Golang 连接MySql数据库使用方法
2016-03-06 19:52
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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) } }SQL:
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
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