golang mysql连接
作者:互联网
mysql 连接
package main
import (
"database/sql"
"fmt"
//"time"
_ "github.com/go-sql-driver/mysql"
)
func main() {
db, err := sql.Open("mysql", "root:root@/test?charset=utf8")
checkErr(err)
//插入数据
stmt, err := db.Prepare("INSERT INTO userinfo SET username=?,department=?,created=?",)
checkErr(err)
res, err := stmt.Exec("astaxie", "yanfa", "2012-12-09")
checkErr(err)
id, err := res.LastInsertId()
checkErr(err)
fmt.Println(id)
//更新数据
stmt, err = db.Prepare("update userinfo set username=? where uid=?")
checkErr(err)
res, err = stmt.Exec("astaxieupdate", id)
checkErr(err)
affect, err := res.RowsAffected()
checkErr(err)
fmt.Println(affect)
//查询数据
rows, err := db.Query("SELECT * FROM userinfo")
checkErr(err)
for rows.Next() {
var uid int
var username string
var department string
var created string
err = rows.Scan(&uid, &username, &department, &created)
checkErr(err)
fmt.Println(uid)
fmt.Println(username)
fmt.Println(department)
fmt.Println(created)
}
//删除数据
stmt, err = db.Prepare("delete from userinfo where uid=?")
checkErr(err)
res, err = stmt.Exec(id)
checkErr(err)
affect, err = res.RowsAffected()
checkErr(err)
fmt.Println(affect)
db.Close()
}
func checkErr(err error) {
if err != nil {
fmt.Printf("err:%v", err)
panic(err)
}
}
标签:checkErr,err,res,fmt,db,golang,mysql,Println,连接 来源: https://www.cnblogs.com/tomtellyou/p/12599536.html