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mein socket.io-projekt sind auf der htdocs-datei auf xampp und ich definierte die datenbank in der server.js-datei und ich überprüft, ob meine datenbanktabellen bestehen aus der empfehlung liniewie man zwischen socket.io und xampp verbindet phpmyadmin sql tabelle
/opt/lampp/bin/mysql -u root
MariaDB [(none)]> SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| users |
| fbstatus |
| information_schema |
| mysql |
| performance_schema |
| phpmyadmin |
| test |
+--------------------+
aber ich bekomme diese Fehlermeldung, wenn ich node server im Terminal
Error: ER_DBACCESS_DENIED_ERROR: Access denied for user ''@'localhost' to database 'users'
meine package.json Datei ausführen
{
"name": "iochat",
"version": "1.0.0",
"description": "Simple chat app",
"main": "server.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "shar",
"license": "ISC",
"dependencies":{
"socket.io":"*",
"express":"*"
}
}
my server.js file
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = require('socket.io').listen(server);
var mysql = require('mysql');
var connection = mysql.createConnection({
host: 'localhost'
, database: 'users'
, username: 'root'
, password: ''
});
connection.connect();
users = [];
connections = [];
server.listen(process.env.PORT || 3000);
console.log('Server running...');
app.get('/', function(req, res){
res.sendFile(__dirname + '/index.html');
});
io.sockets.on('connection', function(socket){
//con
connections.push(socket);
console.log('connected: %s socket connected', connections.length);
connection.query("UPDATE users SET onoff= '8' WHERE UserName='shakoo'");
//discon
socket.on('disconnect',function(data){
users.splice(users.indexOf(socket.username),1);
updateUsernames();
connections.splice(connections.indexOf(socket), 1);
console.log('Disconnected: %s sockets connected', connections.length);
});
//send message
socket.on('send message', function(data){
io.sockets.emit('new message', {msg: data, user: socket.username});
});
//new user
socket.on('new user', function(data, callback){
callback(true);
socket.username = data;
users.push(socket.username);
updateUsernames();
});
function updateUsernames(){
io.sockets.emit('get users', users);
}
});