MySQL 8.0客户端不支持服务器请求的认证协议;考虑升级MySQL客户端

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

这个错误我犯了好几个小时，最后才弄清楚。正如Zchary所说，要非常仔细地检查您传递的数据库名称是否正确。

实际上，在我的情况下，情况更糟:我将所有createConnection()参数都传递为未定义，因为我是从process.env中获取它们。至少我是这么想的!然后我意识到我的调试和测试npm脚本工作，但事情失败了正常运行。嗯…

所以重点是- MySQL似乎抛出这个错误，即使用户名，密码，数据库和主机字段都是未定义的，这是有点误导..

不管怎样，这个故事的士气-先检查愚蠢和看似不可能的事情!

2020-09-06 08:35:37

其他回答

您可以跳过ORM，构建器等，并使用sqler和sqler-mdb简化您的DB/SQL管理。

-- create this file at: db/mdb/read.table.rows.sql
SELECT TST.ID AS "id", TST.NAME AS "name", NULL AS "report",
TST.CREATED_AT AS "created", TST.UPDATED_AT AS "updated"
FROM TEST TST
WHERE UPPER(TST.NAME) LIKE CONCAT(CONCAT('%', UPPER(:name)), '%')

const conf = {
  "univ": {
    "db": {
      "mdb": {
        "host": "localhost",
        "username":"admin",
        "password": "mysqlpassword"
      }
    }
  },
  "db": {
    "dialects": {
      "mdb": "sqler-mdb"
    },
    "connections": [
      {
        "id": "mdb",
        "name": "mdb",
        "dir": "db/mdb",
        "service": "MySQL",
        "dialect": "mdb",
        "pool": {},
        "driverOptions": {
          "connection": {
            "multipleStatements": true
          }
        }
      }
    ]
  }
};

// create/initialize manager
const manager = new Manager(conf);
await manager.init();

// .sql file path is path to db function
const result = await manager.db.mdb.read.table.rows({
  binds: {
    name: 'Some Name'
  }
});

console.log('Result:', result);

// after we're done using the manager we should close it
process.on('SIGINT', async function sigintDB() {
  await manager.close();
  console.log('Manager has been closed');
});

2020-06-12 20:03:36

对于MySql 8，创建一个拥有所有权限的新用户，并将认证方法从caching_sha2_password更改为mysql_native_password。详细步骤请查看Ochuko Ekrresa的文档。

步骤总结:

以root登录mysql -u root -p 创建用户newuser @ localhost 授予*上的所有特权。* TO 'newuser'@'localhost';

请检查上述文档链接，以获得有关授予特定特权的详细信息。

重新加载特权FLUSH privileges; MySql退出;再次登录mysql -u [newuser] -p; ALTER USER 'newuser'@'localhost' IDENTIFIED WITH mysql_native_password by 'password';

额外的信息: 对于我来说，在将身份验证更改为root后，我面临身份验证问题，无法登录。所以我重置我的密码(重置密码doc)。

2021-04-13 15:06:51

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: