这可能会有所帮助：
server.js（没有有关redis的代码）
var usernames = {};var rooms = ['Lobby'];io.sockets.on('connection', function(socket) { socket.on('adduser', function(username) { socket.username = username; socket.room = 'Lobby'; usernames[username] = username; socket.join('Lobby'); socket.emit('updatechat', 'SERVER', 'you have connected to Lobby'); socket.broadcast.to('Lobby').emit('updatechat', 'SERVER', username + ' has connected to this room'); socket.emit('updaterooms', rooms, 'Lobby'); }); socket.on('create', function(room) { rooms.push(room); socket.emit('updaterooms', rooms, socket.room); }); socket.on('sendchat', function(data) { io.sockets["in"](socket.room).emit('updatechat', socket.username, data); }); socket.on('switchRoom', function(newroom) { var oldroom; oldroom = socket.room; socket.leave(socket.room); socket.join(newroom); socket.emit('updatechat', 'SERVER', 'you have connected to ' + newroom); socket.broadcast.to(oldroom).emit('updatechat', 'SERVER', socket.username + ' has left this room'); socket.room = newroom; socket.broadcast.to(newroom).emit('updatechat', 'SERVER', socket.username + ' has joined this room'); socket.emit('updaterooms', rooms, newroom); }); socket.on('disconnect', function() { delete usernames[socket.username]; io.sockets.emit('updateusers', usernames); socket.broadcast.emit('updatechat', 'SERVER', socket.username + ' has disconnected'); socket.leave(socket.room); }); });index.html
<head>... // your other pre<script>var socket = io.connect('http://localhost:8000');socket.on('connect', function(){ socket.emit('adduser', prompt("What's your name: "));});socket.on('updatechat', function (username, data) { $('#conversation').append('<b>'+ username + ':</b> ' + data + '<br>');});socket.on('updaterooms', function (rooms, current_room) { $('#rooms').empty(); $.each(rooms, function(key, value) { if(value == current_room){ $('#rooms').append('<div>' + value + '</div>'); } else { $('#rooms').append('<div><a href="#" onclick="switchRoom(''+value+'')">' + value + '</a></div>'); } });});function switchRoom(room){ socket.emit('switchRoom', room);}$(function(){ $('#datasend').click( function() { var message = $('#data').val(); $('#data').val(''); socket.emit('sendchat', message); }); $('#data').keypress(function(e) { if(e.which == 13) { $(this).blur(); $('#datasend').focus().click(); } }); $('#roombutton').click(function(){ var name = $('#roomname').val(); $('#roomname').val(''); socket.emit('create', name) });});</script></head><body> <div > <b>ROOMS</b> <div id="rooms"></div> </div> <div > <div id="conversation"></div> <input id="data" /> <input type="button" id="datasend" value="send" /> </div> <div > <div id="room creation"></div> <input id="roomname" /> <input type="button" id="roombutton" value="create room" /> </div> ... // the rest of your page</body>
