Thanks Hans (and Kris)
Actually I already had the JSTL 1.1, JSP 2.0 and
Web.xml (servlet 2.4) installed. I am just a newbie
and was stupidly using the JSTL 1.0 page directives.
I changed the page directives to use the JSTL 1.1 URI
and everything is peaches and cream (again). :-)
--- Hans Bergsten <[EMAIL PROTECTED]> wrote:
> The original problem was most likely that you had a
> web.xml
> file in Servlet 2.4 format in a JSP 2.0 container
> (TC 5), but
> used the JSTL 1.0 EL library URIs for the taglib
> directives.
>
> The main difference between JSP 1.2/JSTL 1.0 and JSP
> 2.0/JSTL 1.1
> is that with JSP 1.2/JSTL 1.0, the tag handlers
> evaluate EL
> expressions, but with JSP 2.0/JSTL 1.1 it's the JSP
> container
> that handles the evaluation.
>
> All attributes for the JSTL 1.0 EL libraries are
> marked as not
> accepting expressions ("rtexprvalue" set to false):
> to a JSP 1.2
> container they are regular strings, only recognized
> as expressions
> by the tag handlers. The JSTL 1.0 RT libraries have
> all attributes
> marked as accepting expressions, but in a JSP 1.2
> container only
> Java expressions are supported and evaluated by the
> JSP container.
>
> The JSTL 1.1 libraries, on the other hand, have all
> attributes
> marked as accepting expressions, and in JSP 2.0 this
> means that
> both Java and EL expressions can be used and that
> the container
> evaulates them and gives the resulting value to the
> tag handler.
>
> In addition, as I've explained before, the JSP
> container's EL
> evaluation is enabled by default if you use a
> Servlet 2.4 web.xml
> file (or have no web.xml file at all), but disabled
> if you use a
> Servlet 2.3 web.xml file.
>
> So in your case, I believe that you:
> * had a Servlet 2.4 web.xml file (or no web.xml)
> file, i.e., the
> container's EL evaluation feature was enabled,
> * used the JSTL 1.0 EL libraries, i.e., the
> libraries that have
> all attributes marked as not accepting
> expressions.
>
> The best solution is to use the JSTL 1.1 libraries
> in a JSP 2.0
> container. As Kris pointed out, you just need to
> change the library
> URIs in the taglib directives. Another solution is
> to use a
> Servlet 2.3 web.xml file (i.e., disable the
> container's EL
> evaluation) and continue to use JSTL 1.0. The latter
> makes sense if
> you have an existing JSTL 1.0 application that you
> want to run in a
> JSP 2.0 container. In either case, you can also
> enable or disable the
> EL on a per-page basis with the "isELIgnored" page
> directive
> attribute, or for a set of pages with the
> <el-ignored> element in
> a Servlet 2.4 web.xml file.
>
> Finally (plug, plug), all of this and more is
> described in my
> JavaServer Pages book (O'Reilly).
>
> Hope this helps,
> Hans
>
> Thomas McDonald wrote:
> > It works now. I changed the page directive to :
> >
> > <%@ taglib prefix="x"
> > uri="http://java.sun.com/jstl/xml_rt"; %>
> >
> > notice the '_rt' at the end
> >
> > I am not sure why it works, i.e., based upon what
> Kris
> > just said I shouldn't be able to run <%= %> and
> ="${
> > }" in the same tag, but I did.
> >
> > Maybe is works because (I think) I am running a
> JSP
> > 2.0 container--I just installed Tomcat 5.0.19 and
> I
> > believe that has a JSP 2.0/Servlet 2.4 container.
> >
> > Anyway, life is good :-)
> >
> > This is a great mailing list. Very responsive.
> > Thanks all.
> >
> > --- Kris Schneider <[EMAIL PROTECTED]> wrote:
> >
> >>Until you get to JSP 2.0, you can't use scriptlet
> >>expressions and EL expressions
> >>as attribute values for the same tag. In other
> >>words, you can't use "${...}"
> >>and "<%=...%>" for attribute values in the same
> tag.
> >>That's why JSTL 1.0 comes
> >>with two flavors of each of its taglibs: EL-based
> >>and RT-based.
> >>
> >>Quoting "MARU, SOHIL (SBCSI)" <[EMAIL PROTECTED]>:
> >>
> >>
> >>>Try changing the name of
> >>
> >>url="/includes/xslt/sortablegrid.xslt" to
> >>
> >>>url="/includes/xslt/sortablegrid.xsl"
> >>>The name of the file should not include .xslt but
> >>
> >>should be .xsl
> >>
> >>>-----Original Message-----
> >>>From: Thomas McDonald
> [mailto:[EMAIL PROTECTED]
> >>
> >>>Sent: Wednesday, March 03, 2004 3:09 PM
> >>>To: [EMAIL PROTECTED]
> >>>Subject: xslt expression
> >>>
> >>>
> >>>I keep getting the error "According to TLD or
> >>>attribute directive in tag file, attribute xslt
> >>
> >>does
> >>
> >>>not accept any expressions"
> >>>
> >>>"doesn't accept expressions??!!" That seems
> >>>absolutely crazy to me. Does it really want me
> to
> >>>type in a whole xsl document? I have to deliver
> >>
> >>the
> >>
> >>>xsl document via an expression. I must be doing
> >>>something wrong. Any ideas?
> >>>
> >>>Here is my code code:
> >>>
> >>><%@ taglib prefix="c"
> >>>uri="http://java.sun.com/jstl/core"; %>
> >>><%@ taglib prefix="x"
> >>>uri="http://java.sun.com/jstl/xml"; %>
> >>><c:import url="/includes/xslt/sortablegrid.xslt"
> >>>var='xslt'/>
> >>><x:transform xslt="${xslt}">
> >>><%=objXML.getXml().toString().trim()%>
> >>></x:transform>
>
>
> --
> Hans Bergsten
> <[EMAIL PROTECTED]>
> Gefion Software
> <http://www.gefionsoftware.com/>
> Author of O'Reilly's "JavaServer Pages", covering
> JSP 2.0 and JSTL 1.1
> Details at
> <http://TheJSPBook.com/>
>
>
>
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