socket.io中的房间。如何发送消息？

Question

我是node.js和socket.io的新手，在官方socket.io网站的'开始'代码之后，我写了简单的聊天。然后，我想创建不同的房间，就像在使者中一样。但是依靠官方文档，我不能这样做，因为我自己...... 这里是我的服务器代码：

io.on('connection', function(socket) { 

    var room_name = socket.request.headers.referer; // link of the page, where user connected to socket 

    // connecting to room 
    socket.join(room_name, function(){ 
     //trying to send messages to the current room 
     io.to(room_name, function() { 
      socket.on('chat message', function (msg) { 
       io.emit('chat message', msg); 
      }); 
     }); 
    }); 

}); 

而且我客户端代码：

 $(function() { 
      var socket = io(); 
      //when we submit our form 
      $('form').submit(function(){ 
       //we are sending data to socket.io on server 
       socket.emit('chat message', $('#m').val()); 
       $('#m').val(''); 
       return false; 
      }); 
      //And then we are creating message in our html code 
      socket.on('chat message', function(msg){ 
       $('#messages').append($('<li>').text(msg)); 
      }); 
     }); 

为什么这个代码不起作用？我该怎么办，发送消息到不同的房间？

Answer 1

一下添加到服务器代码：

var room_name = socket.request.headers.referer; // link of page, where user connected to socket 

    //connecting to room 
socket.join(room_name); 
socket.on('chat message', function (msg) { 
    io.to(room_name).emit('chat message', msg); 
});