Socket.io连接不止一次

Question

I'm trying to display my connection to a page with socket, but when I reload my page, the message is displayed 2 times, when i reload again, 3 times etc ...

Here is the code node js.

.get('/compte/', function(req, res) {
res.render('compte.ejs');
io.sockets.on('connection', function(socket){
    socket.on("new_client", function(message){
       console.log(message);
    });
});

});

Here is the code html / script.

<script src="/socket.io/socket.io.js"></script>
    <script>
        var socket = io.connect('http://localhost:8080');

        socket.emit('new_client', "hello");
    </script>

and here is the displaying after 2 reload.

hello

hello
hello

hello
hello
hello

I hope to have been clear about my problem. Thank you.

Answer 1

Actually, your client does not connect more than once, but you add an event listener for SocketIO connections on each get request of /compte/ . They are accumulated in io.sockets .

Try moving the SocketIO event handler out of the request handler:

.get('/compte/', function(req, res) {
    res.render('compte.ejs');
});

io.sockets.on('connection', function(socket){
    socket.on("new_client", function(message){
       console.log(message);
    });
});