Golang之Mysql事務

Mysql事務
1)原子性
2)一致性
3)隔離性
4)持久性

示例代碼

package main

import (
    "fmt"
    _ "github.com/go-sql-driver/mysql" //初始化一個mysql驅動，必須
    "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"指定數據庫類型，  /test指定打開的數據庫  root:123 冒號隔開密碼 root賬號 123密碼
    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() {
    //事務操作
    conn, err := Db.Begin()
    if err != nil {
        return
    }

    //插入數據入表
    r, err := Db.Exec("insert into person(username,sex,email)values(?,?,?)", "chaoge", "man", "[e-mail]")
    if err != nil {
        fmt.Println("exec failed,", err)
        return
    }

    id, err := r.LastInsertId()
    if err != nil {
        fmt.Println("exec failed,", err)
        //回滾
        conn.Rollback()
        return
    }
    fmt.Println("insert succ:", id)
　　　　//提交事務
    conn.Commit()
}