更新前后端代码

go/internal/utils/response.go

@@ -0,0 +1,96 @@
+package utils
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+)
+
+// 统一响应码
+const (
+	CodeSuccess      = 0
+	CodeError        = 1
+	CodeParamError   = 400
+	CodeUnauthorized = 401
+	CodeForbidden    = 403
+	CodeNotFound     = 404
+	CodeServerErr    = 500
+)
+
+// Response 统一响应结构
+type Response struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data,omitempty"`
+}
+
+// PageData 分页响应结构
+type PageData struct {
+	List     interface{} `json:"list"`
+	Total    int64       `json:"total"`
+	Page     int         `json:"page"`
+	PageSize int         `json:"page_size"`
+}
+
+// OK 成功响应
+func OK(c *gin.Context, data interface{}) {
+	c.JSON(http.StatusOK, Response{Code: CodeSuccess, Message: "success", Data: data})
+}
+
+// OKMsg 成功响应(仅消息)
+func OKMsg(c *gin.Context, msg string) {
+	c.JSON(http.StatusOK, Response{Code: CodeSuccess, Message: msg})
+}
+
+// OKPage 分页成功响应
+func OKPage(c *gin.Context, list interface{}, total int64, page, pageSize int) {
+	c.JSON(http.StatusOK, Response{
+		Code:    CodeSuccess,
+		Message: "success",
+		Data:    PageData{List: list, Total: total, Page: page, PageSize: pageSize},
+	})
+}
+
+// Fail 失败响应
+func Fail(c *gin.Context, httpCode, code int, msg string) {
+	c.JSON(httpCode, Response{Code: code, Message: msg})
+}
+
+// FailMsg 默认400失败响应
+func FailMsg(c *gin.Context, msg string) {
+	Fail(c, http.StatusBadRequest, CodeError, msg)
+}
+
+// Unauthorized 401
+func Unauthorized(c *gin.Context, msg string) {
+	c.AbortWithStatusJSON(http.StatusUnauthorized, Response{Code: CodeUnauthorized, Message: msg})
+}
+
+// Forbidden 403
+func Forbidden(c *gin.Context, msg string) {
+	c.AbortWithStatusJSON(http.StatusForbidden, Response{Code: CodeForbidden, Message: msg})
+}
+
+// NotFound 404
+func NotFound(c *gin.Context, msg string) {
+	c.JSON(http.StatusNotFound, Response{Code: CodeNotFound, Message: msg})
+}
+
+// ServerError 500
+func ServerError(c *gin.Context, msg string) {
+	c.JSON(http.StatusInternalServerError, Response{Code: CodeServerErr, Message: msg})
+}
+
+// ParsePage 解析分页参数
+func ParsePage(c *gin.Context) (page, pageSize int) {
+	page = 1
+	pageSize = 20
+	if v, err := strconv.Atoi(c.Query("page")); err == nil && v > 0 {
+		page = v
+	}
+	if v, err := strconv.Atoi(c.Query("page_size")); err == nil && v > 0 && v <= 100 {
+		pageSize = v
+	}
+	return
+}