beego中的crud操作

step1:在数据库中建立一个test数据库
里面建立一张tes表

CREATE TABLE `test` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `content` varchar(255) DEFAULT NULL,
  `create_time` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4;

下载数据库驱动包
go get github.com/astaxie/beego/orm
go get github.com/go-sql-driver/mysql
路由文件:

beego.Router("/write", &controllers.ApiController{},"*:Write")
beego.Router("/read", &controllers.ApiController{},"*:Read")
beego.Router("/update", &controllers.ApiController{},"*:Update")
beego.Router("/del", &controllers.ApiController{},"*:Del")

在modeles中建立模型

package models
import (
	"fmt"
	"github.com/astaxie/beego/orm"
	_ "github.com/go-sql-driver/mysql" // import your used driver
)

type Test struct {
	Id int64
	Content string
	Create_time int64
}
func init() {
	orm.RegisterDriver("mysql", orm.DRMySQL)
	//连接数据库
	orm.RegisterDataBase("default", "mysql", "root:root@tcp(39.139.91.456:3306)/test?charset=utf8")
	orm.RegisterModel(new(Test))
	if r := recover(); r != nil {
		fmt.Println("Recovered in f", r)
	}
}

控制器

package controllers

import (
	"fmt"
	"github.com/astaxie/beego"
	"github.com/astaxie/beego/orm"
	"math/rand"
	"strconv"
	"time"
	"zigbig/models"
)

type ApiController struct {
	beego.Controller
}



//写入数据
func (c *ApiController) Write() {
   param:=c.Input().Get("name")
   if r := recover(); r != nil {
		fmt.Println("Recovered in f", r)
	}

  if param=="null"||param==""{
	  c.Data["json"] = map[string]interface{}{"code": 1, "message": "传入的参数为空"}
	  c.ServeJSON()
	  return
  }
  orm:=orm.NewOrm()
  test:=models.Test{
  	Content:param,
  	Create_time:time.Now().Unix(),
  }
  id,err:= orm.Insert(&test)
  if err!=nil{
	  c.Data["json"] = map[string]interface{}{"code": 1, "message": "保存数据失败"}
	  c.ServeJSON()
  	return
  }
  if id>0{
	  c.Data["json"] = map[string]interface{}{"code": 1, "message": "保存数据成功"}
  }else{
	  c.Data["json"] = map[string]interface{}{"code": 0, "message": "保存数据失败"}
  }

	c.ServeJSON()
	return
}
//读取数据
func (c *ApiController) Read() {
	id:=c.Input().Get("id")
	if id==""||id=="null"{
		c.Data["json"] = map[string]interface{}{"code": 1, "message": "没有传递参数id"}
		c.ServeJSON()
		return
	}
	temp,_:=strconv.ParseInt(id,10,64)
	orm:=orm.NewOrm()
	fmt.Println(orm)
	u := models.Test{Id:temp}
	err:= orm.Read(&u)
	if err==nil{
		c.Data["json"] = map[string]interface{}{"code": 0, "message": "查询成功","data":u}
	}else{
		c.Data["json"] = map[string]interface{}{"code": 1, "message": "查询失败","data":u}
	}
   defer func() {
	   c.Data["json"] = map[string]interface{}{"code": 1, "message": "err","data":u}
	   c.ServeJSON()
	   return
   }()
	c.ServeJSON()
	return
}
//更新数据
func (c *ApiController) Update() {

	id:=c.Input().Get("id")
	if id==""||id=="null"{
		c.Data["json"] = map[string]interface{}{"code": 1, "message": "没有传递参数id"}
		c.ServeJSON()
		return
	}
	temp,_:=strconv.ParseInt(id,10,64)
	orm:=orm.NewOrm()
	fmt.Println(orm)
	u := models.Test{Id:temp}
	err:= orm.Read(&u)
	if err==nil{
		u.Content=string(rand.Intn(100))+"zq2019"

		if _, err := 	orm.Update(&u); err == nil {
			c.Data["json"] = map[string]interface{}{"code": 0, "message": "更新成功"}
		}else{
			c.Data["json"] = map[string]interface{}{"code": 0, "message": "更新失败"}
		}

	}else{
		c.Data["json"] = map[string]interface{}{"code": 1, "message": "查询失败","data":u}
	}
	defer func() {
		c.Data["json"] = map[string]interface{}{"code": 1, "message": "err","data":u}
		c.ServeJSON()
		return
	}()
	c.ServeJSON()
	return
}
//删除数据
func (c *ApiController) Del() {
	id:=c.Input().Get("id")
	if id==""||id=="null"{
		c.Data["json"] = map[string]interface{}{"code": 1, "message": "没有传递参数id"}
		c.ServeJSON()
		return
	}
	temp,_:=strconv.ParseInt(id,10,64)
	orm:= orm.NewOrm()
	if num, err := orm.Delete(&models.Test{Id: temp}); err == nil {
		fmt.Println(num)
	}
	c.Data["json"] = map[string]interface{}{"code": 1, "message": "删除成功"}
	c.ServeJSON()
	return
}

温馨提醒：使用Orm连接本地mysql驱动

orm.RegisterDataBase(“default”, “mysql”, “root:root@/test?charset=utf8”)
连接远程数据库
orm.RegisterDataBase(“default”, “mysql”, “root:root@tcp(39.139.91.456:3306)/test?charset=utf8”)