NodeJS + socket.io:简单的客户端/服务器示例无法正常工作
hel*_*lix 7 javascript comet node.js socket.io
我正在使用NodeJS v0.4.8和最新版本的socket.io
npm install socket.io
在Ubuntu上:
Linux mars 2.6.38-8-generic#42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux
遗憾的是,以下代码不会在客户端或服务器端产生任何输出.
有人有线索吗？
服务器端
var http = require('http'),
io = require('socket.io'),
fs = require('fs'),
sys = require('sys');
respcont = fs.readFileSync('testclient.js');
server = http.createServer(function(req, res){
res.writeHead(200, {'Content-Type': 'text/html'});
res.end(respcont);
});
server.listen(8082);
var socket = io.listen(server);
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"); }) ;
});
客户端
<html>
<body>
<script type="text/javascript" src="http://localhost:8082/socket.io/socket.io.js"></script>
<script>
var socket = new io.Socket(null,{port:8082,rememberTransport:true,timeout:1500});
socket.connect();
socket.on('connect', function() {
console.log('connected to server');
socket.send('Hi Server...');
});
socket.on('message', function() {
console.log('received a message!');
});
socket.on('disconnect', function() {
console.log('disconnected from server');
});
</script>
</body>
</html>
NodeJS的输出(不是sys.puts("...")调用)是:
info - socket.io启动调试 - 服务静态/socket.io.js调试 - 客户端授权信息 - 握手授权信息 - handshaken b61a5c2751c1c8c8493db4b79d19e779
我也（像 Derrish 一样）喜欢使用Express框架来简化我的工作（太棒了:)）。您可以从http://dl.dropbox.com/u/314941/socketio.zip下载并提取此示例。我相信你甚至不必安装这些模块，因为我已经在本地捆绑了它们（只需运行），这要归功于 npm :)。
\n\n如何安装：
\n\nalfred@alfred-laptop:~/tmp/socketio$ uname -a\nLinux alfred-laptop 2.6.35-28-generic #50-Ubuntu SMP Fri Mar 18 19:00:26 UTC 2011 i686 GNU/Linux\nalfred@alfred-laptop:~/tmp$ wget http://dl.dropbox.com/u/314941/socketio.zip\nalfred@alfred-laptop:~/tmp$ unzip socketio.zip\nalfred@alfred-laptop:~/tmp$ cd socketio/\nalfred@alfred-laptop:~/tmp/socketio$ node -v\nv0.4.7\nalfred@alfred-laptop:~/tmp/socketio$ npm -v\n1.0.6\nalfred@alfred-laptop:~/tmp/socketio$ node app.js\n代码：
\n\n应用程序.js：
\n\n// npm install express\n// npm install socket.io\n\nvar sys = require(\'sys\'),\n express = require(\'express\'),\n app = express.createServer(\'127.0.0.1\'),\n io = require(\'socket.io\'); \n\napp.use(express.static(__dirname + \'/public\'));\n\napp.get(\'/\', function (req, res) {\n res.send(\'Hello World\');\n});\n\napp.listen(3000);\n\nvar socket = io.listen(app); \n\nsocket.on(\'connection\', function (client){ \n // new client is here!\n setTimeout(function () {\n client.send(\'Waited two seconds!\');\n }, 2000);\n\n client.on(\'message\', function () {\n }) ;\n\n client.on(\'disconnect\', function () {\n });\n});\n公共/index.html：
\n\n<html>\n<p id="text">socket.io</p>\n\n<script src="socket.io/socket.io.js"></script> \n<script src="jquery-1.6.1.min.js"></script><!-- Downloaded Jquery -->\n\n<script> \n $(document).ready(function(){\n\n var socket = new io.Socket(),\n text = $(\'#text\');\n\n socket.connect();\n\n socket.on(\'connect\', function () {\n text.html(\'connected\');\n });\n\n socket.on(\'message\', function (msg) {\n text.html(msg);\n });\n\n socket.on(\'disconnect\', function () {\n text.html(\'disconnected\');\n });\n\n });\n</script> \n我的模块列表：
\n\nalfred@alfred-laptop:~/tmp/socketio$ npm ls\n/home/alfred/tmp/socketio\n\xe2\x94\x9c\xe2\x94\x80\xe2\x94\xac express@2.3.11 \n\xe2\x94\x82 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 connect@1.4.6 \n\xe2\x94\x82 \xe2\x94\x9c\xe2\x94\x80\xe2\x94\x80 mime@1.2.2 \n\xe2\x94\x82 \xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 qs@0.1.0 \n\xe2\x94\x94\xe2\x94\x80\xe2\x94\x80 socket.io@0.6.18\n安装的模块（非必需）：
\n\nnpm install express\nnpm install socket.io\n浏览器会显示：
\n\n- \n
socket.io开始时，但您可能看不到它，因为它将被替换为connected. \nconnected当用户连接到 socket.io 时。 \n- 2秒后显示
Waited two seconds!
\n
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