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Servlet page to refresh the page every 3 mibutes
1 Answer(s) 5 years and 3 months ago
Posted in : Servlet Interview Questions
1 Answer(s) 5 years and 3 months ago
Posted in : Servlet Interview Questions
How can i refresh my Java Servlet page at time interval of three minutes?
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February 25, 2008 at 12:57 AM
Hi,
You can use the following attribute on your html(jsp or servlet generated ) page to refresh the page every 3 mibutes
<META HTTP-EQUIV="Refresh"
CONTENT="180; URL=http://www.yoursite.com/serlvet/">;
The contents of the "CONTENT" attribute consist of the number of seconds until the page load takes place, followed by a semicolon and a space, then "URL=" followed by the URL of the site to load. Note that the "URL=" part is within the "CONTENT=" parameter, not a separate parameter.
Since this is an HTTP-EQUIV META tag, it is actually equivalent to sending a Refresh header in the server's actual HTTP headers. If you have control of this server-level stuff, you can do refreshes directly through the headers without having to insert a tag in your HTML documents
I should note, however, that the Refresh header doesn't appear in any of the standards documents regarding the HTTP protocol, so it is technically nonstandard (whether sent as a real header or a META tag), though widely supported.
You can even use javascript to achieve the same thing
<script language=JavaScript>
function Refresher(t) {
if(t) refresh = setTimeout("document.location=? http://www.yoursite.com/serlvet/?;";, t*1000);
}
</script>
And I call the script inside the BODY tag:
<BODY onLoad="Refresher(20)">
Where the parameter is the amount of seconds that IE should wait until refresh.
I hope you find it useful.
Thanks
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