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Apache Tomcat General discussion of the Apache Tomcat servlet container. For discussions specific to the Professional Apache Tomcat book, please see the book discussion forum for that book.
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Old July 20th, 2006, 11:55 PM
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Default Configure Tomcat 5.5.17

Hi guys,

   I m wondering is it possible to clear or stop caching in Apache Tomcat web server? For example, Reload or Refreshing page is not allowed. Another example is like www.maybank2u.com.my, after performing some transactions, Back or Refreshing is not allowed.

   Thanks

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Old July 21st, 2006, 12:38 PM
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There's two levels of caching that you could be talking about: browser caching and HTTP server caching. Browser caching happens on the client side. HTTP server caching caches responses loaded from disk or from an application server so they can be served again directly from memory for performance. I assume you mean browser caching.

Browser caching is controlled by the HTTP Expires and Cache-Control response headers. You can specify these directly in your application's responses, or alternatively you can use the Apache mod_expires plugin to handle them automatically based on file type. Here's the documentation for mod_expires:

http://httpd.apache.org/docs/2.0/mod/mod_expires.html

Here's a great article on the background behind browser caching and how to configure mod_expires:

http://www.metaskills.net/blog/heuri...che-2#goodpart

Good luck!

Jon Emerson
http://blogs.adobe.com/jon.emerson/
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Old July 22nd, 2006, 06:44 AM
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Hi,

   Thanks for the information. I will go through the links that u provided and get back to u if I have extra question.

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Old July 22nd, 2006, 06:59 AM
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Hi,

   I have gone through the links, can u provide me information on how to configure Tomcat 5.5.17 to stop browser caching? Thanks

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