Why cant I do the following...

Question

I'm trying to set a variable with the value of the error message from the session object.
<c:set var="reason" value="<%= ((AuthenticationException) session.getAttribute(AbstractProcessingFilter.ACEGI_SECURITY_LAST_EXCEPTION_KEY)).getMessage() %>"></c:set>
          <c:choose>
                <c:when test="${reason=='User is disabled'}">
                     Dont be Daft!!! Use YOUR username and password
                </c:when>
              <c:otherwise>
                   <%= ((AuthenticationException) session.getAttribute(AbstractProcessingFilter.ACEGI_SECURITY_LAST_EXCEPTION_KEY)).getMessage() %>
                </c:otherwise>
         </c:choose>     However whenever I deploy I get the following error;
org.apache.jasper.JasperException: /acegilogin.jsp(29,8) According to TLD or attribute directive in tag file, attribute value does not accept any expressionsokay, fair enough. But then how do I set a variable to the value of this error message and then hence how do i run a check on it?
Message was edited by:
DontKnowJack

Answer 1

Have you tried this:
<c:set var="reason">
    <%= ((AuthenticationException) session.getAttribute(AbstractProcessingFilter.ACEGI_SECURITY_LAST_EXCEPTION_KEY)).getMessage() %>
</c:set>
<c:choose>
    <c:when test="${reason=='User is disabled'}">
        Dont be Daft!!! Use YOUR username and password
    </c:when>
    <c:otherwise>
        <c:out value="${reason}"/>
    </c:otherwise>
</c:choose>If that doesn't work, it may be that you don't have EL activated (Expression Language). What server do you have? What version of JSTL?
Message was edited by:
stevejluke