我一直在关注socket io聊天示例,我无法连接到localhost!我一遍又一遍地做了,真的很令人沮丧。以下是我一直关注的例子:
http://socket.io/get-started/chat/
这是索引:
<!doctype html>
<html>
<head>
<title>Socket.IO chat</title>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font: 13px Helvetica, Arial; }
form { background: #000; padding: 3px; position: fixed; bottom: 0; width: 100%; }
form input { border: 0; padding: 10px; width: 90%; margin-right: .5%; }
form button { width: 9%; background: rgb(130, 224, 255); border: none; padding: 10px; }
#messages { list-style-type: none; margin: 0; padding: 0; }
#messages li { padding: 5px 10px; }
#messages li:nth-child(odd) { background: #eee; }
</style>
</head>
<body>
<ul id="messages"></ul>
<form action="">
<input id="m" autocomplete="off" /><button>Send</button>
</form>
<script src="https://cdn.socket.io/socket.io-1.2.0.js"></script>
<script src="http://code.jquery.com/jquery-1.11.1.js"></script>
<script>
var socket = io();
$('form').submit(function(){
socket.emit('chat message', $('#m').val());
$('#m').val('');
return false;
});
socket.on('chat message', function(msg){
$('#messages').append($('<li>').text(msg));
});
</script>
</body>
</html>
这里是index.js:
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
app.get('/', function(req, res){
res.sendFile(__dirname + '/index.html');
});
io.on('connection', function(socket){
socket.on('chat message', function(msg){
io.emit('chat message', msg);
});
});
http.listen(3000, function(){
console.log('listening on *:3000');
});
这是package.json:
{
"name": "socket-chat-example",
"version": "0.0.1",
"description": "my first socket.io app",
"dependencies": {
"express": "^4.10.2",
"socket.io": "^1.2.0"
}
}
我已经尝试了一切,它总是给出:
“无法加载资源:服务器响应状态为404(未找到)”
甚至节点index.js
甚至都不会开始收听!
答案 0 :(得分:0)
我无法确定这是问题,但用于Express 4的socket.io文档提示了这一点,这就是我在我的应用中成功使用Express和socket.io的原因:
var app = require('express').createServer();
var server = app.listen(3000);
var io = require('socket.io')(server);
app.get('/', function(req, res){
res.sendFile(__dirname + '/index.html');
});
io.on('connection', function(socket){
socket.on('chat message', function(msg){
io.emit('chat message', msg);
});
});
当然,当您将URL放入浏览器时,您必须包含:3000
端口号。
如果您需要进一步的帮助,请告诉我们找不到导致错误的确切资源:&#34;无法加载资源:服务器响应状态为404(未找到)&#34;。