Redirect to error.jsp

Question

Hi,
I am getting Http 500 Internal server error from tomcat. I have follwing Jsp fragment, that is throwing this error.
<c:if test="${ empty userId}">
     <c:forEach var='thisCookie' items='${cookie}'>
     <c:if test='${thisCookie.key == "NWPUSERNAME"}'>
<c:set target='${SharedCookieBean}' property='val' value='${thisCookie.value.value}' />
          <c:if test='${SharedCookieBean.valid == "true"}'>
     <c:set target='${UserBean}' property='userId' value='${SharedCookieBean.username}' />                
               <c:if test='${SharedCookieBean.fflag == "true"} || ${UserBean.userFlag == "true"}'>
               <c:redirect url="error.jsp?error=2" />               
               </c:if>
     <c:set target='${UpdateUserAuthenticatedBean}' property='userId' value='${SharedCookieBean.username}' />
<c:set target='${SetSessionParamsBasedOnUserIdBean}' property='req' value='${pageContext.request}' />
<c:set target='${SetSessionParamsBasedOnUserIdBean}' property='userId' value='${SharedCookieBean.username}' />
</c:if>
</c:if>
</c:forEach>
</c:if>
This happend when I give a bogus userid say xdf which is NOT present in the database during the authentication. server sends error 500, which i like to suppress and rather redirect to error.jsp(My redirect attempt in above code is NOT working). It does not redirect to error.jsp. It shows errro 500 Internal server error in the browser.
any help in redirecting it correctly to error.jsp??
pp

Answer 1

My guess would be there is an exception happening in the database lookup code. If you set a generic errorPage for your jsp page, you should be able to redirect properly.
Where does this occur - when you set the SharedCookieBean value?
You might also try the <c:catch> tag. Put it around the bit of code creating the error.
eg...
<c:catch var="except">
    // the bit of code that creates the exception
   <c:set target='${SharedCookieBean}' property='val' value='${thisCookie.value.value}' />
</c:catch>
<c:if ${not empty except}">
  An exception occured - <c:out value="${except.message}"/>
</c:if>Cheers,
evnafets