ER_ACCESS_DENIED_ERROR:拒绝用户访问'' localhost' (使用密码:否)

时间:2017-09-13 14:54:20

标签: mysql node.js database localhost

我有这个问题,我已经研究过,我无法解决它,我想它与数据库权限有关,但我无法修复它:

if (error) throw error;
       ^

Error: ER_ACCESS_DENIED_ERROR: Access denied for user ''@'localhost' (using password: NO)
at Handshake.Sequence._packetToError (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/sequences/Sequence.js:52:14)
at Handshake.ErrorPacket (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/sequences/Handshake.js:103:18)
at Protocol._parsePacket (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/Protocol.js:279:23)
at Parser.write (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/Parser.js:76:12)
at Protocol.write (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/Protocol.js:39:16)
at Socket.<anonymous> (/home/carlos/www/express-cc/node_modules/mysql/lib/Connection.js:103:28)
at emitOne (events.js:115:13)
at Socket.emit (events.js:210:7)
at addChunk (_stream_readable.js:266:12)
at readableAddChunk (_stream_readable.js:253:11)
--------------------
at Protocol._enqueue (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/Protocol.js:145:48)
at Protocol.handshake (/home/carlos/www/express-cc/node_modules/mysql/lib/protocol/Protocol.js:52:23)
at Connection.connect (/home/carlos/www/express-
cc/node_modules/mysql/lib/Connection.js:130:18)
at Object.<anonymous> (/home/carlos/www/express-cc/db.js:10:12)
at Module._compile (module.js:573:30)
at Object.Module._extensions..js (module.js:584:10)
at Module.load (module.js:507:32)
at tryModuleLoad (module.js:470:12)
at Function.Module._load (module.js:462:3)
at Module.require (module.js:517:17)

----编辑-----

我的env.default文件:

NODE_ENV=DEVELOPMENT

DB_HOST=localhost
DB_USER=user
DB_PASSWORD=userpass
DB_NAME=teste

所以这是我的db.js文件:

 var mysql = require('mysql')
  var connection = mysql.createConnection({
  host: process.env.DB_HOST,
  user: process.env.DB_USER,
  password: process.env.DB_PASSWORD,
  database : process.env.DB_NAME,
  sockertPath: '/var/run/mysqld/mysqld.sock'
})

 connection.connect()

 connection.query('SELECT 1 + 1 AS solution',
 function (error, results, fields) {
if (error) throw error;
console.log('The solution is: ', results[0].
  solution)
});

 module.exports = connection;

7 个答案:

答案 0 :(得分:1)

您没有提供数据库用户:

Error: ER_ACCESS_DENIED_ERROR: Access denied for user ''@'localhost' (using password: NO)

答案 1 :(得分:1)

您必须专门创建一个MySQL用户才能访问该应用。创建用户并设置密码(不要将密码保留为null)。不要忘记授予此用户权限,以便能够访问数据库和应用程序表。我希望我有所帮助。

答案 2 :(得分:1)

我遇到了类似的问题,我的所有连接都在工作,但是我收到错误“ER_ACCESS_DENIED_ERROR:用户 ''@'localhost' 访问被拒绝(使用密码:NO)'我的电话是在 app.js 级别的中间件内部制作,因此 .env 值尚无法访问,对于这种情况(它可以帮助那些和我有同样问题的人)我不得不补充:

require('dotenv').config();

在这样的连接文件中:

const mysql = require('mysql')
require('dotenv').config();
const connectionLog = mysql.createPool({
    connectionLimit : 10,
    host: process.env.DB_HOST_LOG,
    user: process.env.DB_USER,
    password: process.env.DB_PASSWORD,
    database: process.env.DB_DATABASE,
    port:process.env.DB_PORT
})

对我来说就是分辨率。

答案 3 :(得分:0)

您必须为新用户添加的IP地址必须是允许的主机部分的IP地址,而不是“ localhost”

RENAME USER 'myuser'@'localhost' TO 'myuser'@'127.0.0.1';

答案 4 :(得分:0)

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '';

然后在执行该命令后立即通过执行以下命令清除特权:

flush privileges;

答案 5 :(得分:0)

使用 % 代替 localhost 解决了这个问题:

CREATE USER 'user'@'%' IDENTIFIED WITH mysql_native_password BY 'password';
GRANT ALL PRIVILEGES ON db.* TO 'user'@'%';

代替

CREATE USER 'user'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
GRANT ALL PRIVILEGES ON db.* TO 'user'@'localhost';

答案 6 :(得分:-2)

您可以执行以下操作: mysql -u root -p 输入密码:

在此处创建用户和数据库,之后在代码中使用这些详细信息。 即以root用户身份登录。