Socket.io 1.0 + express 4.2 =没有套接字连接 [英] Socket.io 1.0 + express 4.2 = no socket connection
问题描述
/?EIO
请求返回404。 Bellow有我的文件:
./ bin / www:
#!/ usr / bin / env node
var debug = require('debug')('generate-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();
//额外的Socket.io
// var server = require('http')。Server(app);
// var io = require('socket.io')(server);
//查看引擎设置
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')));
//请求
app.get('/',function(req,res){
res.render('index',{title: Express'});
});
// Socket请求
//
//io.on('connection',function(socket){
// socket.emit('news' ,{hello:'world'});
// socket.on('我的其他事件',函数(数据){
// console.log(data);
// });
//});
/// catch 404并转发到错误处理程序
app.use(function(req,res,next){
var err = new Error('Not Found') ;
err.status = 404;
next(err);
});
///错误处理程序
//开发错误处理程序
//将打印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
});
});
}
//生产错误处理程序
//没有堆栈跟踪泄漏给用户
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 listen on port'+ app.get('port'));
});
var io = require('socket.io')。listen(server);
io.sockets.on('connection',function(socket){
socket.emit('news',{hello:'world'});
套接字。 on('我的其他事件',函数(数据){
console.log(data);
});
});
所以,一年后,更多的节点研究,我发现以前的答案是相当不完整的,可能会导致使用次优的快递。这是使用Node + Express + Socket.io没有问题的更正确的方法:
在 /bin/www.js 上,替换 var http = require('http');
with var server = require('http')。Server(app);
,并删除 var server = http.createServer(app);
这就是...使用你的
注意:我留下旧的回应未经编辑,以保留评论和相关的上下文。
As stated in title, I'm trying to use socket.io 1.0.4 with express 4.2, and all /?EIO
requests return 404.
Bellow there are my files:
./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);
});
});
So, one year later, and more node studies later, I found that the previous answer is quite incomplete, and may lead to sub-optimal usage of express. This is the more correct approach to use Node + Express + Socket.io without problems:
On /bin/www.js, replace var http = require('http');
with var server = require('http').Server(app);
, and remove var server = http.createServer(app);
And that's it... Use your routes normally, place chats anywhere, no problems anymore.
Note: I left the old response unedited to preserve comments and such relevant and on context.
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