RE: el in JSTL / JSP 2.0

2004-07-29 Thread JD Salzman 

I had the same prob. And 2 things I did that worked:

1. try using the 2.4 schema definition in web.xml
2. if the PermittedTablibs.tld is involved make sure your taglib-uri is
http://java.sun.com/jsp/jstl/core

Good luck
 

-Original Message-
From: Paul Wallace [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, July 28, 2004 11:17 PM
To: [EMAIL PROTECTED]
Subject: el in JSTL / JSP 2.0

Hi,
I am trying to introduce JSP 2 with Tomcat 5 (full source
below), and thus experimenting with the JSTL expression language in JSP
tag files (.tag). I am bemused as to why I cannot embed the expression
language within a JSTL tag thus: 
 
c:forEach begin=${a} end=${b} varStatus=status
 
${status.count} br/
 
/c:forEach
 
Tomcat is really unhappy with this:
 
org.apache.jasper.JasperException: /WEB-INF/tags/wrapper.tag(13,4)
According to TLD or attribute directive in tag file, attribute begin
does not accept any expressions
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHand
ler.java:39)

 
the same code with c:forEach begin=1 end=5 varStatus=status
iterates 5 times with no trouble. I have the latest tld's from Jakarta,
status.count is displaying correctly. 
 
Any thoughts please?
 
Thanks
 
Paul.
 
jsp:
 
%@ taglib prefix=tags tagdir=/WEB-INF/tags %
%@ taglib uri=http://java.sun.com/jstl/core; prefix=c %

tags:wrapper a=1 b=10
p Wrapped Content /p
/tags:wrapper
 
.tag:
 
%@ taglib uri=http://java.sun.com/jstl/core; prefix=c %
%@ tag body-content=scriptless %
%@ attribute name=a required=true %
%@ attribute name=b required=true %

p Attributes - ${a}, ${b} /p
 
c:forEach begin=${a} end=${b} varStatus=status
 
${status.count} br/
 
/c:forEach

RE: el in JSTL / JSP 2.0

2004-07-29 Thread Paul Wallace 
 
Hi,
Tbanks for that. I was using the 2.4 schema:

web-app xmlns=http://java.sun.com/xml/ns/j2ee;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
version=2.4

And tried (although PermittedTablibs.tld is not in the picture):

taglib
taglib-urihttp://java.sun.com/jsp/jstl/core/taglib-uri
taglib-location/WEB-INF/tld/c.tld/taglib-location
/taglib

Using this gave me a 500 error (can't find said file). Before edition it
looked something like: 

taglib
taglib-urihttp://java.sun.com/jstl/core/taglib-uri
taglib-location/WEB-INF/tld/c.tld/taglib-location
/taglib

The code hasn't changed (below). Are you suggesting I use that URL in
the JSP / .tag? If so, my IDE cannot resolve the library (IDEA). 

Thanks for your thoughts.

Paul. 




I had the same prob. And 2 things I did that worked:

1. try using the 2.4 schema definition in web.xml
2. if the PermittedTablibs.tld is involved make sure your taglib-uri
is
http://java.sun.com/jsp/jstl/core

Hi,
I am trying to introduce JSP 2 with Tomcat 5 (full source
below), and thus experimenting with the JSTL expression language in JSP
tag files (.tag). I am bemused as to why I cannot embed the expression
language within a JSTL tag thus: 
 
c:forEach begin=${a} end=${b} varStatus=status
 
${status.count} br/
 
/c:forEach
 
Tomcat is really unhappy with this:
 
org.apache.jasper.JasperException: /WEB-INF/tags/wrapper.tag(13,4)
According to TLD or attribute directive in tag file, attribute begin
does not accept any expressions
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHand
ler.java:39)

 
the same code with c:forEach begin=1 end=5 varStatus=status
iterates 5 times with no trouble. I have the latest tld's from Jakarta,
status.count is displaying correctly. 
 
Any thoughts please?
 
Thanks
 
Paul.
 
jsp:
 
%@ taglib prefix=tags tagdir=/WEB-INF/tags %
%@ taglib uri=http://java.sun.com/jstl/core; prefix=c %

tags:wrapper a=1 b=10
p Wrapped Content /p
/tags:wrapper
 
.tag:
 
%@ taglib uri=http://java.sun.com/jstl/core; prefix=c %
%@ tag body-content=scriptless %
%@ attribute name=a required=true %
%@ attribute name=b required=true %

p Attributes - ${a}, ${b} /p
 
c:forEach begin=${a} end=${b} varStatus=status
 
${status.count} br/
 
/c:forEach






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RE: el in JSTL / JSP 2.0

2004-07-29 Thread Paul Wallace 

Hi, 

It took me a while to get IJ/Jboss3.2.5(tomcat5)/JDK1.5 working but the
above finally rendered jstl 1.1 ${2+2} without using c:out
value=${2+2}/ 

That is what I am trying to do, embed some el in my JSTL (two
int attributes passed into my tag, and the tag then iterates for the
defined number). It works with static nos, but does not accept the el
(${status.count} is fine):

c:forEach begin=${a} end=${b} varStatus=status
${status.count} br/
/c:forEach 

Where static values are fine: c:forEach begin=1 end=5
varStatus=status 

I made mods as per your email (source included at the foot). Idea 4.5
now is happy with %@ taglib uri=http://java.sun.com/jsp/jstl/core;
prefix=c % in my JSPs (mysterious), but I am still getting the same
message. Here's the 3 source files again.

Thanks again for your help

Paul.

web.xml:

web-app xmlns=http://java.sun.com/xml/ns/j2ee;
xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
version=2.4

jsp-config
taglib
taglib-urihttp://java.sun.com/jsp/jstl/core/taglib-uri
taglib-location/WEB-INF/tld/c.tld/taglib-location
/taglib
/jsp-config
.

JSP: 

%@ taglib prefix=tags tagdir=/WEB-INF/tags %
%@ taglib uri=http://java.sun.com/jsp/jstl/core; prefix=c %

tags:wrapper a=1 b=10
p Wrapped Content /p
/tags:wrapper

wrapper.tag:

%@ taglib uri=http://java.sun.com/jsp/jstl/core; prefix=c %
%@ tag body-content=scriptless %
%@ attribute name=a required=true %
%@ attribute name=b required=true %

c:forEach begin=${a} end=${b} varStatus=status
${status.count} br/
/c:forEach

Message (same):

org.apache.jasper.JasperException: /WEB-INF/tags/wrapper.tag(15,4)
According to TLD or attribute directive in tag file, attribute begin
does not accept any expressions

org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHand
ler.java:39) 




IDEA 4.5 will not complain about the 2.4 schema spec of web.xml however
note
jars in web-inf/lib will be default added to library. 

Try web.xml:

?xml version=1.0 encoding=ISO-8859-1?

web-app xmlns=http://java.sun.com/xml/ns/j2ee;
  xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance;
  xsi:schemaLocation=http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd;
  version=2.4 (as you have)

  jsp-config  (new 2.4 xml tag) 

taglib
taglib-urihttp://java.sun.com/jsp/jstl/core/taglib-uri
taglib-location/WEB-INF/tld/c.tld/taglib-location (make sure
this path is correct)
/taglib

  /jsp-config

/web-app

Then in jsp:
%@ taglib uri=http://java.sun.com/jstl/core; prefix=c % (must be
same
as in web.xml, technically can be anything unless permittedTags
involved)

Start simple w/ EL: ${2+2}


With IDEA 4.5 you should get green bars for both the web.xml and the jsp
file (the c.tld is all red, but no matter as tomcat 5 will still work)
when
the taglib-uri paths match.

As part of the jsp 2.0 spec, taglib is optional in jsp's as the
container
knows of them by default. 

It took me a while to get IJ/Jboss3.2.5(tomcat5)/JDK1.5 working but the
above finally rendered jstl 1.1 ${2+2} without using c:out
value=${2+2}/

Sound like you are almost there...


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