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当我尝试使用简单的服务器应用程序并尝试使用客户端请求时,我只获得了“提供静态内容”而不是手抖动.在调试的浏览器中,我可以看到“Hello S …”,在服务器端：
# node socket-server.js info - socket.io started debug - served static content /socket.io.js debug - served static content /socket.io.js
我不知道从哪里开始寻找问题(相同的脚本在本地开发中工作)
为什么node.js只提供静态内容而不进行握手？
iptables允许8866端口：#iptables -L
Chain INPUT (policy ACCEPT) target prot opt source desTination ACCEPT all -- anywhere anywhere ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT tcp -- anywhere anywhere tcp dpt:www ACCEPT tcp -- anywhere anywhere tcp dpt:8866 DROP all -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source desTination Chain OUTPUT (policy ACCEPT) target prot opt source desTination ACCEPT tcp -- anywhere anywhere tcp dpt:8866
这是一个简单的服务器应用程序’socket-server.js’：
// require http module (to start server) and Socket.IO var http = require('http'),io = require('socket.io'); // Start the server at port 8866 var server = http.createServer(function(req,res){ // Send HTML headers and message res.writeHead(200,{ 'Content-Type': 'text/html' }); res.end('<h1>Hello Socket Lover!</h1>'); }); server.listen(8866); // Create a Socket.IO instance,passing it our server var socket = io.listen(server); // Add a connect listener socket.on('connection',function(client){ // Create perioDical which ends a message to the client every 5 seconds var interval = seTinterval(function() { client.send('This is a message from the server! ' + new Date().getTime()); },5000); // success! Now listen to messages to be received client.on('message',function(event){ console.log('Received message from client!',event); }); client.on('disconnect',function(){ clearInterval(interval); console.log('Server has disconnected'); }); });
这是一个简单的客户端(SERVERDOMAIN被替换为真实域)：
<!DOCTYPE html> <html> <head> <script src="http://SERVERDOMAIN:8866/socket.io/socket.io.js"></script> <script> // Create SocketIO instance var socket = io.connect('SERVERDOMAIN:8866'); // Add a connect listener socket.on('connect',function() { log('<span style="color:green;">Client has connected to the server!</span>'); }); // Add a connect listener socket.on('message',function(data) { log('Received a message from the server: ' + data); }); // Add a disconnect listener socket.on('disconnect',function() { log('<span style="color:red;">The client has disconnected!</span>'); }); // Sends a message to the server via sockets function sendmessageToServer(messagE) { socket.send(messagE); log('<span style="color:#888">Sending "' + message + '" to the server!</span>'); } // Outputs to console and list function log(messagE) { var li = document.createElement('li'); li.innerHTML = message; document.getElementById('message-list').appendChild(li); } </script> </head> <body> <p>messages will appear below (and in the consolE).</p><br /> <ul id="message-list"></ul> <ul style="margin:20px 0 0 20px;"> <li>Type <code>socket.disconnect()</code> to disconnect</li> <li>Type <code>socket.connect()</code> to reconnect</li> <li>Type <code>sendmessageToServer('Your message')</code> to send a message to the server</li> </ul> </body> </html>
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