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go语言怎么和mysql数据库进行链接

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2016-06-07 16:22:041009browse

在网上找了一大堆例子,最后简化一下把,一下会从安装mysql开始,与大家分享一下如何用go链接服务器上的mysql 我用的是ubuntu系统 1,安装mysql:sudo apt-get install mysql-server (记住root的密码假设密码为root123) 2,进入mysql:mysql -uroot -p 然

 在网上找了一大堆例子,最后简化一下把,一下会从安装mysql开始,与大家分享一下如何用go链接服务器上的mysql

我用的是ubuntu系统

1,安装mysql:sudo apt-get install mysql-server (记住root的密码假设密码为root123)

2,进入mysql:mysql -uroot -p 然后输入密码

3,,创建一个数据库:create database people;

4,给数据库people添加用户:GRANT ALL PRIVILEGES ON people.* TO peo@localhost IDENTIFIED BY "peo123";

5,调整数据库配置以便于远程访问:GRANT ALL PRIVILEGES ON people.* TO peo@“%” IDENTIFIED BY "peo123"; 然后推出mysql执行:sudo nano /etc/mysql/my.cnf

修改bind-address=127.0.0.1 到bind-address= 机器的IP(就是安装mysql的机器的ip)

6,重启mysql:sudo /etc/init.d/mysql restart

7,建表:首先进入mysql:mysql -u peo -p

进入数据库下:use people

创建表:create table hello(age int, name varchar(10));

插入一条数据:insert into hello(age, name) values(19, "hello world");

至此数据库方面的工作已经做好,接下来是go语言了

8,首先下载mysql的驱动包(应该是这样叫)执行 go get github.com/go-sql-driver/mysql代码会下载到你的gopath下(执行export可以查看gopath)

接着就是下面的代码了

package main
import "database/sql"
import _ "github.com/go-sql-driver/mysql"
import "encoding/json"
import "fmt"


type User struct {
    Age     int `json:"age"`
    Name string `json:"name"`
}


func main() {
    fmt.Println("start")

    db, err := sql.Open("mysql", "peo:peo123@tcp(192.168.0.58:3306)/people?charset=utf8")
    if err != nil { 
       panic(err)
    }

    rows, err := db.Query("select age,name from hello")
    if err != nil {
       panic(err)
    }
    defer rows.Close()
 
    for rows.Next() {
        user := &User{}
        err = rows.Scan(&user.Age, &user.Name)
        if err != nil {
          painc(err)
        }
        b, _ := json.Marshal(user)
        fmt.Println(string(b)) 
    }
    println("end")
}
至此结束

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