【golang操作数据库】

golang操作数据库

• • • 前期工作
    • 链接操作数据库

前期工作

    go get github.com/go-sql-driver/mysql 
    go get github.com/jmoiron/sqlx

链接操作数据库

package main
  
import(
        "fmt"
        _ "github.com/go-sql-driver/mysql"
            "github.com/jmoiron/sqlx"
)

type Test struct{
        Id int `db:"id"`
        Username string `db:"username"`

}


var Db *sqlx.DB

func init(){
        database,err:=sqlx.Open("mysql","账号:密码.@tcp(IP:端口)/数据库")

        if err!=nil{
        fmt.Println("exel faild",err)
        return
        }
        Db=database
//      defer db.Close()
}
func main(){
      //插入
      r,err:=Db.Exec("insert into test(username)values(?)","duzhili")
      //查询
      var test []Test
      err:=Db.Select(&test,"select * from test")
      //修改
      up,err:=Db.Exec("update test set username=?","laowang")
     //删除
      de,err:=Db.Exec("delete from  test")
	  if err!=nil{
           fmt.Println("exel faild",err)
           return
      }
        
}