Images are not updated in jsp page

Hi experts,
I have developed a website for show events and display images of the event, when the user saves the title of the event and event content these things are go to database and at the same time i am creating a directory on the server in which user can upload manually(as user's demand).
but after pasting the images in the directory when i test for the image page, the content and title are shown(content and title are coming from database) but images are not, images are shown after minutes. I have checked that image's path are right. And when i type same path on the address box of my browser, it shows...
The requested resource (/xxxxn/image/NewsImg/xxxxxx) is not available.But after minutes, like 30 to 40 or after i restart my system, it is showning me.
I have disabled the page cache of my jsp pages.. but problem remain. i am using tomcat 6.0.26 for testing.
Please guide me how can i resolve this issue.
Thanks
Shams

Ha ha ha,
I have done it myself...
what i am doing is to, generate a random number by using random class and attach it with image's path like "url rewriting" technique. Like this:
Random ran = new Random();
String imgPath = "./img/img_file_name?" +ran.nextInt(99999);and pass this to the "img" element of html.
I think that this trick forces browser to recollect the data from server and not to use cached data.
But my question with experts is that... I have used on jsp page these code:
response.setHeader( "Pragma", "no-cache" );
response.setHeader( "Cache-Control", "no-cache" );
response.setDateHeader( "Expires", 0 );to tell browser not to catch my page, then why browser is caching my page??
Thanks
Shams

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<af:image source="/render_images" shortDesc="Item"/> Thanks.
zakir
====
Edited by: Zakir Hossain on Apr 23, 2009 11:19 AM

Hi here is solution,
later I will put a project for this solution, right now I am really busy with ADF implementation.
core changes is to solve my problem:
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Murray --- ICQ 71997575
Adobe Community Expert
(If you *MUST* email me, don't LAUGH when you do so!)
==================
http://www.projectseven.com/go
- DW FAQs, Tutorials & Resources
http://www.dwfaq.com - DW FAQs,
Tutorials & Resources
==================
"Dooza" <[email protected]> wrote in message
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