gin+gorm 用户服务

package main

import (
	"fmt"
	"github.com/gin-gonic/gin"
	"github.com/jinzhu/gorm"
	_ "github.com/jinzhu/gorm/dialects/mysql"
)

var db *gorm.DB
var err error

type User struct {
	ID int `json:id`
	Name string `json:"name"`
	Age int `json:"age"`
	Sex int `json:"sex"`
}

func main()  {

	db,_ = gorm.Open("mysql","root:root@tcp(192.168.40.10:3306)/wang?charset=utf8&parseTime=True&loc=Local")
	
	if err != nil{
		fmt.Println(err)
		return
	} else {
		fmt.Println("connect success")
	}
	defer db.Close()

	db.AutoMigrate(&User{})

	r := gin.Default()

	// 用户管理
	r.GET("/",getUserList)
	r.GET("/user/:id",getUserInfo)
	r.GET("/users",getUserList)
	r.POST("/user",addUser)
	r.PUT("/user/:id",editUser)
	r.DELETE("/user/:id",deleteUser)

	r.Run(":8080")
}

// 用户信息
func getUserInfo(c *gin.Context)  {
	var user User
	id := c.Params.ByName("id")
	if err := db.Where("id = ?",id).First(&user).Error; err != nil{
		c.AbortWithStatus(404)
		fmt.Println(err)
	} else {
		c.JSON(200,user)
	}
}

// 用户列表
func getUserList(c *gin.Context)  {
	var users []User
	if err := db.Find(&users).Error;err!=nil{
		c.AbortWithStatus(404)
		fmt.Println(err)
	} else {
		c.JSON(200,users)
	}

}
// 用户新增
func addUser(c *gin.Context)  {
	var user User
	c.BindJSON(&user)
	db.Create(&user)
	c.JSON(200,user)
}

// 用户编辑
func editUser(c *gin.Context)  {
	var user User
	id := c.Params.ByName("id")
	if err := db.Where("id = ?",id).First(&user).Error;err !=nil{
		c.AbortWithStatus(404)
		fmt.Println(err)
	}
	c.BindJSON(&user)
	db.Save(&user)
	c.JSON(200,user)
}
// 用户删除
func deleteUser(c *gin.Context)  {
	var user User
	id := c.Params.ByName("id")
	d := db.Where("id  = ?",id).Delete(&user)
	fmt.Println(d)
	c.JSON(200,gin.H{"id #" + id: "deleted"})
}