page.dart';
+import 'package:asset_assistant/utils/host_utils.dart';
+import 'package:flutter/material.dart';
+import 'package:dio/dio.dart';
+
+// 国家数据模型（flag字段存储emoji）
+class Country {
+  final String countryId;
+  final String name;
+  final String code;
+  final String? flag; // 国旗字段，存储emoji
+
+  Country({
+    required this.countryId,
+    required this.name,
+    required this.code,
+    this.flag,
+  });
+
+  // 从JSON构建对象
+  factory Country.fromJson(Map<String, dynamic> json) {
+    return Country(
+      countryId: json['country_id'],
+      name: json['name'],
+      code: json['code'],
+      flag: json['flag'], // 解析emoji字段
+    );
+  }
+}
+
+// 接口响应模型
+class CountryResponse {
+  final bool success;
+  final String message;
+  final CountryData data;
+
+  CountryResponse({
+    required this.success,
+    required this.message,
+    required this.data,
+  });
+
+  factory CountryResponse.fromJson(Map<String, dynamic> json) {
+    return CountryResponse(
+      success: json['success'],
+      message: json['message'],
+      data: CountryData.fromJson(json['data']),
+    );
+  }
+}
+
+// 响应数据模型
+class CountryData {
+  final int total;
+  final int page;
+  final int pageSize;
+  final List<Country> items;
+
+  CountryData({
+    required this.total,
+    required this.page,
+    required this.pageSize,
+    required this.items,
+  });
+
+  factory CountryData.fromJson(Map<String, dynamic> json) {
+    var itemsList = json['items'] as List? ?? [];
+    List<Country> items = itemsList.map((i) => Country.fromJson(i)).toList();
+
+    return CountryData(
+      total: json['total'],
+      page: json['page'],
+      pageSize: json['page_size'],
+      items: items,
+    );
+  }
+}
+
+class CountryPage extends StatefulWidget {
+  const CountryPage({super.key});
+
+  @override
+  State<CountryPage> createState() => _CountryPageState();
+}
+
+class _CountryPageState extends State<CountryPage> {
+  List<Country> _countries = [];
+  bool _isLoading = true;
+  String? _errorMessage;
+  int _currentPage = 1;
+  final int _pageSize = 20;
+  bool _hasMoreData = true;
+  late ScrollController _scrollController;
+
+  @override
+  void initState() {
+    super.initState();
+    _scrollController = ScrollController();
+    _scrollController.addListener(_onScroll);
+    _fetchCountries();
+  }
+
+  @override
+  void dispose() {
+    _scrollController.dispose();
+    super.dispose();
+  }
+
+  void _onScroll() {
+    if (_isLoading) return;
+    if (_hasMoreData &&
+        _scrollController.position.pixels >=
+            _scrollController.position.maxScrollExtent - 200) {
+      _loadMore();
+    }
+  }
+
+  Future<void> _fetchCountries({bool isRefresh = false}) async {
+    if (isRefresh) {
+      setState(() {
+        _currentPage = 1;
+        _hasMoreData = true;
+      });
+    }
+
+    if (!_hasMoreData && !isRefresh) return;
+
+    setState(() {
+      _isLoading = true;
+    });
+
+    try {
+      final baseUrl = HostUtils().currentHost;
+      final path = '/country/read';
+      final url = '$baseUrl$path';
+      debugPrint('====== 开始请求国家列表 ======');
+      debugPrint('请求URL: $url');
+      debugPrint('请求参数: page=$_currentPage, page_size=$_pageSize');
+
+      final dio = Dio();
+      final response = await dio.post(
+        url,
+        data: {
+          'page': _currentPage,
+          'page_size': _pageSize,
+          'name': '',
+          'code': '',
+          'country_id': '',
+          'flag': '',
+        },
+        options: Options(
+          headers: {'Content-Type': 'application/x-www-form-urlencoded'},
+        ),
+      );
+
+      debugPrint('请求成功，状态码: ${response.statusCode}');
+      debugPrint('响应数据: ${response.data}');
+
+      if (response.statusCode == 200) {
+        final CountryResponse countryResponse = CountryResponse.fromJson(
+          response.data,
+        );
+
+        if (countryResponse.success) {
+          setState(() {
+            if (isRefresh) {
+              _countries = countryResponse.data.items;
+            } else {
+              _countries.addAll(countryResponse.data.items);
+            }
+
+            _hasMoreData = _countries.length < countryResponse.data.total;
+            _currentPage++;
+            _errorMessage = null;
+          });
+          debugPrint('数据解析成功，当前列表总数: ${_countries.length}');
+          debugPrint('是否还有更多数据: $_hasMoreData，下一页: $_currentPage');
+        } else {
+          setState(() {
+            _errorMessage = countryResponse.message;
+          });
+          debugPrint('接口返回失败: ${countryResponse.message}');
+        }
+      } else {
+        setState(() {
+          _errorMessage = '服务器响应异常: ${response.statusCode}';
+        });
+        debugPrint('服务器响应异常: ${response.statusCode}');
+      }
+    } on DioException catch (e) {
+      String errorMsg = '网络请求失败';
+      if (e.response != null) {
+        errorMsg = '请求失败: ${e.response?.statusCode}';
+        debugPrint(
+          '请求错误，状态码: ${e.response?.statusCode}，响应数据: ${e.response?.data}',
+        );
+      } else if (e.type == DioExceptionType.connectionTimeout) {
+        errorMsg = '连接超时，请检查网络';
+        debugPrint('连接超时: ${e.message}');
+      } else if (e.type == DioExceptionType.connectionError) {
+        errorMsg = '网络连接错误';
+        debugPrint('网络连接错误: ${e.message}');
+      } else {
+        debugPrint('Dio异常: ${e.type}，消息: ${e.message}');
+      }
+      setState(() {
+        _errorMessage = errorMsg;
+      });
+    } catch (e) {
+      setState(() {
+        _errorMessage = '发生未知错误: $e';
+      });
+      debugPrint('未知错误: $e');
+    } finally {
+      setState(() {
+        _isLoading = false;
+      });
+      debugPrint('====== 请求结束 ======\n');
+    }
+  }
+
+  Future<void> _refresh() async {
+    debugPrint('触发下拉刷新');
+    await _fetchCountries(isRefresh: true);
+  }
+
+  void _loadMore() {
+    if (!_isLoading && _hasMoreData) {
+      debugPrint('触发加载更多，当前页: $_currentPage');
+      _fetchCountries();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('国家列表'),
+        centerTitle: true,
+        elevation: 4,
+        shadowColor: Colors.black12,
+        backgroundColor: theme.colorScheme.surfaceContainerHighest,
+        leading: IconButton(
+          icon: const Icon(Icons.arrow_back),
+          onPressed: () {
+            Navigator.of(context).pop();
+          },
+        ),
+        actions: [
+          IconButton(
+            icon: const Icon(Icons.add),
+            onPressed: () async {
+              debugPrint('点击新增按钮，跳转到新增页面');
+              final result = await Navigator.push(
+                context,
+                MaterialPageRoute(builder: (context) => const AddCountryPage()),
+              );
+              if (result == true) {
+                debugPrint('从新增页面返回，刷新列表数据');
+                _fetchCountries(isRefresh: true);
+              }
+            },
+          ),
+        ],
+      ),
+      body: SafeArea(child: _buildBody(theme)),
+    );
+  }
+
+  Widget _buildBody(ThemeData theme) {
+    // 加载中且列表为空
+    if (_isLoading && _countries.isEmpty) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    // 有错误信息且列表为空
+    if (_errorMessage != null && _countries.isEmpty) {
+      return Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Text(
+              _errorMessage!,
+              style: TextStyle(color: theme.colorScheme.error),
+            ),
+            const SizedBox(height: 16),
+            ElevatedButton(
+              onPressed: () => _fetchCountries(isRefresh: true),
+              child: const Text('重试'),
+            ),
+          ],
+        ),
+      );
+    }
+
+    // 无数据状态（列表为空且无错误）
+    if (_countries.isEmpty) {
+      return Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            // 无数据背景图标
+            Icon(
+              Icons.flag_outlined,
+              size: 120,
+              color: theme.colorScheme.onSurface.withOpacity(0.1),
+            ),
+            const SizedBox(height: 24),
+            // 无数据提示文字
+            Text(
+              '暂无国家数据',
+              style: theme.textTheme.titleLarge?.copyWith(
+                color: theme.colorScheme.onSurface.withOpacity(0.5),
+              ),
+            ),
+            const SizedBox(height: 16),
+            // 刷新按钮
+            IconButton(
+              icon: Icon(
+                Icons.refresh,
+                size: 28,
+                color: theme.colorScheme.primary,
+              ),
+              onPressed: () => _fetchCountries(isRefresh: true),
+              tooltip: '刷新数据',
+            ),
+          ],
+        ),
+      );
+    }
+
+    // 正常列表展示
+    return RefreshIndicator(
+      onRefresh: _refresh,
+      child: ListView.builder(
+        padding: const EdgeInsets.symmetric(vertical: 8),
+        itemCount: _countries.length + (_hasMoreData ? 1 : 0),
+        itemBuilder: (context, index) {
+          if (index < _countries.length) {
+            final country = _countries[index];
+            return _buildCountryItem(theme, country);
+          } else {
+            return Padding(
+              padding: const EdgeInsets.symmetric(vertical: 16),
+              child: Center(
+                child: _isLoading
+                    ? const CircularProgressIndicator()
+                    : const Text('没有更多数据了'),
+              ),
+            );
+          }
+        },
+        controller: _scrollController,
+      ),
+    );
+  }
+
+  Widget _buildCountryItem(ThemeData theme, Country country) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Material(
+          color: Colors.transparent,
+          child: InkWell(
+            onTap: () {
+              // 可以添加点击事件
+            },
+            borderRadius: BorderRadius.circular(8),
+            splashColor: theme.colorScheme.primary.withAlpha(26),
+            highlightColor: theme.colorScheme.primary.withAlpha(13),
+            child: Container(
+              height: 64,
+              padding: const EdgeInsets.symmetric(horizontal: 16),
+              child: Row(
+                children: [
+                  // 国旗Emoji展示区域
+                  Container(
+                    width: 40,
+                    height: 40,
+                    decoration: BoxDecoration(
+                      color: theme.colorScheme.surfaceContainerHighest,
+                      borderRadius: BorderRadius.circular(8),
+                    ),
+                    child: Center(
+                      child: Text(
+                        // 显示国旗emoji，如果没有则显示默认图标
+                        country.flag != null && country.flag!.isNotEmpty
+                            ? country.flag!
+                            : '',
+                        style: const TextStyle(fontSize: 24), // 适当调整emoji大小
+                      ),
+                    ),
+                  ),
+                  const SizedBox(width: 16),
+                  Expanded(
+                    child: Column(
+                      mainAxisAlignment: MainAxisAlignment.center,
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text(
+                          country.name,
+                          style: theme.textTheme.titleMedium?.copyWith(
+                            fontWeight: FontWeight.w500,
+                            color: theme.colorScheme.onSurface,
+                          ),
+                        ),
+                        const SizedBox(height: 4),
+                        Text(
+                          '代码: ${country.code}',
+                          style: theme.textTheme.bodySmall?.copyWith(
+                            color: theme.colorScheme.onSurfaceVariant,
+                          ),
+                        ),
+                      ],
+                    ),
+                  ),
+                  Icon(
+                    Icons.arrow_forward_ios,
+                    size: 18,
+                    color: theme.hintColor,
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+        Divider(
+          height: 1,
+          thickness: 1,
+          indent: 72,
+          endIndent: 16,
+          color: theme.dividerColor,
+        ),
+      ],
+    );
+  }
+}

frontend/asset_assistant/lib/pages/exchange_add_page.dart

@@ -1,3 +1,4 @@
+import 'package:asset_assistant/utils/host_utils.dart';
 import 'package:flutter/material.dart';
 import 'package:dio/dio.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -43,8 +44,7 @@ class _AddExchangePageState extends State<AddExchangePage> {
       }
 
       // 准备请求数据
-      // const baseUrl = 'https://api.fishestlife.com';
+      final baseUrl = HostUtils().currentHost;
-      const baseUrl = 'http://localhost:20010';
       const path = '/exchange/create';
       final url = '$baseUrl$path';
 

frontend/asset_assistant/lib/pages/home_page.dart

@@ -1,11 +1,11 @@
 import 'package:flutter/material.dart';
-import 'package:asset_assistant/pages/exchange_page.dart'; // 导入ExchangePage
 
 class HomePage extends StatelessWidget {
   // 功能列表数据 - 为交易所项添加路由信息
   final List<Map<String, dynamic>> features = [
     {'icon': Icons.bar_chart, 'title': '数据分析', 'route': null},
     {'icon': Icons.balance, 'title': '交易', 'route': null},
+    {'icon': Icons.flag_circle, 'title': '国家', 'route': '/country'},
     {'icon': Icons.account_balance, 'title': '交易所', 'route': '/exchange'},
     {'icon': Icons.branding_watermark, 'title': '品种', 'route': null},
   ];
@@ -115,14 +115,12 @@ class HomePage extends StatelessWidget {
         onTap: () {
           // 点击事件处理 - 如果有路由信息则导航
           if (route != null && context.mounted) {
-            Navigator.push(
+            // 使用路由路径进行导航
-              context,
+            Navigator.pushNamed(context, route);
-              MaterialPageRoute(builder: (context) => ExchangePage()),
-            );
           }
         },
         borderRadius: BorderRadius.circular(8),
-        splashColor: theme.colorScheme.primary.withAlpha(26), // 修改为withAlpha更兼容
+        splashColor: theme.colorScheme.primary.withAlpha(26),
         highlightColor: theme.colorScheme.primary.withAlpha(13),
         child: Container(
           height: 64,

frontend/asset_assistant/lib/pages/login_page.dart

@@ -1,4 +1,5 @@
 import 'package:asset_assistant/pages/home_page.dart';
+import 'package:asset_assistant/utils/host_utils.dart';
 import 'package:flutter/material.dart';
 import 'package:dio/dio.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -40,7 +41,7 @@ class _LoginPageState extends State<LoginPage> {
 
     try {
       // 构建请求URL
-      const baseUrl = 'https://api.fishestlife.com';
+      final baseUrl = HostUtils().currentHost;
       const path = '/user/login';
       final url = '$baseUrl$path';
       debugPrint('请求URL: $url');

frontend/asset_assistant/lib/utils/host_utils.dart

@@ -0,0 +1,22 @@
+// Host
+class HostUtils {
+  // 单例实例
+  static final HostUtils _instance = HostUtils._internal();
+
+  // 工厂构造函数，确保全局唯一实例
+  factory HostUtils() => _instance;
+
+  // 私有构造函数
+  HostUtils._internal();
+
+  // 根据运行环境获取当前Host
+  String get currentHost {
+    // 区分debug和release环境
+    bool isDebug = false;
+    assert(() {
+      isDebug = true;
+      return true;
+    }());
+    return isDebug ? 'http://127.0.0.1:20000' : 'https://api.fishestlife.com';
+  }
+}