mysql SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:3306

dkqlctbz 于 2022-12-22 发布在 Mysql

关注(0)|答案(7)|浏览(355)

I'm using Sequelize as an ORM to my node js app and Mysql database , after following some tutorials i m adding this code to connect mysql to the node but after taping npm start i m getting this error : Unable to connect to the database: { SequelizeConnectionRefusedError: connect ECONNREFUSED 127.0.0.1:3306

const Sequelize = require('sequelize');

 // Option 1: Passing parameters separately
 const sequelize = new Sequelize('Education', 'root','', {
 host: '127.0.0.1',
 dialect: 'mysql'
 } );

  //test db 
 sequelize
.authenticate()
.then(() => {
  console.log('Connection has been established successfully.');
})
 .catch(err => {
 console.error('Unable to connect to the database:', err);
});

mysql

来源：https://stackoverflow.com/questions/57522774/sequelizeconnectionrefusederror-connect-econnrefused-127-0-0-13306

7条答案

按热度按时间

ozxc1zmp1#

I have removed port option and issue is resolved.

const sequelize = new Sequelize('dbname', 'dbuser', 'pass', {
    dialect: 'mysql',
    host: "127.0.0.1",
    operatorAlias:false,
    logging:false,
    pool: {
        max: 5,
        idle: 30000,
        acquire: 60000,
    },
    
})

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8mmmxcuj2#

Problem solved i was using port : 3307 in phpMyadmin instead of 3306

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lymgl2op3#

Add socketPath in the dialect options
Example code snippet:

// Option 1: Passing parameters separately
const sequelize = new Sequelize('Education', 'root', '', {
  host: '127.0.0.1',
  dialect: 'mysql',
  dialectOptions: {
    socketPath: '/Applications/MAMP/tmp/mysql/mysql.sock'
  }
});

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t0ybt7op4#

FIX for Node.js use:
It looks as though the current version of sequelize (7) only works on Node.js versions ^12.22.0 , ^14.17.0 & ^16.0.0 . www.sequelize.org says that some other versions may work as well.
Use NVM to install and switch to version 16.0.0:
If you don't already have node version manager you can install it with

$ curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.1/install.sh | bash

Then install version 16 with nvm i 16.0.0 and then tell your application to use it with nvm use 16.0.0 .

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jv4diomz5#

If you're running XAMMP server on windows, first start apache server with MySQL
You get this error probably because your server is not running.
check your server and restart if necessary.

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xwbd5t1u6#

Just restart the mysql server.
Linux and Mac:
service mysql restart
Windows:
Open the Run window by using the Windows+R keyboard. Second, type services.msc and press Enter: Find mysql and restart the service.