node使用mysql模块报错Host 'localhost' is not allowed to connect to this MySQL server"？

###代码如下：

var mysql  = require('mysql');
var connection = mysql.createConnection({
  host: '127.0.0.1',
  port:'3306',
  user: 'root',
  password: '123456',
  database: 'wechat'
});
connection.connect();
module.exports=connection;

###报错信息：

code: 'ER_HOST_NOT_PRIVILEGED',
  errno: 1130,
  sqlMessage: "Host 'localhost' is not allowed to connect to this MySQL server",
  sqlState: undefined,
  fatal: true
}

跪求大佬解答

密码是否正确，可以先stop mysql服务，重置下密码看看