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From "Jan Behrens" <jan.behr...@daxcolog.de>
Subject RE: NEWBIE: Wierd problem - Action sometimes produces Status 500 - No Context configured to process this request
Date Wed, 30 Jun 2004 10:48:46 GMT
Hi Adam,

I thought that it might be that - as you are not in any "action" before you
actually login - you need to define a global forward for Struts to associate
an action (e.g. a forward) with it. After you have logged in, you are sort
of within the controll-flow and therefore your defined action will be found
but before that, you need a global action to enter the controll-flow...

Just out of curiosity, have you tried it?

Jan

-----Original Message-----
From: Adam Lipscombe [mailto:adam.lipscombe@expensys.com] 
Sent: Wednesday, June 30, 2004 12:31 PM
To: 'Struts Users Mailing List'
Subject: RE: NEWBIE: Wierd problem - Action sometimes produces Status 500 -
No Context configured to process this request


Thanks Jan,


You may be right but I am not sure how this would help....

The "login" global forward redirects the user to a Login.jsp page. From
Login.jsp 2 actions can be called: "login.do" and "help.do". login.do
validates the user and logs them in. help.do displays help.

The weirdness is that login.do always works. help.do does not *until* the
user has logged in once. 

I would have thought that if Tomcat was setup wrong then neither action
would work, but I am grasping at straws :-)


Adam




-----Original Message-----
From: Jan Behrens [mailto:jan.behrens@daxcolog.de] 
Sent: 30 June 2004 10:11
To: 'Struts Users Mailing List'
Subject: RE: NEWBIE: Wierd problem - Action sometimes produces Status 500 -
No Context configured to process this request


Hi Adam,

I am new to Struts so this is more of a shot in the dark but anyway... Could
it be that the problem is that you only have one global forward pointing to
your login? So from a controll flow point of view wouldn't that mean that
you can only access login.do as an entry to your system? Have you tried
adding a global forward for your help.do as well?

Cheers, Jan

-----Original Message-----
From: Adam Lipscombe [mailto:adam.lipscombe@expensys.com] 
Sent: Tuesday, June 29, 2004 7:31 PM
To: 'Struts Users Mailing List'
Subject: NEWBIE: Wierd problem - Action sometimes produces Status 500 - No
Context configured to process this request


Folks,


I have a strange problem that is confusing me:

I have a simple login page with a Help button defined like this:

<html:link href="javascript:displayHelp('loginPage')"%>"<img border="0"
height="28" name="Image10" src="images/b_help_1.gif" width="32"></html:link>


When pressed, the JavaScript displayHelp() method below is called:

function displayHelp(context)
{
 [snip]

  var url = "<html:rewrite page='/help.do' />"  
  url += "?context=" + context;

 [snip]

  window.open(url, "HelpWindow", windowOptions);
}



This page is the first page that the user sees, having been redirected from
index.jsp like this:

<logic:redirect forward="login"/>




The problem is that before a user logs in, pressing the "Help" button
results in the error "HTTP Status 500 - No Context configured to process
this request" being displayed. 

However after a user logs in (and presses the browser back button to return
to the login page) the link works fine and the help is displayed OK.


Its as if the act of logging in sets up a context within which the actions
work....



The relevant bits of my struts-config looks like this:

<global-forwards>
    <forward name="login" path="/pages/Login.jsp" /> </global-forwards>

<action-mappings>
 <action input="/pages/Login.jsp" name="loginActionForm" path="/login"
scope="request" type="com.expensys.expensyswt.struts.action.Login"
validate="true">
   <forward name="home" path="/pages/Home.jsp" />
 </action>

 <action path="/help" scope="request"
type="com.expensys.expensyswt.struts.action.DisplayHelp" validate="false" >
  <forward name="loginHelp" path="/pages/help/LoginHelp.jsp" />
  <forward name="displayHelpTopics" path="/pages/help/HelpTopics.jsp" />
</action> </action-mappings>



Does anyone know what is going on here?
Why does the "/help.do" action URL work after the user has logged in but not
before? 
Is it to do with the fact that no action has been called before the log in
takes place?



TIA - Adam



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