Go 操作 Mysql 数据库

同一个数据库表结构：数据库 test，用户表 userinfo，
关联用户信息表 userdetail。
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)
)
如下示例将示范如何使用 database/sql 接口对数据库表进行增删改查操作
package main
import (
_ "github.com/Go-SQL-Driver/MySQL"
"database/sql"
"fmt"
//"time"
)
func main() {
db, err := sql.Open("mysql", "astaxie:astaxie@/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("astaxie", "研发部门", "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 {
panic(err)
}
}
通过上面的代码我们可以看出，Go 操作 Mysql 数据库是很方便的。