Golang 连接MySql数据库使用方法

package main

import (
	"database/sql"
	"fmt"
	_ "github.com/go-sql-driver/mysql"
)

var (
	dbhostsip  = "127.0.0.1:3306"//IP地址
	dbusername = "root"//用户名
	dbpassword = "123456"//密码
	dbname     = "Test"//表名
)

func main() {
	db,err := sql.Open("mysql","root:123456@tcp(127.0.0.1:3306)/Test?charset=utf8")
	checkErr(err)

	//插入数据
	stmt,err := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?")
	checkErr(err)

	res,err := stmt.Exec("码农","研发部门","2016-03-06")
	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("码农二代",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 {
		panic(err)
	}
}

CREATE TABLE `userinfo` (
    `uid` INT(10) NOT NULL AUTO_INCREMENT,`username` VARCHAR(64) NULL DEFAULT NULL,`departname` VARCHAR(64) NULL DEFAULT NULL,`created` DATE NULL DEFAULT NULL,PRIMARY KEY (`uid`)
)

CREATE TABLE `userdetail` (
    `uid` INT(10) NOT NULL DEFAULT '0',`intro` TEXT NULL,`profile` TEXT NULL,PRIMARY KEY (`uid`)
)

Go MySql包地址:github.com/go-sql-driver/mysql

本文代码参考:https://github.com/astaxie/build-web-application-with-golang

（编辑：李大同）

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