logic:forward and errorPage not working

[Jo...@perficient.com]

I can't seem to get two "forwarding"-related technologies working in my
Struts Bridge app: the Struts logic:forward tag and the @ page errorPage
directive.

Example of the first:

*******

<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<logic:forward name="dest-logic"/>

*******

Example of the second:

*******

<%@ page contentType="text/html;charset=UTF-8" language="java"
    errorPage="/jsp/dest-errorpage.jsp" %>
<% int foo = 1 / 0; // to throw an exception %>

*******

I've actually set up a sample portlet that tests these as well as a number
of other forwarding-related mechanisms (configured for Vignette Portal
right now):

http://joshjustice.com/struts-bridge-forwarding.war

Are there good alternatives for these to do forwarding from within a JSP?
Is it a matter of having someone write a Bridge version of the logic
taglib? Is this actually more of a JSR-168 issue than a Struts Bridge
issue?

I'm thinking of doing this primarily for error-handling and
security-checking purposes. Right now the best I can think of is a
TryCatchFinally tag that prints out a JavaScript redirect, but that hardly
seems ideal. Thanks for your help!

--
Josh Justice
josh.justice@perficient.com
678-438-0772


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Re: logic:forward and errorPage not working

[David Sean Taylor <da...@bluesunrise.com>]

Josh.Justice@perficient.com wrote:
> 
> I can't seem to get two "forwarding"-related technologies working in my
> Struts Bridge app: the Struts logic:forward tag and the @ page errorPage
> directive.
> 
Forwardin are not recommended from servlets or JSPs included by 
portlets. From the Portlet 1.0 spec, section PLT 16.3:

"Servlets and JSPs included from portlets should not use the servlet 
RequestDispatcher *forward* method as its behavior may be 
non-deterministic."


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