diff --git a/backend/src/logic4country/read.go b/backend/src/logic4country/read.go
index bb93583..6f84d11 100644
--- a/backend/src/logic4country/read.go
+++ b/backend/src/logic4country/read.go
@@ -76,19 +76,6 @@ func ReadHandler(c *gin.Context) {
 		return
 	}
 
-	// 验证查询条件至少有一个不为空
-	if req.CountryID == "" && req.Name == "" && req.Code == "" {
-		zap.L().Warn("⚠️ 请求参数验证失败",
-			zap.String("req_id", reqID),
-			zap.String("reason", "country_id、name、code不能同时为空"),
-		)
-		c.JSON(http.StatusBadRequest, ReadResponse{
-			Success: false,
-			Message: "请求参数错误：country_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 {
diff --git a/frontend/asset_assistant/lib/pages/country_page.dart b/frontend/asset_assistant/lib/pages/country_page.dart
index 12c7727..41ade2b 100644
--- a/frontend/asset_assistant/lib/pages/country_page.dart
+++ b/frontend/asset_assistant/lib/pages/country_page.dart
@@ -109,14 +109,17 @@ class _CountryPageState extends State<CountryPage> {
       final baseUrl = HostUtils().currentHost;
       final path = '/country/read';
       final url = '$baseUrl$path';
+      // 打印请求基本信息
+      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.get(
+      final response = await dio.post(
         url,
         queryParameters: {
           'page': _currentPage,
           'page_size': _pageSize,
-          // 为空时查询所有国家
           'name': '',
           'code': '',
           'country_id': '',
@@ -124,6 +127,10 @@ class _CountryPageState extends State<CountryPage> {
         options: Options(headers: {'Content-Type': 'application/json'}),
       );
 
+      // 打印响应状态
+      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,
@@ -142,24 +149,36 @@ class _CountryPageState extends State<CountryPage> {
             _currentPage++;
             _errorMessage = null;
           });
+          // 打印数据处理结果
+          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;
@@ -168,21 +187,25 @@ class _CountryPageState extends State<CountryPage> {
       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');
     }
   }
 
   // 下拉刷新
   Future<void> _refresh() async {
+    debugPrint('触发下拉刷新');
     await _fetchCountries(isRefresh: true);
   }
 
   // 加载更多
   void _loadMore() {
     if (!_isLoading && _hasMoreData) {
+      debugPrint('触发加载更多，当前页: $_currentPage');
       _fetchCountries();
     }
   }
@@ -208,12 +231,14 @@ class _CountryPageState extends State<CountryPage> {
           IconButton(
             icon: const Icon(Icons.add),
             onPressed: () async {
+              debugPrint('点击新增按钮，跳转到新增页面');
               // 跳转到新增页面，返回时刷新列表
               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);
               }
             },
diff --git a/frontend/asset_assistant/lib/pages/home_page.dart b/frontend/asset_assistant/lib/pages/home_page.dart
index f898008..a0e103f 100644
--- a/frontend/asset_assistant/lib/pages/home_page.dart
+++ b/frontend/asset_assistant/lib/pages/home_page.dart
@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:asset_assistant/pages/exchange_page.dart';
 
 class HomePage extends StatelessWidget {
   // 功能列表数据 - 为交易所项添加路由信息
@@ -117,7 +116,7 @@ class HomePage extends StatelessWidget {
           // 点击事件处理 - 如果有路由信息则导航
           if (route != null && context.mounted) {
             // 使用路由路径进行导航
-            Navigator.pushNamed(context, route!);
+            Navigator.pushNamed(context, route);
           }
         },
         borderRadius: BorderRadius.circular(8),