I haven't been following this thread so if my answer doesn't help... sorry.
I have configured a default Action setup to catch all unknown actions.
The default-action-ref tag [1] sets the action to use when the requested
action isn't found.
<default-action-ref name="Unknown" />
<action name="Unknown"
class="com.nexmobile.server.struts.UnknownAction">
<interceptor-ref name="unknownActionStack" />
<result type="redirectAction">Login</result>
</action>
I use a restricted interceptor stack since all I'm going to do is log it and
redirect to the login action.
<interceptor-stack name="unknownActionStack">
<interceptor-ref name="log" />
<interceptor-ref name="servletConfig" />
</interceptor-stack>
Your other option would be to configure a wildcard default [2]
<action name="*">
<result>/Unknown.jsp</result>
</action>
[1]
http://struts.apache.org/2.x/docs/action-configuration.html#ActionConfiguration-ActionDefault
[2]
http://struts.apache.org/2.x/docs/action-configuration.html#ActionConfiguration-WildcardDefault
On Fri, Nov 13, 2009 at 5:51 AM, RogerV <roger.var...@googlemail.com> wrote:
>
>
>
> Brian Thompson-5 wrote:
> >
> > I can only speculate, but it seems logical that the
> ClassNotFoundException
> > is being thrown from outside the purview of Struts, in Tomcat's
> > ClassLoaders
> > - thus the Struts exception mapping never enters into it.
> >
>
> Theres definitely something odd going on. With global mappings disabled and
> devmode set to true, entering an invalid action into the browser gives the
> Struts formatted "No Action Mapped" exception (it's not
> ClassNotFoundException"). With global mappings and devmode set to false,
> entering an invalid action give the Tomcat 404 page with the no Action
> Mapped message. With global mappings set to catch java.lang.exception and
> devmode set to false, Struts seems to catch every exception thrown except
> when an invalid action is keyed into the browser.
>
> The fact that both the error message texts talk about "No Action Mapped"
> must surely mean that the error is being caught by Struts as Action Mapping
> is a Struts concept, not a Tomcat concept. I would have thought that
> catching in Invalid Action was one of the messages you would most want to
> catch to stop unfriendly users "experimenting" with your application!
>
> Regards
>
> --
> View this message in context:
> http://old.nabble.com/Re%3A-Catching%3A-Unable-to-instantiate-Action-tp26303352p26334735.html
> Sent from the Struts - User mailing list archive at Nabble.com.
>
>
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