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EL not recognized!

 
pallavi utukuri
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posted 16 years ago
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created form.html in
D:\Tomcat4.1\webapps\attrib
<html>
<body>
<form action ="result.jsp">
Name: <input type="text" name="name">
<input type="submit">
</form>

result.jsp in
D:\Tomcat4.1\webapps\attrib
<html>
<body>
<p>
${param.name}
</body>
</html>

http://localhost:8080/attrib/form.html
prints
${param.name}


whats wrong here

Thanks,<br />Pallavi

 
Philippe Maquet
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posted 16 years ago
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Hi Pallavi,

EL belongs to the JSP 2.0 specs, which requires Tomcat 5 (J2EE 1.4), not Tomcat 4 (J2EE 1.3).

Regards,

Phil.
 
pallavi utukuri
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posted 16 years ago
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will installing Tomcat5 alone work for EL and JSTL or do i need to install something else

Thanks,<br />Pallavi

 
Philippe Maquet
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posted 16 years ago
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Hi Pallavi,

Nothing else. You simply work with Tomcat 5 instead of Tomcat 4. If my memory doesn't betray me, you still need to install JSTL separately though, but not to get EL to work (it's built in JSP 2.0), just JSTL.

Someone else will clarify this here soon, hopefully...

Regards,

Phil.
 
pallavi utukuri
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posted 16 years ago
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EL is working that gives a lot of relief cause my brother is an atrist ......trying JSTL now....

Thanks,<br />Pallavi

 
alzamabar
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posted 16 years ago
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Sorry guys, I deployed my application on Tomcat5, but still EL is not recognized:


My Servlet (only the doGet method):




My JSP page:



The output:



The person's dog name is: ${person.dog.dogName}



My web.xml:



Is there any particular setup to enable EL?

Marco Tedone<br />SCJP1.4,SCJP5,SCBCD,SCWCD

 
alzamabar
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posted 16 years ago
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Problem solved. Actually, because I'm using web.xml with Servlet 2.3 ('cause of XDoclet' :roll: ) the default is that EL for JSP pages is NOT evaluated by default. For web.xml for Servlet 2.4 the default is that it IS evaluated by default.

From JSP Specs 3.3.2:


The default mode for JSP pages in a Web Application delivered using a
web.xml using the Servlet 2.3 or earlier format is to ignore EL expressions; this
provides for backward compatibility.
The default mode for JSP pages in a Web Application delivered using a
web.xml using the Servlet 2.4 format is to evaluate EL expressions; this
automatically provides the default that most applications want.



I added the page directive with isELIgnored="false" in the JSP page and it worked fine.

Marco Tedone<br />SCJP1.4,SCJP5,SCBCD,SCWCD

 
Roger Yates
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posted 16 years ago
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If you have more than one .jsp page with v2.3 specified, you could add this to your DD:

[ October 24, 2004: Message edited by: Roger Yates ]

Cheers,<br />Roger<br />SCJP 1.2, 1.4, SCBCD 1.3, SCWCD 1.4

 
alzamabar
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I'm building with XDoclet, which hasn't got yet support for Servlet 2.4 and JSP 2.0, therefore I couldn't include the jsp-config element in the DD

Marco Tedone<br />SCJP1.4,SCJP5,SCBCD,SCWCD

 
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