Http request and response headers

Hello,
I have tried request.getHeader() method along with getHeaderNames().
with HeaderNames() got many results as - accept, referer etc.
still didnt get the exact meaning and use of them
where shall I get the exact info abt the same?
can u pls help me in foinding it out?
thanx in advance
regards
devayani

Hi,
Generally header information is for the browsers to intimate the required behavior of the page being displayed.
Example if you don�t wish to cache the page, you can set this in the header of the page like this.

response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 1);

Which is equlivent of adding this html tags in the static html page.

<meta HTTP-EQUIV="Pragma" content="no-cache">
<meta HTTP-EQUIV="Expires" content="-1">

Like this there are many more header information that can be set. Details can be found in some good HTML books or even Goggle can help you�.

Regards
Arun

For a comprehensive treatment, read RFC 2616 - HTTP/1.1:

headers in general

request headers

response headers
[ February 16, 2006: Message edited by: Ulf Dittmer ]

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