NodeJS/mySQL - ER_ACCESS_DENIED_ERROR 用户“root”@“localhost”的访问被拒绝（使用密码：YES）

我尝试通过 NodeJS 文件连接到 mySQL，但收到以下错误：

{ Error: ER_ACCESS_DENIED_ERROR: Access denied for user 'root'@'localhost' (using password: YES)
    at Handshake.Sequence._packetToError (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/sequences/Sequence.js:30:14)
    at Handshake.ErrorPacket (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/sequences/Handshake.js:67:18)
    at Protocol._parsePacket (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/Protocol.js:197:24)
    at Parser.write (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/Parser.js:62:12)
    at Protocol.write (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/Protocol.js:37:16)
    at Socket.ondata (_stream_readable.js:555:20)
    at emitOne (events.js:101:20)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:176:18)
    at Socket.Readable.push (_stream_readable.js:134:10)
    --------------------
    at Protocol._enqueue (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/Protocol.js:110:26)
    at Protocol.handshake (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/protocol/Protocol.js:42:41)
    at Connection.connect (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/Connection.js:81:18)
    at Connection._implyConnect (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/Connection.js:222:10)
    at Connection.query (/home/matthew/Node/mySqlTest/node_modules/mysql/lib/Connection.js:137:8)
    at Object.<anonymous> (/home/matthew/Node/mySqlTest/index.js:11:12)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
  code: 'ER_ACCESS_DENIED_ERROR',
  errno: 1045,
  sqlState: '28000',
  fatal: true }

奇怪的是我可以通过运行以下命令通过终端正常连接mysql -u root -p。我只在运行 javascript 时出现此错误。我已经查遍了 Google 和 StackOverflow，但仍然没有找到有效的解决方案。我在虚拟机上的 Ubuntu 16.04.1 上使用 MySQL 5.7.16。不确定虚拟机是否会产生影响。我的 JavaScript 代码如下：

'use strict';                                                                                                                                      

var mysql = require('mysql');

var connection = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    password: 'password'
});

connection.query(
    'SELECT "foo" AS first_field, "bar" AS second_field',
    function(err, results, fields) {
        console.log(err);
        console.log(results);
        connection.end();
    }
);

我尝试在 JavaScript 中使用“locahost”和“127.0.0.1”。我在 mySql.user 表中拥有“localhost”和“127.0.0.1”的“root”用户，我可以通过执行来看到这一点SELECT user, host FROM mysql.user WHERE user='root';

我通过执行以下命令向“root”用户添加了权限：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY 'password';

我也在 127.0.0.1 上运行了上面的代码。我也尝试过这个：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION

我尝试像这样重置 root 密码：https://help.ubuntu.com/community/MysqlPasswordReset https://help.ubuntu.com/community/MysqlPasswordReset

我跑了FLUSH PRIVILEGES每次尝试后。我已经停止并重新启动了 mySQL。我已经完全卸载了mySQL并重新安装。

一切都无济于事。每次尝试运行 javascript 时，我都会收到访问被拒绝的错误，但当我通过终端连接到 mySQL 时，绝对没有问题。

有任何想法吗？

我有同样的问题，我通过将密码更改为空字符串解决了它。

var mysql = require('mysql');
var connection = mysql.createConnection({
    host: 'localhost',
    user: 'root',
    password: ''
});