Add internal/handler/response.go

internal/handler/response.go

@@ -0,0 +1,49 @@
+package handler
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// Response 统一响应结构
+type Response struct {
+	Code    int         `json:"code"`    // 0=成功，非0=失败
+	Message string      `json:"message"` // 提示信息
+	Data    interface{} `json:"data"`    // 业务数据
+}
+
+// Success 成功响应
+func Success(c *gin.Context, data interface{}) {
+	c.JSON(http.StatusOK, Response{Code: 0, Message: "success", Data: data})
+}
+
+// SuccessMsg 成功响应（仅消息，无数据）
+func SuccessMsg(c *gin.Context, msg string) {
+	c.JSON(http.StatusOK, Response{Code: 0, Message: msg, Data: nil})
+}
+
+// Fail 失败响应
+func Fail(c *gin.Context, httpCode int, msg string) {
+	c.JSON(httpCode, Response{Code: 1, Message: msg, Data: nil})
+}
+
+// FailBadRequest 400 错误
+func FailBadRequest(c *gin.Context, msg string) {
+	Fail(c, http.StatusBadRequest, msg)
+}
+
+// FailUnauthorized 401 未授权
+func FailUnauthorized(c *gin.Context, msg string) {
+	Fail(c, http.StatusUnauthorized, msg)
+}
+
+// FailForbidden 403 禁止访问
+func FailForbidden(c *gin.Context, msg string) {
+	Fail(c, http.StatusForbidden, msg)
+}
+
+// FailInternal 500 服务器内部错误
+func FailInternal(c *gin.Context, msg string) {
+	Fail(c, http.StatusInternalServerError, msg)
+}