How to run EL code using Tomcat

[Madhu Kumar Vatts]

I am facing problems running anything related EL. It just prints the ${} when I ask it to print any JSP. Do I need to keep any jar in the lib of my application. Forgot to mention I am using TOMCAT.

Appreciate your reply

Madhu

[Sami Sayeed]

Hi,

make sure it is tomcat version 5,
you dont have to anything specific to make the el work, by default it should work,

only for the jstl you need to copy the jstl.jar and the standard.jar files in the WEB-iNF/lib directory of the webapp

Sami

[Giju George]

don't know whether you need to specify the web-app tag like this to get it working :-

<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 web-app_2_4.xsd" version="2.4">

[Sudhakar Guntaka]

Hi madhu,
There is no need to keep any jar files. Ensure that you are using JSP 2.0 and Tomcat 5 or above.
I too faced the same problem. So I used <%@ page isELIgnored="false"%> explicitly in my JSP page, then it worked.
Just try using like this.. u will get it..

cheers,

Sudhakar.

[Debashish Chakrabarty]

This may sound funny but it's true that for Tomcat 5 to make the EL work you need not change web.xml as said above but rather use the isELIgnored="false" page attribute as mentioned by Sudhakar above. Funny because, by default the isELIgnored attribute is supposed to be "false", yet you need to specify it explicitly.

[Christophe Verré]

Forget about isELignored and do as Giju George told you.
You have to use version 2.4, because EL is ignored by default in 2.3

[Debashish Chakrabarty]

  
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
    ...
</web-app>

However, I agree that it also works with the modified web.xml, as mentioned above and "without" using isELIgnored page attribute.
[ December 14, 2005: Message edited by: Debashish Chakrabarty ]

[Christophe Verré]

You are using 2.3, so EL is disabled by default. As you said, you have to set isELIgnored to false to make it work.

If you'd be using 2.4, EL would be enabled by default.

"Madhu Kumar Vatts" is probably studying for the latest version of SCWCD,
so it is probably a better idea to use 2.4, and modify web.xml.