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• go 连接 mysql 问题

go 连接 mysql 问题

参考官方文档
https://go.dev/doc/tutorial/database-access

var db *sql.DB

func main() {
    // Capture connection properties.
    cfg := mysql.Config{
        User:   os.Getenv("DBUSER"),
        Passwd: os.Getenv("DBPASS"),
        Net:    "tcp",
        Addr:   "127.0.0.1:3306",
        DBName: "recordings",
    }
    // Get a database handle.
    var err error
    db, err = sql.Open("mysql", cfg.FormatDSN())
    if err != nil {
        log.Fatal(err)
    }

    pingErr := db.Ping()
    if pingErr != nil {
        log.Fatal(pingErr)
    }
    fmt.Println("Connected!")
}

报错:

zego@zegodeMacBook-Pro-53 data-access % go run main.go
[mysql] 2021/12/16 11:23:02 connector.go:95: could not use requested auth plugin 'mysql_native_password': this user requires mysql native password authentication.
2021/12/16 11:23:02 this user requires mysql native password authentication.
exit status 1

解决方法：添加 AllowNativePasswords: true,

	cfg := mysql.Config{
		User:                 os.Getenv("DBUSER"),
		Passwd:               "123456",
		Net:                  "tcp",
		Addr:                 "127.0.0.1:3306",
		DBName:               "recordings",
		AllowNativePasswords: true,
	}

参考文档中说明该参数默认为 true，我这边不知道何原因为 false
当设为 false 表示不允许使用 MySQL 原生密码方法

参数文档

https://github.com/go-sql-driver/mysql#dsn-data-source-name

解决方案参考链接

https://github.com/go-sql-driver/mysql/issues/815