// join和leave
io.on('connection', function(socket){
 socket.join('some room');
 // socket.leave('some room');
});

// say to room
io.to('some room').emit('some event'):
io.in('some room').emit('some event'):

{
 "name": "chatapp-demo",
 "version": "1.0.0",
 "description": "multi room chat app demo, powered by socket.io",
 "main": "app.js",
 "dependencies": {
  "express": "^4.13.3",
  "hbs": "^3.1.0",
  "path": "^0.11.14",
  "socket.io": "^1.3.6"
 },
 "devDependencies": {},
 "author": "wuyanxin",
 "license": "ISC"
}

var express = require('express');
var path = require('path');
var IO = require('socket.io');
var router = express.Router();

var app = express();
var server = require('http').Server(app);
app.use(express.static(path.join(__dirname, 'public')));
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'hbs');

// 创建socket服务
var socketIO = IO(server);
// 房间用户名单
var roomInfo = {};

socketIO.on('connection', function (socket) {
 // 获取请求建立socket连接的url
 // 如: http://localhost:3000/room/room_1, roomID为room_1
 var url = socket.request.headers.referer;
 var splited = url.split('/');
 var roomID = splited[splited.length - 1];  // 获取房间ID
 var user = '';

 socket.on('join', function (userName) {
  user = userName;

  // 将用户昵称加入房间名单中
  if (!roomInfo[roomID]) {
   roomInfo[roomID] = [];
  }
  roomInfo[roomID].push(user);

  socket.join(roomID);  // 加入房间
  // 通知房间内人员
  socketIO.to(roomID).emit('sys', user + '加入了房间', roomInfo[roomID]); 
  console.log(user + '加入了' + roomID);
 });

 socket.on('leave', function () {
  socket.emit('disconnect');
 });

 socket.on('disconnect', function () {
  // 从房间名单中移除
  var index = roomInfo[roomID].indexOf(user);
  if (index !== -1) {
   roomInfo[roomID].splice(index, 1);
  }

  socket.leave(roomID);  // 退出房间
  socketIO.to(roomID).emit('sys', user + '退出了房间', roomInfo[roomID]);
  console.log(user + '退出了' + roomID);
 });

 // 接收用户消息,发送相应的房间
 socket.on('message', function (msg) {
  // 验证如果用户不在房间内则不给发送
  if (roomInfo[roomID].indexOf(user) === -1) { 
   return false;
  }
  socketIO.to(roomID).emit('msg', user, msg);
 });

});

// room page
router.get('/room/:roomID', function (req, res) {
 var roomID = req.params.roomID;

 // 渲染页面数据(见views/room.hbs)
 res.render('room', {
  roomID: roomID,
  users: roomInfo[roomID]
 });
});

app.use('/', router);

server.listen(3000, function () {
 console.log('server listening on port 3000');
});

 
 
 

 
 

 昵称:  

 房间: {{roomID}} 

 当前在线人数: {{users.length}} 

 在线用户: 
{{users}}

 


 
 
 

 按Enter键发送
 退出房间

 
 
 

 
 

 
 

 欢迎您,骚年

 

  
房间列表
  

   
1号房间
   
2号房间
   
3号房间
   
4号房间
   
5号房间
   
6号房间
   
7号房间
   
8号房间
   
9号房间
   
10号房间