socket.io客户端未收到 [英] socket.io client not receiving

问题描述

我在nodejs中使用socket.io，并且能够将数据从客户端发送到服务器.但是当我从服务器发出消息时，客户端似乎没有收到此消息. 我想念什么?

I am using socket.io in nodejs and I am able to send data from client to server. But when I emit from server, the client does not seem to be receiving this... What am i missing ?

socket = io.listen(app);
socket.sockets.on('connection', function(client){ 
client.on('something-from-client', function(msg){
           console.log(msg);
       //do something.
       client.emit('some-result',{"total":docs.length});
   });
});

客户端:

var socket = io.connect('http://localhost:9999');
socket.on('some-result', function(data){
    console.log('received from server', data);
});
socket.emit("something-from-client",  {"lat":lat, "lng":lng});

推荐答案

好了，如果正在使用express，则需要在服务器端进行一些小的更改

Ok got it working, if express is being used, some minor changes need to be done on server side

var port = 8111;
var server = express.createServer();
io = require('socket.io').listen(server);
server.listen(port);

io.sockets.on('connection', function (socket) {
    socket.emit('news', { hello: 'world' });
    socket.on('my other event', function (data) {
        console.log(data);
    });
});

按承诺-工作代码- https://github.com/parj/node-websocket-demo/tree/socket_emit

CF参考- http://socket.io/#how-to-use

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