Filters and Forwarding

["Chisholm, Paul" <Pa...@AirservicesAustralia.com>]

Hi,

I have a servlet X that forwards to a servlet Y. When Y is requested
directly there is a filter specified in web.xml that does some
preprocessing of the request. When X forwards to Y I want the request to
pass through the filter, but it seems to go straight to Y. Associating
the filter with X wont work because the filter would then process the
request before X, instead of between X and Y. I can incorporate the
functionality of the filter in Y but that defeats the whole purpose of
using filters (there are situations where I want to use Y without the
filter). Is there is way to do what I want?

Thanks,
Paul

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Re: Filters and Forwarding

[Tim Funk <fu...@joedog.org>]

Filters apply only to the incoming request. Filters are not invoked on 
subsequent forward() or include().

But the 2.4 spec will allow filters to be run on forward() (and I think 
include, read the spec to verify)

-Tim

Chisholm, Paul wrote:
> Hi,
> 
> I have a servlet X that forwards to a servlet Y. When Y is requested
> directly there is a filter specified in web.xml that does some
> preprocessing of the request. When X forwards to Y I want the request to
> pass through the filter, but it seems to go straight to Y. Associating
> the filter with X wont work because the filter would then process the
> request before X, instead of between X and Y. I can incorporate the
> functionality of the filter in Y but that defeats the whole purpose of
> using filters (there are situations where I want to use Y without the
> filter). Is there is way to do what I want?
> 
> Thanks,
> Paul
> 


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Re: Filters and Forwarding

[Antonio Fiol Bonnín <fi...@terra.es>]

If you are allowing incoming requests to Y, you can make X to 
sendRedirect() to Y.

A bit slower, as it needs the client to access Y himself, but depending 
on your needs, it may work.

Antonio Fiol

Chisholm, Paul wrote:

>Hi,
>
>I have a servlet X that forwards to a servlet Y. When Y is requested
>directly there is a filter specified in web.xml that does some
>preprocessing of the request. When X forwards to Y I want the request to
>pass through the filter, but it seems to go straight to Y. Associating
>the filter with X wont work because the filter would then process the
>request before X, instead of between X and Y. I can incorporate the
>functionality of the filter in Y but that defeats the whole purpose of
>using filters (there are situations where I want to use Y without the
>filter). Is there is way to do what I want?
>
>Thanks,
>Paul
>
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>To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
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>
>
>  
>