maya wrote:
again, thank you all very much.. as mentioned, I have Tomcat 5.0.27,
which comes with the following (as specified in release-notes.txt that
comes with it):
* commons-collections*.jar (Commons Collections 2.1 or later)
* commons-dbcp.jar (Commons DBCP 1.1 or later)
* commons-el.jar (Commons Expression Language 1.0)
* commons-logging-api.jar (Commons Logging API 1.0.3 or later)
* commons-pool.jar (Commons Pool 1.1 or later)
* jasper-compiler.jar (Jasper 2 Compiler)
* jasper-runtime.jar (Jasper 2 Runtime)
* jsp-api.jar (JSP 2.0 API)
* commons-el.jar (JSP 2.0 Expression Language)
* naming-common.jar (JNDI Context implementation)
* naming-factory.jar (JNDI object factories for J2EE ENC support)
* naming-resources.jar (JNDI DirContext implementations)
* servlet-api.jar (Servlet 2.4 API)
this means my EL expressions should evaluate, right?
Don't worry about that stuff, focus on your app. The first thing to do is
to make sure you're using a Servlet 2.4 web.xml. It should look something
like this:
<?xml version="1.0" encoding="UTF-8"?>
<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">
...
</web-app>
If you're using a Servlet 2.3 web.xml, then EL will be ignored by default.
thank you again..
Andrés Florit wrote:
With JSP 2.0 you can use EL in all the page because it is part of the
specification. Whit JSP 1.2 you can only use it with JSTL tags and
customs
tags (this last one I'm not very sure). EL is evaluated before the JSP
is converted to a servlet, so I don't think you can use it in a servlet.
Here's a good link about the differences between JSP 1.2 and 2.0.
http://www.onjava.com/pub/a/onjava/2003/11/05/jsp.html
Andrés
On 9/12/06, maya <[EMAIL PROTECTED]> wrote:
thank you all very much for your responses.. will have to check
everything you guys say tonight at home (off the top of my head, I know
I have Tomcat 5.0.27 and, as far as I know, JSP 2.0; Servlet 2.4 specif
(this I know for sure, I looked it up when downloaded JSTL..)
one of the respondents seemed to be implying you can only use EL with
JSTL, I don't suppose I understood right, since I assume it can also be
used with custom tags and beans..
again, thank you very much..
-m
Rashmi Rubdi wrote:
> Behind the scenes JSPs are Servlets .
>
> I had the same problem as maya is facing and after following the
instructions here:
http://wiki.apache.org/jakarta-taglibs/FrequentlyAskedQuestions , and
making sure that there was no version mismatch between the .tld files
and
the URIs and getting the correct versions of the JAR files solved the
problem.
>
> -Rashmi
>
> Andrés Florit <[EMAIL PROTECTED]> wrote:
> Expression Language (EL) is part of the JSP 2.0 specification. If
I'm
not
> wrong it has anything to do with servlets. If you use JSP 1.2 you have
to
> import the JSTL libraries. I think that Tomcat 5 implemnts JSP 2.0.
> Sorry my english.
>
> Andrés
>
>
> On 9/12/06, Rahul Akolkar wrote:
>> On 9/11/06, maya wrote:
>>> I can't get my EL expressions to evaluate to what they're supposed
to...
>>> they print verbatim, in both IE and FF, like for example:
>>>
>>> Server Name: ${pageContext.request.serverName}
>>> Server Port: ${pageContext.request.serverPort}
>>> Remote Address: ${pageContext.request.remoteAddr}
>>> Remote Host: ${pageContext.request.remoteHost}
>>>
>>> or this in a bean:
>>>
>>> Name retrieved from JavaBean has the value of: ${param.name}.
>>>
>>> anything else I've tried to do w/EL it always prints like this in
>>> browser.. why is this.. (running on Tomcat 5, everything pretty
>>> standard..) thank you..
>>>
>>
>> http://wiki.apache.org/jakarta-taglibs/FrequentlyAskedQuestions
>>
>> -Rahul
--
Kris Schneider <mailto:[EMAIL PROTECTED]>
D.O.Tech <http://www.dotech.com/>
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