[英]Node.js + Express + socket.io - socket.io not serving properly
我知道这是一个非常讨论的话题,但我似乎仍然无法使它探索Internet上的每个解决方案。 我的app.js
代码如下所示:
var express = require('express');
var io = require('socket.io');
var app = express();
app.use(express.static(__dirname + '/public'));
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
/***************************************/
/*********** START SERVER **************/
/***************************************/
var server = app.listen(3000, '0.0.0.0', function() {
console.log('Listening on port %d', server.address().port);
});
io = io.listen(server);
/***************************************/
/*********** COMMUNICATIONS ************/
/***************************************/
io.sockets.on('connection', function(socket){..... //continues
index.jade
文件的相关部分:
script(type='text/javascript' src='/socket.io/socket.io.js')
script(type='text/javascript' src='http://code.jquery.com/jquery-1.10.2.min.js')
script(type='text/javascript' src='/javascripts/index.js')
我的index.js
看起来像这样:
//init the connection with the server
var socket = io.connect('/');
socket.on('message', function(message){
//parse message
message = JSON.parse(message);
alert(message);
});
$(function (){
var data = {message: 'test test test'};
socket.send(JSON.stringify(data));
});
在chrome开发人员控制台中查看时,出现以下错误:
socket.io.js:2935 GET http://arielschon12.koding.io/socket.io/?EIO=3&transport=polling&t=1423347369182-0
arielschon12.koding.io/:1 XMLHttpRequest cannot load http://arielschon12.koding.io/socket.io/?EIO=3&transport=polling&t=1423347369182-0. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://arielschon12.koding.io:3000' is therefore not allowed access. The response had HTTP status code 404.
socket.io.js:2935 GET http://arielschon12.koding.io/socket.io/?EIO=3&transport=polling&t=1423347370898-1
arielschon12.koding.io/:1 XMLHttpRequest cannot load http://arielschon12.koding.io/socket.io/?EIO=3&transport=polling&t=1423347370898-1. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://arielschon12.koding.io:3000' is therefore not allowed access. The response had HTTP status code 404.
socket.io.js:2935 GET http://arielschon12.koding.io/socket.io/?EIO=3&transport=polling&t=1423347372842-2
arielschon12.koding.io/:1 XMLHttpRequest cannot load http://arielschon12.koding.io/socket.io/?EIO=3&transport=polling&t=1423347372842-2. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://arielschon12.koding.io:3000' is therefore not allowed access. The response had HTTP status code 404.
每隔几秒钟就会弹出更多相同类型的错误。.我不知道该怎么办。 任何帮助表示赞赏!
在客户端,您需要:
var socket =io();
socket.on('connect',function(){});
和服务器端:
var app = require('express')();
var server = require('http').Server(app);
var io = require('socket.io')(server);
server.listen(80);
io.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
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