Are you sure you need to do it like this? You can use OGNL expressions in
your S2 configuration file to do things like set a URL to redirect to etc.
Dave
--- Filipe David Manana <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am trying to use an action that returns directly instances of the
> Result class, due to the nature of my application where the result is
> dynamically decided by some logic.
>
> My action class method is:
>
> public Result doLogin() throws Exception
> {
> // etc...
> if ( !validUser )
> {
> addActionError("Authentication failed. Invalid
> username/password provided.");
> return new ServletDispatcherResult("/jsp/login.jsp");
> }
>
> // valid user
> session.put("user", userName);
>
> ServletActionRedirectResult result =
> (ServletActionRedirectResult) session.get("_prev_uri_");
>
> if ( result == null )
> {
> result = new ServletActionRedirectResult("/home", "home",
> "execute");
> }
>
> return result;
> }
>
> My struts.xml:
>
> <action name="doLogin" class="actions.LoginAction" method="doLogin">
> </action>
>
> After executing the action's method I always get a
> NullPointerException from ServletActionRedirectResult :S
>
> exception
>
> javax.servlet.ServletException: java.lang.NullPointerException
>
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:515)
>
>
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
>
>
org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
>
> root cause
>
> java.lang.NullPointerException
>
>
org.apache.struts2.dispatcher.ServletActionRedirectResult.execute(ServletActionRedirectResult.java:184)
>
>
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)
>
>
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
>
>
actions.CaptureLastURIRequestedInterceptor.intercept(CaptureLastURIRequestedInterceptor.java:48)
>
>
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)
>
>
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)
>
>
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)
>
>
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)
>
>
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
>
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
>
>
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
>
>
org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
>
> Am I missing something?
>
> cheers
>
> --
> Filipe David Manana,
> [EMAIL PROTECTED]
>
> Obvious facts are like secrets to those not trained to see them.
>
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