File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Problem with cache and session

 
Davide Alagna
Greenhorn
Posts: 5
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi all,
I have a big problem when caching with Internet Explorer 6.0. In order to prevent caching to all my Struts Actions, I have created a class called BaseAction that implements cache control:

response.setHeader("Cache-Control","no-cache");
response.setHeader("Cache-Control","no-store");
response.setDateHeader("Expires", 0);
response.setHeader("Pragma", "no-cache");

All my Struts Actions extend my BaseAction class. The problem is that, when I click the back button, IE shows the error page "The page cannot be displayed".

The problem does not occur if I disable the first two headers:

//response.setHeader("Cache-Control","no-cache");
//response.setHeader("Cache-Control","no-store");

In order to see what IE does when I click the back button, I have made a snoop of tcp/http traffic. IE does not send anything (neither a bite!) to the server when I click the back button.
Furthermore, the problem does not occur when using Firefox 1.0.3 (it shows the message "the page contains POST data - do you want to resend data?").

Can anybody help me please? Thanks in advance.
David
 
Marc Peabody
pie sneak
Sheriff
Posts: 4727
Mac Ruby VI Editor
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
It's working properly, it's just not what you expected.

I believe what you are looking for is the functionality of the PRG Pattern.
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic