GET http:// localhost:3000/socket.io/socket.io.js 404(未找到)

Question

我正在尝试将数据流式传输到浏览器.但是,我正在努力将它连接到浏览器.这是我的HTML:

<ul class="tweets"></ul>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script src="/socket.io/socket.io.js"></script>
<script>
    var socket = io.connect();
    jQuery(function ($) {
        var tweetList = $('ul.tweets');
        socket.on('tweet', function (data) {
            tweetList .prepend('<li>' + data.user + ': ' + data.text + '</li>'); 
        }); 
    });
</script>

这是app.js的相关部分:

var express = require('express')
    , twitter = require('ntwitter')
  , http = require('http')
  , path = require('path');

var app = express();

var io = require('socket.io').listen(app);

app.get('/', function (req, res) { res.sendfile(__dirname + '/index.html'); });

app.listen(app.get('port'), function(){
   console.log("Express server listening on port " + app.get('port'));
});

io.sockets.volatile.emit('tweets', {
            user: data.user.screen_name,
            text: data.text,
            geo : geo,
            latitude: latitude,
            longitude: longitude
                });

我通过我的packages.json文件安装了socket.io 0.9.16:

"dependencies": {
    "express": "3.2.6",
    "jade": "*",
    "ntwitter":"0.2.10",
    "socket.io":"0.9.x"
  }

有人可以帮我从这里出去吗？为什么找不到文件？

深入挖掘.为了测试套接字,我把它放在app.js中:

var socket = io.listen(app);

我收到错误:

TypeError: Object #<Manager> has no method 'listen'
    at Object.<anonymous> (/home/andy/dev/node/mytwittermap/app.js:49:17)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:901:3

Answer 1

您的设置需要看起来像这样:

var app     = express();
var server  = require('http').createServer(app);
var io      = require('socket.io').listen(server);
...
server.listen(app.get('port')); // not 'app.listen'!

Answer 2

你能试试这个:

var http = require('http');
var app = express();
var server = http.createServer(app);

var io = require('socket.io').listen(server);

我想,你必须实例化socket.io服务器.

Answer 3

• 您需要实例化socket.io连接，然后
• 您需要使用server.listen()而不是app.listen()

尝试这样的事情：

// at the top of app.js
var app     = express();
var server  = require('http').createServer(app);
var io      = require('socket.io').listen(server);

// your code

// at the bottom of app.js
server.listen('3000', () => {
  console.log('Server listening on Port 3000');
})