使用Socket.IO Express：服務器無法接收客戶端發出的信號

Question

我正在使用Express和Socket.IO實現Web應用程序中的實時通知服務。客戶端可以連接到服務器，並從服務器接收發射。但是，服務器並未從客戶端接收。在服務器端事件發生時，我甚至已經在Express中設置發佈路由發送給客戶端，並且這些工作正常。

客戶端代碼：

<script type="text/javascript"> 
    var socket = io("https://{$_SERVER['HTTP_HOST']}:7076"); 
    socket.on('message', function(data) { 
     alert(data.message); 
    }); 
    socket.on('connected', function(data) { 
     if(data.success) { 
      socket.emit('join', { 
       empid: '{$_SESSION['userID']}', 
       rooms : [ 
        '0{$_SESSION['MasterID']}', 
        '1{$_SESSION['userDivisionID']}', 
        '2{$_SESSION['userDistrictID']}', 
        '3{$_SESSION['userRegionID']}', 
        '4{$_SESSION['userOfficeID']}' 
       ] 
      }); 
     } 
    }); 
    $(document).ready(function(){ 
     var doc = $(document); 
     doc.on('click', '#join_button', function(){ 
      socket.emit('join', { 
       empid: '{$_SESSION['userID']}', 
       rooms : [ 
        '0{$_SESSION['MasterID']}', 
        '1{$_SESSION['userDivisionID']}', 
        '2{$_SESSION['userDistrictID']}', 
        '3{$_SESSION['userRegionID']}', 
        '4{$_SESSION['userOfficeID']}' 
       ] 
      }); 
     }); 
     doc.on('click', '#emit_button', function() { 
      socket.emit('office message', { 
       office: 3454, 
       message: 'Hello' 
      }); 
     }); 
    }); 
</script> 
<div style="padding: 32px;"> 
    <input id="join_button" type="button" class="btn btn-primary" value="Click 2 Join" /> 
    <input id="emit_button" type="button" class="btn btn-primary" value="Click 2 Emit" style="float:right;"/> 
</div> 

服務器代碼：

var app = require('express')(), 
https = require('https'), 
fs = require('fs'), 
routes = require('./mod/routes'), 
socketRoutes = require('./mod/socket/routes'), 
sockets = require('./mod/socket/sockets'), 
config = require('./mod/config'), 
socketArray = {}, 
options = { 
    key: fs.readFileSync('4096_SSL.key').toString(), 
    cert: fs.readFileSync('wild.crt').toString(), 
    ca: fs.readFileSync('gd_bundle.crt').toString() 
}, 
server = https.createServer(options, app); 

app.use(require('body-parser').urlencoded({ 
    extended: true 
})); 

/**************** 
* Basic Routes * 
****************/ 
app.all('*', routes.setAccessControl); 

app.get('/', routes.base); 

/*--- Server Side Post Routes ---*/ 
app.post('/notify/:type', routes.notify); 

app.get('/employees/:masterid', routes.employees); 

//404 page that doesn't trigger error handling in ajax calls 
app.use(routes.fallback); 

//start listening on alternate https port 
server.listen(7076); 

//have socket.io listen to the same https port. 
var io = require('socket.io')(server); 

/***************** 
* Socket Events * 
*****************/ 

io.on('connection', function(socket) { 
    io.sockets.emit('message', { 
     message: 'New user Connected' 
    }); 
    socket.emit('connected', { 
     success: 1 
    }); 
}); 


io.on('join', function(socket) { 
    console.log('subscribing'); 
}); 

io.on('office message', function(from, data){ 
    console.log(data); 
}); 

服務器響應連接事件就好了，並且客戶端收到「新用戶」的消息。但是，如果我點擊發出該事件的任一按鈕，則服務器上不會發生任何事情。我甚至將它綁定在連接事件的回覆中，以查看它是否是單擊問題。任何想法爲什麼服務器只是沒有響應的事件？

Answer 1

套接字事件必須綁定到套接字本身，而不是IO。嘗試這樣的事情：

io.on("connection", onSocketConnection); 

function onSocketConnection(socket) { 
    io.sockets.emit('message', { messages: 'New user Connected' }); 
    socket.emit('connected' { success: 1 }); 

    socket.on('join', onClientJoined); 
}; 

function onClientJoined(data) { 
    console.log('subscribing'); 
};