Show continuous connection message in nodejs socket.io

问题

I am trying to develop a live chat application using laravel. I face a problem. When I run "node index.js" , 'A connection has made' message has shown continuously in command prompt.

my index.js file is:

var app = require('express')();
var server = require('http').Server(app);
var io = require('socket.io')(server);

server.listen(3000);
app.get('/', function(request, response){
    response.sendFile(__dirname+ '/index.html');        
});

io.on('connection', function(socket){
    console.log('A connection has made');
    // socket.on('chat.message', function(message){
    //  io.emit('chat.message', message);
    // });
});

My index.html page is:

<!DOCTYPE html>
<html>
    <head>
        <title>Live Chat</title>
    </head>
    <body>
        <div class="container" id="chat">
            <h1> Chat System </h1>
        </div>
    <script type="text/javascript">
    var socket = io();
    </script>
    </body>
</html>

How can I solve it?

回答1:

The usual reason that your client is continually trying to connect over and over again is because you have a mismatched client and server version of socket.io making them incompatible. You don't show how you load the socket.io Javascript in your web page, but if you do it like this:

<script src="/socket.io/socket.io.js"></script>

Then, you will always get the version that exactly matches your server from your server automatically (this is a route that the socket.io server automatically adds to your Express server).

If you are loading socket.io from a CDN, then you have to either switch to the above to load it from your own server or manually specify the exact same version from the CDN as you are running on the server.

来源：https://stackoverflow.com/questions/51698594/show-continuous-connection-message-in-nodejs-socket-io

标签

node.js

laravel

Socket.IO

livechat