因此，我最近一直在尝试了解Socket.io，但是我不是一个非常出色的程序员，几乎我可以在网上找到的每个示例(相信我已经花了数小时的时间)都包含一些额外的内容，使事情复杂化.许多示例都会使我感到困惑，或者连接到一些奇怪的数据库，或者使用coffeescript或大量的JS库将事情弄乱.
So, I have been trying to understand Socket.io lately, but I am not a supergreat programmer, and almost every example I can find on the web (believe me I have looked for hours and hours), has extra stuff that complicates things. A lot of the examples do a bunch of things that confuse me, or connect to some weird database, or use coffeescript or tons of JS libraries that clutter things up.
我很乐意看到一个基本的，可以正常运行的示例，其中服务器仅每10秒向客户端发送一条消息，说明现在几点，然后客户端将该数据写入页面或引发警报，很简单.然后，我可以从那里弄清楚事情，添加数据库连接之类的我需要的东西.是的，我已经检查了socket.io网站上的示例，但它们对我不起作用，我也不知道它们在做什么
I'd love to see a basic, functioning example where the server just sends a message to the client every 10 seconds, saying what time it is, and the client writes that data to the page or throws up an alert, something very simple. Then I can figure things out from there, add stuff I need like db connections, etc. And yes I have checked the examples on the socket.io site and they don't work for me, and I don't understand what they do.
推荐答案编辑:我认为最好向任何人咨询出色的聊天示例在Socket.IO入门页面上.自从我提供了此答案以来，该API已得到了相当简化.话虽如此，这是针对较新的API的原始答案已更新的大小.
I feel it's better for anyone to consult the excellent chat example on the Socket.IO getting started page. The API has been quite simplified since I provided this answer. That being said, here is the original answer updated small-small for the newer API.
只是因为我今天感觉很好:
Just because I feel nice today:
<!doctype html> <html> <head> <script src='/socket.io/socket.io.js'></script> <script> var socket = io(); socket.on('welcome', function(data) { addMessage(data.message); // Respond with a message including this clients' id sent from the server socket.emit('i am client', {data: 'foo!', id: data.id}); }); socket.on('time', function(data) { addMessage(data.time); }); socket.on('error', console.error.bind(console)); socket.on('message', console.log.bind(console)); function addMessage(message) { var text = document.createTextNode(message), el = document.createElement('li'), messages = document.getElementById('messages'); el.appendChild(text); messages.appendChild(el); } </script> </head> <body> <ul id='messages'></ul> </body> </html>app.js
var http = require('http'), fs = require('fs'), // NEVER use a Sync function except at start-up! index = fs.readFileSync(__dirname + '/index.html'); // Send index.html to all requests var app = http.createServer(function(req, res) { res.writeHead(200, {'Content-Type': 'text/html'}); res.end(index); }); // Socket.io server listens to our app var io = require('socket.io').listen(app); // Send current time to all connected clients function sendTime() { io.emit('time', { time: new Date().toJSON() }); } // Send current time every 10 secs setInterval(sendTime, 10000); // Emit welcome message on connection io.on('connection', function(socket) { // Use socket to communicate with this particular client only, sending it it's own id socket.emit('welcome', { message: 'Welcome!', id: socket.id }); socket.on('i am client', console.log); }); app.listen(3000);更多推荐
最简单的Socket.io示例的示例是什么?
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