Node.js，Express，Socket.io应用程序连接错误 [英] Node.js, express, socket.io app connection error
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问题描述
我有一个简单的应用程序，该应用程序将socket.io模块用于node.js.当我使用 node express_server.js 命令运行服务器时，它工作正常，但是当我想在浏览器中打开 http://localhost:8080 页面时，node会抛出一个错误.错误:
I've got a simple app which uses socket.io module for node.js.
When i run my server with node express_server.js command it works ok, but when i want to open my http://localhost:8080 page in browser, node throws an error:
/home/tomek/dev/node/node_modules/express/lib/application.js:119
this._router.handle(req, res, function(err) {
^
TypeError: Cannot read property 'handle' of undefined
at Function.app.handle (/home/tomek/dev/node/node_modules/express/lib/application.js:119:15)
at Server.app (/home/tomek/dev/node/node_modules/express/lib/express.js:28:9)
at Manager.handleRequest (/home/tomek/dev/node/node_modules/socket.io/lib/manager.js:565:28)
at Server.<anonymous> (/home/tomek/dev/node/node_modules/socket.io/lib/manager.js:119:10)
at Server.EventEmitter.emit (events.js:110:17)
at HTTPParser.parserOnIncoming [as onIncoming] (_http_server.js:504:12)
at HTTPParser.parserOnHeadersComplete (_http_common.js:111:23)
at Socket.socketOnData (_http_server.js:357:22)
at Socket.EventEmitter.emit (events.js:107:17)
at readableAddChunk (_stream_readable.js:156:16)
我的express_server.js文件如下:
My express_server.js file looks like:
var express = require('express'),
socket = require('socket.io'),
http = require ('http');
var app = express();
server = http.createServer(app);
server.listen(8080);
var io = socket.listen(server);
io.sockets.on('connection', function (client) {
console.log('-- Client connected --');
});
和index.html:
and index.html:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Chat application</title>
</head>
<body>
<script src="/socket.io/socket.io.js"></script>
<script>
var server = io.connect('http://localhost:8080');
</script>
</body>
</html>
推荐答案
未定义路由器.在创建应用程序后尝试添加此代码(var app = express()):
There is no router defined. Try add this after creating the app (var app = express()):
app.get('/', function(req, res) {
// res.send('hello world');
res.sendfile('index.html');
});
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