Go mysql使用举例

Posted 2020-10-29 翔云

下载mysql驱动

$ go get github.com/go-sql-driver/mysql

或者下载源码放到GOPATH中，下载地址：https://github.com/go-sql-driver/mysql

Example

建表

简单创建一个table tbl_log包含3各字段ip,name, detail_msg.

下面代码向表中插入一条记录。

package main

import (
    "database/sql"
    "fmt"
    "log"

    _ "github.com/go-sql-driver/mysql"

)

var DB *sql.DB

var dataBase = "root:[email protected](127.0.0.1:3306)/new_portal?loc=Local&parseTime=true"

func Init() {
    var err error
    DB, err = sql.Open("mysql", dataBase)
    if err != nil {
        log.Fatalln("open db fail:", err)
    }

    DB.SetMaxOpenConns(20)
    DB.SetMaxIdleConns(15)

    err = DB.Ping()
    if err != nil {
        log.Fatalln("ping db fail:", err)
    }
}

func main() {

    Init()

    insert()

}


func insert() {

    origin := "abc"
    log.Println("orign:",origin)

    detailMsg := origin

    sql := fmt.Sprintf(
        "insert into tbl_log(ip, name, detail_msg) values (‘%s‘, ‘%s‘, ‘%s‘)",
        "1.1.0.1",
        "test.py",
        detailMsg,
    )

    log.Println("sql:", sql)

    _, err := DB.Exec(sql)
    if err != nil {
        log.Println("exec failed:", err, ", sql:", sql)
        return
    }


}

output

2018/04/06 10:17:00 orign: abc
2018/04/06 10:17:00 sql: insert into tbl_log(ip, name, detail_msg) values (‘1.1.0.1‘, ‘test.py‘, ‘abc‘)

查看数据库，已经插入记录。