Hi,
I assume that when you say "capture" you mean "handle" ?  Or maybe wrap?

To only handle outgoing (response) data in a filter, do something like this:

public void doFilter(ServletRequest request, ServletResponse response, 
FilterChain chain) throws Blah {
  chain.doFilter(request, response);

  // Now do whatever you want with the response
  // Remember though that the response is likely committed by now
}


To only wrap a response is even simpler:

public void doFilter(ServletRequest request, ServletResponse response, 
FilterChain chain) throws Blah {
  // Do whatever

  chain.doFilter(request, new MyResponseWrapper(response));

  // Do whatever
}

Yoav Shapira http://www.yoavshapira.com



>-----Original Message-----
>From: Pablo Carretero [mailto:[EMAIL PROTECTED]
>Sent: Tuesday, November 09, 2004 3:06 AM
>To: [EMAIL PROTECTED]
>Subject: Filter tricks in tomcat
>
>Hi,
>
>
>
>I'm working with Tomcat 5 from 3 months ago. I understand the filter
>architecture, but I cannot capture the response filter for my JSP and
>servelt. Tomcat 5 is Servlet 2.4, so I thing it can filter either request
>or
>response.
>
>
>
>What I can do, is capture the entire request and its response, to have a
>good mechanism of statistics in my web application.
>
>
>
>So, can you help in order to know how can I catch the response in a
>filter??
>
>
>Thanks in advanced,
>
>
>
>
>
>And best regards.
>
>
>
>
>
>.pcs
>
>
>
>______________________________________
>Pablo Carretero Sánchez
>Cygnux
>
>Arquitecto de Software
>Pintor Velázquez nº 3 Esc Izq 7º B
>28932 - Móstoles (Madrid)
>Movil: +34 699929150
>[EMAIL PROTECTED]
><http://www.cygnux.com/egroupware/email/compose.php?folder=INBOX&sessionid=
>1
>2a0f5acc6fd5805a190a5b55a147155&kp3=7c4ad1ea016bfe58bf86addf2e6064d3&domain
>=
>cygnux.com&[EMAIL PROTECTED]>
>
>




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