解决nodejs socket.io is not allowed by Access-Control-Allow-Origin 跨域问题 - CNode

解决nodejs socket.io is not allowed by Access-Control-Allow-Origin 跨域问题 - CNode

解决nodejs socket.io is not allowed by Access-Control-Allow-Origin 跨域问题

blog:http://www.cnblogs.com/solq/ demo:http://unitysgui.sinaapp.com/websocket/socketio.html

更改 :\node_modules\socket.io\lib\manager.js

if (origin) { // https://developer.mozilla.org/En/HTTP_Access_Control headers['Access-Control-Allow-Origin'] = origin; headers['Access-Control-Allow-Credentials'] = 'true'; //headers['Access-Control-Allow-Headers'] = 'Referer'; } headers['Access-Control-Allow-Origin'] = "*";

在后面添加
headers['Access-Control-Allow-Origin'] = "*";

server.js

var http = require('http'), io = require('socket.io'), sys = require('sys'); server = http.createServer(function(req, res){ res.writeHead(200, {'Content-Type': 'text/html'}); res.end("hello"); }); server.listen(8082); var socket = io.listen(server,{origins: '*:*'}); /* socket.set("origins","*"); socket.set('transports', [ 'websocket' , 'flashsocket' , 'htmlfile' , 'xhr-polling' , 'jsonp-polling' ]);*/ socket.on('connection', function(client){ sys.puts("New client is here!"); client.send("hello world"); client.on('message', function(msg){ sys.puts("client has sent:"+msg); }) ; client.on('disconnect', function(){ sys.puts("Client has disconnected"); }) ; //发送自定义事件 client.emit('news', { hello: 'news world' }); //临听自定义事件 client.on('my other event', function (data) { //console.log(data); }); }); 

client.js

<script src="http://localhost:8082/socket.io/socket.io.js"></script> <script> window.onload=function(){ var url='127.0.0.1:8082'; var socket = io.connect('localhost',{port:8082,rememberTransport:true,timeout:1500}); socket.on('connect', function(){ console.log('connected to server++++++++++++++++'); socket.send('Hi Server...'); }) ; socket.on('message', function(r){ console.log('msg:+++++++++++'+r); }) ; socket.on('disconnect', function(){ console.log('disconnected from server'); }) ; socket.on('news', function (data) { console.log("++++++++++++++++++++++++++"); console.log(data); //发送自定义事件 socket.emit('my other event', { my: 'data' }); }); /*XMLHttpRequest cannot load http://localhost:8082/socket.io/1/?t=1336306289263. Origin null is not allowed by Access-Control-Allow-Origin. var ws = new WebSocket("ws://127.0.0.1:8082"); ws.onopen = function(){console.log('connected to server');} ws.onmessage = function(m){console.log('onmessage');} ws.onclose = function(){}*/ } </script>

https://github.com/LearnBoost/Socket.IO/wiki/Configuring-Socket.IO
注意：经过测试
io.connect('localhost')
localhost:8082 加上端会连不上

 if (origin!='null') { // https://developer.mozilla.org/En/HTTP_Access_Control headers['Access-Control-Allow-Origin'] = origin; headers['Access-Control-Allow-Credentials'] = 'true'; //headers['Access-Control-Allow-Headers'] = 'Referer'; } console.log("console.log(origin)+++++++++++++++++++++++++++++++++++++++") console.log(origin) console.log(req.headers)

origin==null...难怪连不上。。。为什么为是null不太懂原理。。。就不管了，，手动改为全部可以访问就行了

解决IE不能接收服务端信息问题：
sever 要打开这几个协议吧。。。。
然后 clinet html 要放在服务里面，因为IE用的是 jsonp 方式 的话。。。。。。。。。。。只要是 js 请求都要放在服务器..
但是放在服务器里， node server 接收 ie 客户端 连接类型为 flashsocket 方式,,反正是不太了解。。。能工作就行了。。哈哈

socket.set('transports', [ 'websocket' , 'flashsocket' , 'htmlfile' , 'xhr-polling' , 'jsonp-polling' ]);

最后，经过反复测试，，以上打开的协议是 遍历检测有就使用的。。。。
如果把 flashsocket 放在最后，那么 server 跟 ie 就用 jsonp 方式来连接...但是 ie 接收不了数据。。。。有人知道是什么原因，麻烦你告诉我。。好了谢谢...

希望能给个邀请码。。。。。