重命名 api 文件夹为 backend

backend/api/handlers/health.go

@@ -0,0 +1,64 @@
+package handlers
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+)
+
+// HealthResponse 健康检查响应
+type HealthResponse struct {
+	Status   string            `json:"status"`
+	Time     string            `json:"time"`
+	Services map[string]string `json:"services"`
+}
+
+// HealthCheck 健康检查
+func (h *Handler) HealthCheck(c *gin.Context) {
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+
+	response := HealthResponse{
+		Status:   "ok",
+		Time:     time.Now().Format(time.RFC3339),
+		Services: make(map[string]string),
+	}
+
+	// 检查数据库连接
+	sqlDB, err := h.cfg.DB.DB()
+	if err != nil {
+		response.Services["database"] = "error: " + err.Error()
+		response.Status = "degraded"
+	} else {
+		if err := sqlDB.PingContext(ctx); err != nil {
+			response.Services["database"] = "error: " + err.Error()
+			response.Status = "degraded"
+		} else {
+			response.Services["database"] = "ok"
+		}
+	}
+
+	// 检查 Redis 连接
+	if err := h.cfg.Redis.Ping(ctx).Err(); err != nil {
+		response.Services["redis"] = "error: " + err.Error()
+		response.Status = "degraded"
+	} else {
+		response.Services["redis"] = "ok"
+	}
+
+	if response.Status == "ok" {
+		c.JSON(http.StatusOK, response)
+	} else {
+		c.JSON(http.StatusServiceUnavailable, response)
+	}
+}
+
+// Ping 简单的 ping 测试
+func (h *Handler) Ping(c *gin.Context) {
+	c.JSON(http.StatusOK, gin.H{
+		"message": "pong",
+		"time":    time.Now().Format(time.RFC3339),
+	})
+}