Re: use http1.1 to find how long a user spend on a site
Michael Weller <[email protected]>
| Newsgroups | gmane.comp.java.sun.servlet |
|---|---|
| Message-ID | <[email protected]> |
I got another suggestion how to find out how long a user was on a
specific page. I'd use some simple JavaScript:
<head>
<script language="javascript">
var start;
function initDate() {
start = new Date();
}
function handleLink(target) {
document.location = "http://foo.com/myServlet?time="+(new
Date()-start)+"&target="+target;
}
</script>
</head>
<body onload="initDate()">
<a href="handleLink('homepage')">To Homepage</a><br>
<a href="handleLink('shop')">To the Shop</a>
</body>
Of course, the big disadvantage of this approach is that users aren't
able to navigate if their client doesn't support JavaScript, or if they
don't want it to :-(
-mw
Gang Zhang schrieb:
>Hi,
> This is just a suggestion. I thought about it before and am pretty sure
>a lot of people also thought about it. There is no way to know excatly how
>long a user has spend on a site (because we don't know how long he/she spend
>on the last page).
>
> However if the useragent is http1.1, then it usually connect to the server
>with just one connection, and when the user close the browser window after
>he/she view the last page, the connection closes. Apache (which uses
>trunked transfer mode) will know the socket is closed, and if we can add a
>message type to the AJP protocal, then the servlet side can know the
>connection is closed, and hence know the user has closed the browser.
>
> Of course there could be the situation where the close connection ack is
>lost in trafic and the end time is longer then the actual time, but that
>should be more accurate then the lost time for the last page in most cases.
>
> Gang
>
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