A:增加HTTP基础功能的访问和HTTP模板

rear/internal/handler/user.go

@@ -0,0 +1,138 @@
+package handler
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"rear/internal/model"
+)
+
+// 全局变量
+var (
+	Users      []model.User // 模拟数据存储
+	userNextID = 1
+)
+
+// DeleteUser 删除用户
+func DeleteUser(c *gin.Context) {
+	id := c.Param("id")
+
+	for i, user := range Users {
+		if fmt.Sprintf("%d", user.ID) == id {
+			Users = append(Users[:i], Users[i+1:]...)
+			c.JSON(http.StatusOK, model.Response{
+				Code:    http.StatusOK,
+				Message: "User deleted successfully",
+			})
+			return
+		}
+	}
+
+	c.JSON(http.StatusNotFound, model.Response{
+		Code:    http.StatusNotFound,
+		Message: "User not found",
+	})
+}
+
+// GetUserByID 根据ID获取用户
+func GetUserByID(c *gin.Context) {
+	id := c.Param("id")
+
+	for _, user := range Users {
+		if fmt.Sprintf("%d", user.ID) == id {
+			c.JSON(http.StatusOK, model.Response{
+				Code:    http.StatusOK,
+				Message: "Success",
+				Data:    user,
+			})
+			return
+		}
+	}
+
+	c.JSON(http.StatusNotFound, model.Response{
+		Code:    http.StatusNotFound,
+		Message: "User not found",
+	})
+}
+
+// InitSampleData 初始化示例数据
+func InitSampleData() {
+	Users = []model.User{
+		{ID: 1, Name: "John Doe", Email: "john@example.com"},
+		{ID: 2, Name: "Jane Smith", Email: "jane@example.com"},
+	}
+	userNextID = 3
+}
+
+// UpdateUser 更新用户
+func UpdateUser(c *gin.Context) {
+	id := c.Param("id")
+
+	for i, user := range Users {
+		if fmt.Sprintf("%d", user.ID) == id {
+			var updatedUser model.User
+			if err := c.ShouldBindJSON(&updatedUser); err != nil {
+				c.JSON(http.StatusBadRequest, model.Response{
+					Code:    http.StatusBadRequest,
+					Message: "Invalid request body",
+				})
+				return
+			}
+
+			updatedUser.ID = user.ID
+			Users[i] = updatedUser
+
+			c.JSON(http.StatusOK, model.Response{
+				Code:    http.StatusOK,
+				Message: "User updated successfully",
+				Data:    updatedUser,
+			})
+			return
+		}
+	}
+
+	c.JSON(http.StatusNotFound, model.Response{
+		Code:    http.StatusNotFound,
+		Message: "User not found",
+	})
+}
+
+// GetUsers 获取所有用户
+func GetUsers(c *gin.Context) {
+	c.JSON(http.StatusOK, model.Response{
+		Code:    http.StatusOK,
+		Message: "Success",
+		Data:    Users,
+	})
+}
+
+// CreateUser 创建用户
+func CreateUser(c *gin.Context) {
+	var user model.User
+	if err := c.ShouldBindJSON(&user); err != nil {
+		c.JSON(http.StatusBadRequest, model.Response{
+			Code:    http.StatusBadRequest,
+			Message: "Invalid request body",
+		})
+		return
+	}
+
+	// 简单验证
+	if user.Name == "" || user.Email == "" {
+		c.JSON(http.StatusBadRequest, model.Response{
+			Code:    http.StatusBadRequest,
+			Message: "Name and email are required",
+		})
+		return
+	}
+
+	user.ID = userNextID
+	userNextID++
+	Users = append(Users, user)
+
+	c.JSON(http.StatusCreated, model.Response{
+		Code:    http.StatusCreated,
+		Message: "User created successfully",
+		Data:    user,
+	})
+}