Socket.io 1.0 + express 4.2 = 无套接字连接 [英] Socket.io 1.0 + express 4.2 = no socket connection
问题描述
如标题所述,我正在尝试将 socket.io 1.0.4 与 express 4.2 一起使用,并且所有 /?EIO
请求都返回 404.
As stated in title, I'm trying to use socket.io 1.0.4 with express 4.2, and all /?EIO
requests return 404.
下面是我的文件:
./bin/www :
#!/usr/bin/env node
var debug = require('debug')('generated-express-app');
var app = require('../app');
app.set('port', process.env.PORT || 3000);
var server = app.listen(app.get('port'), function() {
debug('Express server listening on port ' + server.address().port);
});
./app.js :
var express = require('express');
var path = require('path');
var favicon = require('static-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var app = express();
// Extras para Socket.io
// var server = require('http').Server(app);
// var io = require('socket.io')(server);
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(favicon());
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
app.use(require('less-middleware')(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));
// Requests
app.get('/', function (req, res) {
res.render('index', { title: 'Express' });
});
// Socket requests
//
//io.on('connection', function (socket) {
// socket.emit('news', { hello: 'world' });
// socket.on('my other event', function (data) {
// console.log(data);
// });
//});
/// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
/// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
module.exports = app;
var server = require('http').createServer(app);
server.listen(app.get('port'), function(){
console.log('Express listening on port ' + app.get('port'));
});
var io = require('socket.io').listen(server);
io.sockets.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
推荐答案
我对我的文件进行了更多的修改,然后让它开始工作,这是我如何让它工作的:
I fiddled more with my files, and got it to work, here is how I got it to work:
./bin/www : 需要保留 require app.js,否则将无法工作.
./bin/www : Need to keep the require app.js, or it won't work.
#!/usr/bin/env node
//var debug = require('debug')('generated-express-app');
var app = require('../app');
//app.set('port', process.env.PORT || 3000);
//
//var server = app.listen(app.get('port'), function() {
// debug('Express server listening on port ' + server.address().port);
//});
//
//var io = require('socket.io').listen(server);
//
//io.sockets.on('connection', function (socket) {
// socket.emit('news', { hello: 'world' });
// socket.on('my other event', function (data) {
// console.log(data);
// });
//});
./app.js :www 上的所有内容都在此处,在最后一次导出之前.
./app.js : All that was on www goes here, before the last export.
var express = require('express');
var path = require('path');
var favicon = require('static-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var app = express();
// Extras para Socket.io
// var server = require('http').Server(app);
// var io = require('socket.io')(server);
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(favicon());
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded());
app.use(cookieParser());
app.use(require('less-middleware')(path.join(__dirname, 'public')));
app.use(express.static(path.join(__dirname, 'public')));
// Requests
app.get('/', function (req, res) {
res.render('index', { title: 'Express' });
});
// Socket requests
//
//io.on('connection', function (socket) {
// socket.emit('news', { hello: 'world' });
// socket.on('my other event', function (data) {
// console.log(data);
// });
//});
/// catch 404 and forward to error handler
app.use(function(req, res, next) {
var err = new Error('Not Found');
err.status = 404;
next(err);
});
/// error handlers
// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: err
});
});
}
// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
res.status(err.status || 500);
res.render('error', {
message: err.message,
error: {}
});
});
var debug = require('debug')('generated-express-app');
//var app = require('../app');
app.set('port', process.env.PORT || 3000);
var server = app.listen(app.get('port'), function() {
debug('Express server listening on port ' + server.address().port);
});
var io = require('socket.io').listen(server);
io.sockets.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
module.exports = app;
我使用 express 生成器来生成项目,禁用了路由,因为 Socket.io 似乎不支持 express 路由.
I used the express generator to gen the project, disabled the routes, as it seems that Socket.io won't support express routes.
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