Node.js和MySQL - 错误：1251 - 客户端不支持服务器请求的身份验证协议;考虑升级MySQL客户端

Question

Right now I have only this code:

const Sequelize = require('sequelize');
const sequelize = new Sequelize('database', 'root', 'passwd', {
  host: 'localhost',
  dialect: 'mysql',

    // http://docs.sequelizejs.com/manual/tutorial/querying.html#operators
  operatorsAliases: false
});
sequelize
  .authenticate()
  .then(() => {
    console.log('Connection has been established successfully.');
  })
  .catch(err => {
    console.error('Unable to connect to the database:', err);
  });

But when I try to run the .js I get this error . I have already tried a lot of solutions out there, including the one I found more often but it didn't work . So right now I don't know what to do. Can somebody help me?

Thank you

Answer 1

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

Worked for me. root password is changed to 'password'

Answer 2

Changing the plugin to mysql_native_password might solve the problem!

use mysql;
update user set authentication_string=password(''), plugin='mysql_native_password' where user='root';

Answer 3

Basically when I was trying to connect to Mysql Query Browser at that time I as facing the issue.

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

Worked for me. root password is changed to 'root'

Answer 4

I found out that I was caused by incorrect parameters.

{ database: 'abc',
  username: undefined,
  password: 'efsefs',
}

username is undefined, but the error is "consider upgrading MySQL client" So modify the user name to be true, the error resolved.