When i use the xml syntax for a jsp page with Tomcat 5.0 Alpha and try to reference a EL parameter in a template data attribute, the EL expression gets output as plain text, i.e. it is treated as quoted plaintext within the attribute. Is this the correct behaviour, or is it a bug in Tomcat? The behavior seems a bit strange to me, I'd expect it to output the parameter. I've been trying to find a clarification in the JSP 2.0, and JSTL 1.0 specification but unfonrtunately no luck so far. I'm also aware that I could use JSP 2.0 tag <jsp:element> and <jsp:attribute> to work around the problem, but if it can be avoided I'd rather do it the other way, since I find the other way to do it cleaner.
Example: <?xml version="1.0" encoding="ISO-8859-1"?> <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"; xmlns:c="http://java.sun.com/jstl/core"; version="2.0">
<jsp:directive.page contentType="text/html" pageEncoding="ISO-8859-1"/>
<html> <body> <div class="${1+2}">${1+2}</div> </body> </html> </jsp:root>
Does the web application this page belong to use a Servlet 2.3 Deployment Descriptor (web.xml file)? If so, EL processing is turned off by default (for backwards compatibility). If this is the case, you have two options: 1) Change the web.xml file to the new Servlet 2.4 format, 2) Add a page directive in the file with the isELIgnored attribute set to false.
Also note that neither the JSP 2.0 spec nor Tomcat 5 is fully cooked yet, so be prepared for things not being 100% in sync. I've tested approach 1) with regular JSP files (not JSP Documents, i.e. JSP in XML format) and it worked fine with a TC 5 version from a few weeks ago, but I believe I had problems with approach 2).
Hans -- Hans Bergsten <[EMAIL PROTECTED]> Gefion Software <http://www.gefionsoftware.com/> Author of O'Reilly's "JavaServer Pages", covering JSP 1.2 and JSTL 1.0 Details at <http://TheJSPBook.com/>
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