简单玩一玩 go mysql 编程

首先引入我们需要的第三方库

go get github.com/go-sql-driver/mysql
go get github.com/jmoiron/sqlx

import (
    _ "github.com/go-sql-driver/mysql"
    "github.com/jmoiron/sqlx"
)

链接mysql数据库

func init(){
    database, err := sqlx.Open("mysql", "root:javadev@tcp(127.0.0.1:3306)/test")
    if err != nil {
        fmt.Println("open mysql failed,", err)
        return
    }
    Db = database
    fmt.Println("init ....");
}

基本操作

insert

package main

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

type Person struct {
    UserId   int    `db:"user_id"`
    Username string `db:"username"`
    Sex      string `db:"sex"`
    Email    string `db:"email"`
}

type Place struct {
    Country string `db:"country"`
    City    string `db:"city"`
    TelCode int    `db:"telcode"`
}

var Db *sqlx.DB
func init() {
    database, err := sqlx.Open("mysql", "root:@tcp(127.0.0.1:3306)/test")
    if err != nil {
        fmt.Println("open mysql failed,", err)
        return
    }
    Db = database
}

func main() {
    r, err := Db.Exec("insert into person(username, sex, email)values(?, ?, ?)", "stu001", "man", "[email protected]")
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }
    id, err := r.LastInsertId()
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

    fmt.Println("insert succ:", id)
}

select操作

var person []Person
    err := Db.Select(&person, "select user_id, username, sex, email from person where user_id=?", 1)
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

    fmt.Println("select succ:", person)

update 操作

_, err := Db.Exec("update person set username=? where user_id=?", "stu0001", 1)
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

delete 操作

_, err := Db.Exec("delete from person where user_id=?", 1)
    if err != nil {
        fmt.Println("exec failed, ", err)
        return
    }

在go语言中，使用的mysql默认已经带有数据库连接池，用起来非常方便简单。