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.
I use the new 2.4 Servlet format.
Okay.
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).
Please note that in the example I provided, in the part <div class="${1+2}">${1+2}</div> the first EL expression (the attribute value) is treated as text, whereas the second (the body of the element), is treated correctly like an EL expression. I haven't tried it with the standard jsp syntax, since I exclusively use Jsp Document syntax.
Sorry, I missed that. That's clearly a bug, since from a JSP spec POV, both cases are just "EL expressions in template text".
I'll assume that this is a bug in Tomcat 5 Alpha with JSP Documents and template elements' attributes, until someone proves otherwise. If someone knows who to send a line to at Apache, I'll gladly provide them with some assumed bug info.
You can (should) submit bug reports for things like this at:
<http://jakarta.apache.org/site/bugs.html>
I'm aware that neither JSP 2.0 nor Tomcat is finished yet. Still, I find the new JSP standard togheter with the JSP Document approach too useful not to use it. Actually I feel that I wouldn't know how to manage without the implicit automatic xml validation and all the other advantages that JSP 2.0 + JSP Document syntax + EL + JSTL 1.0 provides. And there's not even a beta that handles it yet! I guess you've sometimes got to be at the edge if you think it's the right approach and you think you know how to use it. :)
I agree it's a powerful combo.
Thanks (again, you've answered at least one other question from me) for the quick response. You seem to be quite involved with JSTL and the new JSP standard.
Well, I have a finger or two in both specs ;-)
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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