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Struts2 Filter and Includes

 
J J Wright
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Hi,

I need to invoke a Struts2 action using <jsp:include> (I can't use <:s:action> because it doesn't result in a new request, and I need to be able to cache the response from the included action using a Servlet filter.). However, when I set up my Struts filter to handle includes



I get the following exception in Glassfish V2.1. Any suggestions?

SCJP, SCWCD, SCBCD, SCEA 5

 
J J Wright
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This doesn't work in Tomcat 6 either so I guess its a limitation / problem with Struts 2.1.6. I have to day I find it incredible you can't perform a JSP include on a Struts action.

I have a suspicion it will work when I use org.apache.struts2.dispatcher.ng.servlet.StrutsServlet as opposed to org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter. However, the API docs contain the following warning for using StrutsServlet:

This servlet dispatcher is only for those that really know what they are doing as it may not support every feature of Struts, particularly static resource serving.



All in all pretty disappointing - I may end up ditching Struts2 altogether.

SCJP, SCWCD, SCBCD, SCEA 5

 
David Newton
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I have no issues using <jsp:include> to include an action.

Your server wrote:
javax.servlet.ServletException: PWC1232: Exceeded maximum depth for nested request dispatches: 20


That error message leads me to believe it's either a recursive include, or you're doing something else funky, but that's just an off-the-cuff guess.
 
J J Wright
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Thanks for the reply,

How is your Struts filter set up? By default it won't process includes - did you have you add <dispatcher>INCLUDE</dispatcher>?




SCJP, SCWCD, SCBCD, SCEA 5

 
David Newton
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Yep; I used the configuration you showed in the first message.
 
J J Wright
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David,

I've attached the offending code for a very basic test. I'm assuming I must be doing something glaringly obvious wrong, but I can't see it.



Thanks very much for your help.

Jonathan

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David Newton
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What happens if you use "date.action" as the page? (Or "/date.action"?)
 
J J Wright
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I still get the same error.

SCJP, SCWCD, SCBCD, SCEA 5

 
J J Wright
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I'll try it with an earlier release and see what happens

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David Newton
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I'm running 2.1.6.
 
J J Wright
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I just tried the same example with 2.0.14 and everything worked as expected.

SCJP, SCWCD, SCBCD, SCEA 5

 
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