Hans Javaserver 3 book example not working

Question

Hello,
This is from Hans Javaserver Pages Third edition
<%-- Verify that the user is logged in --%>
<c:if test="${validUser == null}">
<jsp:forward page="login.jsp">
<jsp:param name="origURL" value="${pageContext.request.requestURL}" />
<jsp:param name="errorMsg" value="log in first." />
</jsp:forward>
</c:if>
The above example does not seem to work.
The code below seems to work
<%-- Verify that the user is logged in --%>
<c:if test="${validUser.name == null}">
<jsp:forward page="login.jsp">
<jsp:param name="origURL" value="${pageContext.request.requestURL}" />
<jsp:param name="errorMsg" value="log in first." />
</jsp:forward>
</c:if>
Any ideas why his example is not working on Tomcat 5.0?
Thanks
Frank

Answer 1

Hi I was trying the same thing and was wondering why it doesn't accept the origURL, well it never takes the value of it at all and just skips the page that was requested and goes to mail.jsp no matter what.
<c:choose>
<c:when test="${! empty param.origURL}" >
<c:redirect url="${param.origURL}" />
</c:when>
<c:otherwise>
<c:redirect url="main.jsp" />
</c:otherwise>
</c:choose>
The value of origURL is never passed to this authentication page! I would also like to know the reason why?
Also I have a question to your last piece of code that works: where is the name parameter taken from? Is it the same as userName that is passed as a parameter from the login page? or is it something else? I'd really appreciate your help...
<c:if test="${validUser.name == null}">