[英]NodeJS + socket.io: simple Client/Server example not working
我正在使用NodeJS v0.4.8和最新版本的socket.io
npm安裝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
不幸的是,以下代碼不會在客戶端或服務器端產生任何輸出。
有人知道嗎?
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"); }) ;
});
<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的輸出(不調用sys.puts(“ ...”))為:
信息-socket.io啟動調試-服務於靜態/socket.io.js調試-客戶端授權信息-握手授權信息-握手b61a5c2751c1c8c8493db4b79d19e779
var express = require('express');
var app = express.createServer();
var socket = require('socket.io');
app.configure(function(){
app.use(express.static(__dirname + '/'));
});
var server = app.listen(8081);
var io = socket.listen(server);
io.sockets.on('connection', function (socket) {
console.log("connnect");
socket.on('disconnect', function (socket) {
console.log("disconnect");
});
});
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://localhost:8081');
</script>
您可以使用下面的鏈接派生代碼https://github.com/sreekumar-kr/Expree3.0---Socket.IO
我也像Derrish一樣喜歡使用表達框架來簡化我的工作( AWESOME :) 。 您可以從http://dl.dropbox.com/u/314941/socketio.zip下載並解壓縮此樣本。 我相信您甚至不必安裝這些模塊,因為感謝npm :),我已經將它們捆綁在本地( 只需運行 )。
alfred@alfred-laptop:~/tmp/socketio$ uname -a
Linux alfred-laptop 2.6.35-28-generic #50-Ubuntu SMP Fri Mar 18 19:00:26 UTC 2011 i686 GNU/Linux
alfred@alfred-laptop:~/tmp$ wget http://dl.dropbox.com/u/314941/socketio.zip
alfred@alfred-laptop:~/tmp$ unzip socketio.zip
alfred@alfred-laptop:~/tmp$ cd socketio/
alfred@alfred-laptop:~/tmp/socketio$ node -v
v0.4.7
alfred@alfred-laptop:~/tmp/socketio$ npm -v
1.0.6
alfred@alfred-laptop:~/tmp/socketio$ node app.js
app.js:
// npm install express
// npm install socket.io
var sys = require('sys'),
express = require('express'),
app = express.createServer('127.0.0.1'),
io = require('socket.io');
app.use(express.static(__dirname + '/public'));
app.get('/', function (req, res) {
res.send('Hello World');
});
app.listen(3000);
var socket = io.listen(app);
socket.on('connection', function (client){
// new client is here!
setTimeout(function () {
client.send('Waited two seconds!');
}, 2000);
client.on('message', function () {
}) ;
client.on('disconnect', function () {
});
});
public / index.html:
<html>
<p id="text">socket.io</p>
<script src="socket.io/socket.io.js"></script>
<script src="jquery-1.6.1.min.js"></script><!-- Downloaded Jquery -->
<script>
$(document).ready(function(){
var socket = new io.Socket(),
text = $('#text');
socket.connect();
socket.on('connect', function () {
text.html('connected');
});
socket.on('message', function (msg) {
text.html(msg);
});
socket.on('disconnect', function () {
text.html('disconnected');
});
});
</script>
alfred@alfred-laptop:~/tmp/socketio$ npm ls
/home/alfred/tmp/socketio
├─┬ express@2.3.11
│ ├── connect@1.4.6
│ ├── mime@1.2.2
│ └── qs@0.1.0
└── socket.io@0.6.18
npm install express
npm install socket.io
socket.io
,但您可能看不到它,因為它將被connected
代替。 connected
,當用戶連接到socket.io。 Waited two seconds!
我以您的示例為例,並使用express將其放在了節點應用程序中。 您的HTML代碼被放置在public下的靜態HTML文件中。 您的示例工作正常。 代碼如下所示。 我想確保socket.io腳本文件和HTML文件均已正確提供。
var http = require('http'),
io = require('socket.io'),
express = require('express');
var app = module.exports = express.createServer();
// Configuration
app.configure(function(){
app.set('views', __dirname + '/views');
app.set('view engine', 'jade');
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router);
app.use(express.static(__dirname + '/public'));
});
if (!module.parent) {
app.listen(9000);
console.log("server started at %s", (new Date()).toUTCString());
console.log("listening on port %d", app.address().port);
}
// socket.io
var socket = io.listen(app);
socket.on('connection', function(client){
console.log("New client is here!");
client.send("hello world");
client.on('message', function(msg){ console.log("client has sent:"+msg); }) ;
client.on('disconnect', function(){ console.log("Client has disconnected"); }) ;
client.on('disconnect', function(){ })
});
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.