How to correctly set socket.io ports? Getting sock

问题:

I have the following setup, according to the documentation:

Client-side:

<script src="/socket.io/socket.io.js"></script>
var socket = io.connect(); // TIP: .connect with no args does auto-discovery

Server-side:

var express = require('express'),
    routes = require('./routes'),
    user = require('./routes/user'),
    http = require('http'),
    path = require('path');
    app = express(),
    server = http.createServer(app).listen(80),
    io = require('socket.io').listen(server);


app.configure(function(){
    app.set('port', process.env.PORT || 3000);
    app.set('views', __dirname + '/views');
    app.set('view engine', 'jade');
    app.use(express.logger('dev'));
    app.use(express.bodyParser());
    app.use(express.methodOverride());
    app.use(app.router);
    app.use(express.static(path.join(__dirname, 'public')));
});

app.get('/', routes.index);
app.get('/users', user.list);

http.createServer(app).listen(app.get('port'), function(){
    console.log("Express server listening on port " + app.get('port'));
});

Why am I getting

GET http://localhost:5000/socket.io/socket.io.js 404 (Not Found)

I tried switching to server = http.createServer(app).listen(process.env.PORT || 3000), bu then I got warn: error raised: Error: listen EACCES and same 404. What am I missing here about the port usage?

回答1:

You can't create a server on port 80 without special permissions. And on another sidenote, you are trying to create 2 servers (one on port 80 and another one on port 3000).

Here's (a part of) what i'm using for my projects:

var express = require('express')
  , app = express()
  , server = require('http').createServer(app)
  , sio = require('socket.io').listen(server)

app.configure(function(){
    app.set('port', process.env.PORT || 3000);
    app.set('views', __dirname + '/views');
    app.set('view engine', 'jade');
    app.use(express.logger('dev'));
    app.use(express.bodyParser());
    app.use(express.methodOverride());
    app.use(app.router);
    app.use(express.static(path.join(__dirname, 'public')));
});

// configure your socket.io instance here

server.listen(app.get('port'), function() {
  // server started
});