How can i use websocket protocol in js?

Question

ws = new MozWebSocket("ws://localhost:8080/html5WebSocket/mywebsocket.do");

I used the code above to execute websocket request but found that the connection was closed immediately with the method onclose called.

ws.onclose = function(evt) {
        alert("close");
    };

The net tab of firebug shows the request url from browser to tomcat is http://localhost:8080/html5WebSocket/mywebsocket.do. I expected the url to be ws://localhost:8080/html5WebSocket/mywebsocket.do.

What have I done wrong?

This should be tagged as JavaScript, not Java, two completely different things. Retagged for you — Alex Coleman
– Alex Coleman, Commented Aug 24, 2012 at 5:34

Florian Salihovic · Accepted Answer · 2012-08-24 07:57:58Z

2

MozWebSocket was used in Firefox 6-10, if you're using a newer Version, use WebSocket for as constructor method.

answered Aug 24, 2012 at 7:57

Florian Salihovic

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1 Comment

liam xu Over a year ago

I tested this example in firefox 14.Maybe i need to change it to firefox 10.thanks!

Dietrich Epp · Accepted Answer · 2012-08-24 08:23:13Z

0

It is normal to see a connection to http://... when using web sockets, since the web socket handshake is otherwise indistinguishable from an HTTP "upgrade" request.

The problem is likely server-side, not client-side.

answered Aug 24, 2012 at 8:23

Dietrich Epp

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Comments

Hendrik Ebbers · Accepted Answer · 2012-08-24 09:19:06Z

0

I use the "WebSocket"-class in javascript. It works in Safara, Firefox and Chrome. Here is an example:

var ws = new WebSocket(wsUrl);
ws.onopen = function() {
    ...
};
ws.onmessage = function(evt) {
   ...
};
ws.onclose = function() {
   ...
};

On serverside i work with Tomcat & Jetty-Websocket (http://wiki.eclipse.org/Jetty/Feature/WebSockets)

answered Aug 24, 2012 at 9:19

Hendrik Ebbers

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1 Comment

liam xu Over a year ago

Why it can't works in the latest version of IE 9 and Chrome 24 according to my test?I nearly used all the approaches.

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