Filter mapping based on query string

[siva kumar]

Hi Friends,

Can you please clarify on the below

1.) can I do a filter mapping based on query string something like

<Filter-mapping>/servletname?s=1</Filter-mapping>

2.) In the response header can I get the servlet name which has generated this response.

Thanks
Kumar

[Jeanne Boyarsky]

Kumar,
I don't think you can match on parameters in the filter mapping. It seems simple enough to try though. What happens when you try it?

[Christophe Verré]

1. No, it won't work. I don't know how the container will react, but it's not a valid url pattern. By the way, you don't put url patterns directly in the filter-mapping tag, but in the url-pattern tag of the filter-mapping tag. What you could try is :

<filter-mapping>
<filter-name>MyFilter</filter-name>
<url-pattern>/ServletUrl</url-pattern>
</filter-mapping>
or
<filter-mapping>
<filter-name>MyFilter</filter-name>
<servlet-name>servletname</servlet-name>
</filter-mapping>

and check if s=1 in the filter.

[siva kumar]

Hi,

Sorry I typed the tags wrongly, Yes you are right I couldnt do it in tomcat

I think it is not possible.

Thanks for your response anyway

[Ben Souther]

You can't map it according to querystring variables but you can read the variables from within your filter and branch accordingly.

[siva kumar]

Thanks Ben,

I am done with my filter development.