在express js和socket.io以及一般的节点中使用路由

发布于 2024-12-25 22:52:58 字数 951 浏览 3 评论 0原文

我正在尝试在 socket.io 中编写一个多通道应用程序。您所在的频道应由您所在的网址定义。如果我在 app.js 中使用永久值进行连接部分，则一切正常。一旦我更改它以便route.page 的路由进行连接，我就会收到错误，该套接字在上下文中不可用。我可以动态加入频道的正确方法是什么？

/app.js

var io = socketio.listen(app);
require('./io')(io);

io.sockets.on('connection', function (socket) {  
  socket.on('debug', function (message) {
    socket.get('channel', function (err, name) {
      socket.in(name).broadcast.emit('debug', message);
    });
  });
});

/io.js

var socketio = function (io) { 
  if (!io) return socketio._io;  
  socketio._io = io;
} 

module.exports = socketio;

/routes/index.js

var io = require('../io')();
exports.page = function(req, res){
  var channel = req.params.id;
  res.render('page', { title: 'PAGE', channel: channel  });
  io.sockets.on('connection', function (socket) {
    socket.join(channel);
    socket.set('channel', channel );
  });
};

原文

I am trying to write a multi channel application in socket.io. The channel you are in should be defined by the url you are on. If I do the joining part in the app.js with permanent values everything works. As soon as I change it so that the route for route.page does the joining I get the error, that sockets is not available in the context. What would be the correct way so that I can dynamically join the channel?

/app.js

var io = socketio.listen(app);
require('./io')(io);

io.sockets.on('connection', function (socket) {  
  socket.on('debug', function (message) {
    socket.get('channel', function (err, name) {
      socket.in(name).broadcast.emit('debug', message);
    });
  });
});

/io.js

var socketio = function (io) { 
  if (!io) return socketio._io;  
  socketio._io = io;
} 

module.exports = socketio;

/routes/index.js

var io = require('../io')();
exports.page = function(req, res){
  var channel = req.params.id;
  res.render('page', { title: 'PAGE', channel: channel  });
  io.sockets.on('connection', function (socket) {
    socket.join(channel);
    socket.set('channel', channel );
  });
};

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愿得七秒忆 2025-01-01 22:52:59

我发现执行多个频道的最简单方法是使用不同的 URL。

例如，我让客户端执行以下操作：

io.connect('/game/1')
io.connect('/system')

在服务器上，我

io.of('/game/1').on('connect' function(socket) {...})
io.of('/system').on('connect' function(socket) {...})

看起来好像在这里连接了两次，但是 socket.io 足够聪明，可以使用单个 websocket 进行此连接（至少在如何进行连接中是这样说的） -使用）。

The easiest way I've found to do multiple channels is off of different URLs.

For example I have the client do the following:

io.connect('/game/1')
io.connect('/system')

and on the server I have

io.of('/game/1').on('connect' function(socket) {...})
io.of('/system').on('connect' function(socket) {...})

It looks like I'm connecting twice here, but socket.io is smart enough to use a single websocket for this connection (at least it says so in the how-to-use).

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