由于某种原因,我无法建立到服务器的简单连接。我安装了最新的MySQL Community 8.0数据库以及默认设置的Node.JS。

这是我的node。js代码

    var mysql = require('mysql');

    var con = mysql.createConnection({
      host: "localhost",
      user: "root",
      password: "password",
      insecureAuth : true
    });

    con.connect(function(err) {
      if (err) throw err;
      console.log("Connected!");
    });

以下是在命令提示符中发现的错误:

C:\Users\mysql-test>node app.js
    C:\Users\mysql-test\node_modules\mysql\lib\protocol\Parse
    r.js:80
            throw err; // Rethrow non-MySQL errors
            ^

Error: ER_NOT_SUPPORTED_AUTH_MODE: Client does not support authentication protocol requested by server; consider upgrading MySQL client
    at Handshake.Sequence._packetToError (C:\Users\mysql-
test\node_modules\mysql\lib\protocol\sequences\Sequence.js:52:14)
    at Handshake.ErrorPacket (C:\Users\mysql-test\node_mo
dules\mysql\lib\protocol\sequences\Handshake.js:130:18)
    at Protocol._parsePacket (C:\Users\mysql-test\node_mo
dules\mysql\lib\protocol\Protocol.js:279:23)
    at Parser.write (C:\Users\mysql-test\node_modules\mys
ql\lib\protocol\Parser.js:76:12)
    at Protocol.write (C:\Users\mysql-test\node_modules\m
ysql\lib\protocol\Protocol.js:39:16)
    at Socket.<anonymous> (C:\Users\mysql-test\node_modul
es\mysql\lib\Connection.js:103:28)
    at Socket.emit (events.js:159:13)
    at addChunk (_stream_readable.js:265:12)
    at readableAddChunk (_stream_readable.js:252:11)
    at Socket.Readable.push (_stream_readable.js:209:10)
    --------------------
    at Protocol._enqueue (C:\Users\mysql-test\node_module
s\mysql\lib\protocol\Protocol.js:145:48)
    at Protocol.handshake (C:\Users\mysql-test\node_modul
es\mysql\lib\protocol\Protocol.js:52:23)
    at Connection.connect (C:\Users\mysql-test\node_modul
es\mysql\lib\Connection.js:130:18)
    at Object.<anonymous> (C:\Users\mysql-test\server.js:
11:5)
at Module._compile (module.js:660:30)
at Object.Module._extensions..js (module.js:671:10)
at Module.load (module.js:573:32)
at tryModuleLoad (module.js:513:12)
at Function.Module._load (module.js:505:3)
at Function.Module.runMain (module.js:701:10)

我读过一些东西,比如: https://dev.mysql.com/doc/refman/5.5/en/old-client.html https://github.com/mysqljs/mysql/issues/1507

但是我仍然不确定如何解决我的问题。任何帮助都将不胜感激


当前回答

使用旧的mysql_native_password可以工作:

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'YourRootPassword';
-- or
CREATE USER 'foo'@'%' IDENTIFIED WITH mysql_native_password BY 'bar';
-- then
FLUSH PRIVILEGES;

这是因为在MySQL 8.0中引入了caching_sha2_password,但是Node.js版本还没有实现。您可以查看这个拉请求和这个问题以获得更多信息。可能很快就会修复!

其他回答

对于会话,您应该使用用于mysql连接的任何模式

(async () => {
    const connection = await db.connection();
    sessionStore = new MySQLStore({

    }, connection); //just pass your connection here 
})();

我只是复制粘贴到这里但你可能已经实现了类似的东西来处理你的查询

const mysql = require('mysql')

if (!process.env.NODE_ENV || process.env.NODE_ENV === 'development') {
    require('dotenv').config();
}

const dbConfig = {
    host: process.env.DB_HOST,
    user: process.env.DB_USER,
    password: process.env.DB_PASSWORD,
    database: process.env.DB_DATABASE,
    connectionLimit: process.env.DB_CONNECTION_LIMITS
}

const pool = mysql.createPool(dbConfig);

const connection = () => {
    return new Promise((resolve, reject) => {
        pool.getConnection((err, connection) => {
            if (err) {
                reject(err);
            }

            const query = (sql, binding) => {
                return new Promise((resolve, reject) => {
                    connection.query(sql, binding, (err, result) => {
                        if (err) {
                            reject(err);
                        }
                        resolve(result);
                    });
                });
            };

            const release = () => {
                return new Promise((resolve, reject) => {
                    if (err) {
                        reject(err);
                    }
                    resolve(connection.release());
                });
            };
            resolve({ query, release });
        });
    });
};

const query = (sql, binding) => {
    return new Promise((resolve, reject) => {
        pool.query(sql, binding, (err, result, fields) => {
            if (err) {
                reject(err);
            }
            resolve(result);
        });
    });
};

module.exports = { pool, connection, query };

您可以在这里找到原始文档:https://dev.mysql.com/doc/dev/connector-nodejs/8.0/

'use strict';

const mysqlx = require('@mysql/xdevapi');

const options = {
  host: 'localhost',
  port: 33060,
  password: '******',
  user: 'root',
  schema: 'yourconference'
};

mysqlx.getSession(options)
  .then(session => {
          console.log(session.inspect());
           session.close();
  }).catch(err => {
    console.error(err.stack);
    process.exit(1);
  });

在Mysql最新的docker容器

ALTER USER root IDENTIFIED WITH mysql_native_password BY 'password';

如果你有权限创建一个新的用户权限,然后这样做,以正常连接node.js,这对我来说是有效的

在MYSQL Workbench中执行以下查询

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

root用户在哪里 localhost作为URL 密码就是你的密码

然后运行这个查询刷新特权:

冲洗特权;

在执行此操作后尝试使用node进行连接。

如果不工作,尝试没有@'localhost'部分。