我正在使用https://github.com/LearnBoost/socket.io中的以下示例代码来启动Socket.IO和Express示例。
当我到localhost时,我收到此错误:
Cannot GET /
我的app.js看起来像这样:
var express = require('express');
var io = require('socket.io');
var server = require('http');
var app = express()
, server = require('http').createServer(app)
, io = io.listen(server);
server.listen(80);
io.sockets.on('connection', function (socket) {
socket.emit('news', { hello: 'world' });
socket.on('my other event', function (data) {
console.log(data);
});
});
我的index.html如下所示:
<script src="/socket.io/socket.io.js"></script>
<script>
var socket = io.connect('http://localhost');
socket.on('news', function (data) {
console.log(data);
socket.emit('my other event', { my: 'data' });
});
</script>
的软件包:
npm ls
├─┬ express@3.0.0rc2
│ ├── commander@0.6.1
│ ├─┬ connect@2.4.2
│ │ ├── bytes@0.1.0
│ │ ├── formidable@1.0.11
│ │ ├── pause@0.0.1
│ │ └── qs@0.4.2
│ ├── cookie@0.0.4
│ ├── crc@0.2.0
│ ├── debug@0.7.0
│ ├── fresh@0.1.0
│ ├── methods@0.0.1
│ ├── mkdirp@0.3.3
│ ├── range-parser@0.0.4
│ └─┬ send@0.0.3
│ └── mime@1.2.6
└─┬ socket.io@0.9.10
├── policyfile@0.0.4
├─┬ redis@0.7.2
│ └── hiredis@0.1.14
└─┬ socket.io-client@0.9.10
├─┬ active-x-obfuscator@0.0.1
│ └── zeparser@0.0.5
├── uglify-js@1.2.5
├─┬ ws@0.4.21
│ ├── commander@0.6.1
│ ├── options@0.0.3
│ └── tinycolor@0.0.1
└── xmlhttprequest@1.4.2
谢谢!
答案 0 :(得分:2)
您没有指示Express为您的index.html
文件提供服务。运行它的最简单方法可能就是创建一个名为public
的目录并将index.html
放入其中,然后修改Express服务器,使其从该目录中提供静态文件:
var express = require('express');
var io = require('socket.io');
var server = require('http');
var path = require('path');
var app = express()
, server = require('http').createServer(app)
, io = io.listen(server);
app.use(express.static(path.join(__dirname, 'public')));
然后在浏览器中访问localhost/index.html
。