Mysql事务

)原子性

)一致性

)隔离性

)持久性

package main

import (

    "fmt"

    _ "github.com/go-sql-driver/mysql" //初始化一个mysql驱动，必须

    "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() {

    //"mysql"指定数据库类型，  /test指定打开的数据库  root:123 冒号隔开密码 root账号 123密码

    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() {

    //事务操作

    conn, err := Db.Begin()

    if err != nil {

        return

    }

    //插入数据入表

    r, err := Db.Exec("insert into person(username,sex,email)values(?,?,?)", "chaoge", "man", "yc_uuu@163.com")

    if err != nil {

        fmt.Println("exec failed,", err)

        return

    }

    id, err := r.LastInsertId()

    if err != nil {

        fmt.Println("exec failed,", err)

        //回滚

        conn.Rollback()

        return

    }

    fmt.Println("insert succ:", id)
　　　　//提交事务

    conn.Commit()

}