Struts 2 in a Google app. problem

Question

I use struts2 in the google engine. I had a bug with my application.

result 'null' not found 

But when I created the OGNL listener, this error does not appear.

http://whyjava.wordpress.com/2009/08/30/creating-struts2-application-on-google-app-engine-gae/

To solve this problem, I created ServletContextListnerone that sets the OGNL Security Manager to null when the context is initialized. when I created this listener, this error is not displayed.

But now I have a blank page without text in my browser. When I call on any page, nothing is displayed. What for? Please help me.

Answer 1

Struts2 . , , , , , :

<interceptor-ref name="validation">
    <param name="excludeMethods">input,back,cancel,browse</param>
</interceptor-ref>

_input (YourAction_input.action) execute .