I have tried to connect NodeJS to mysql on Windows 10, but continuously failed to. The following is the code, which from https://www.w3schools.com/nodejs/nodejs_mysql_create_db.asp
var mysql = require('mysql');
var con = mysql.createConnection({
host: "localhost",
user: "yourusername",
password: "yourpassword"
});
con.connect(function(err) {
if (err) throw err;
console.log("Connected!");
con.query("CREATE DATABASE mydb", function (err, result) {
if (err) throw err;
console.log("Database created");
});
});
and the following is the error message when I run code.
if(err) throw err;
^
Error: connect ECONNREFUSED 127.0.0.1:3306
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1134:16)
--------------------
at Protocol._enqueue (C:\Users\tete6\NodeJS\node_modules\mysql\lib\protocol\Protocol.js:144:48)
at Protocol.handshake (C:\Users\tete6\NodeJS\node_modules\mysql\lib\protocol\Protocol.js:51:23)
at Connection.connect (C:\Users\tete6\NodeJS\node_modules\mysql\lib\Connection.js:116:18)
at Object.<anonymous> (C:\Users\tete6\NodeJS\demo_db_connection.js:9:5)
at Module._compile (internal/modules/cjs/loader.js:955:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:991:10)
at Module.load (internal/modules/cjs/loader.js:811:32)
at Function.Module._load (internal/modules/cjs/loader.js:723:14)
at Function.Module.runMain (internal/modules/cjs/loader.js:1043:10)
at internal/main/run_main_module.js:17:11 {
errno: 'ECONNREFUSED',
code: 'ECONNREFUSED',
syscall: 'connect',
address: '127.0.0.1',
port: 3306,
fatal: true
}
To solve this error, I tried ...
- change "localhost" -> "127.0.0.1", but failed.
- add "port: 3306", but failed.
- check if the port is available to be connected, and I found that it's never my port, fireWall problem. My xampp's mysql works well.
- Even mongoDB module triggers this same error message.
I gleaned some info that this econnrefused error message is mainly the problem of NodeJS, not of sql module.
Is anyone to show me silver shining from this?
