Problem with EL in JSP

IronStar · January 31st, 2007, 06:06 PM

Hi,

I created this simple JSP to experiment with EL:

<%@ page language="java" errorPage="/view/error/Error.jsp" %>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<c:set var="testVar" value="9999"/>

<html>
   <head>
      <title>JSP EL Test</title>
   </head>
   <body>
      <c:out value="${testVar}" default="00000"/>
   </body>

</html>

I added this JSP to an existing web application, and added the jstl.jar and standard.jar files to the app's WEB-INF/lib directory. When I ran the JSP the output was:

${testVar}

I moved the JSP to the jsp-examples application that is installed with Tomcat 5.5.20 (in the jsp-examples/jsp2/el directory) and ran it from there and the output was:

9999

Can anyone explain this behavior? It seems that the jsp-examples application has some setting that I'm missing, but I can't find it.

Any help you can offer is greatly appreciated.

Thanks,
Tom

IronStar · January 31st, 2007, 11:54 PM

I found the problem. The following thread is an excellent resource for this issue:

http://forum.java.sun.com/thread.jsp...hreadID=628740

Basically, my applications's web.xml was using a version that ignores EL by default. Check out the link above if you're having the same problem.