assign expression language value to a string

[tushar panda]

I want to assign the retrieved EL value to a string , but it doesnot worked.

<% String user = ${filegen.name} ; %>

please help me with correct code.

[ujjwal soni]

Hi Tushar,

Can you please try below code.

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
 
<c:set var="names" scope="session" value="${filegen.name}"/>
<c:out value="${names}"/>				<%-- Output: names--%>
 

<%= session.getAttribute("names") %>  	<%-- Output: value of user name--%>
<% String user =  session.getAttribute("names"); %>  
<c:remove var="names" scope="session"/>

[Bear Bibeault]

The EL was meant to replace scriptlets in a JSP, not work in conjunction.

You should choose to either use scriptlets, or to use the EL. Using both is just a mess.

[tushar panda]

Bear Bibeault wrote:You should choose to either use scriptlets, or to use the EL. Using both is just a mess.

Dear sir ,
i know its a mess but i require it for comparision , as newbie to EL , don't know how to compare using EL.

[tushar panda]

@ ujjwal soni

tried your code and got the error below :

org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be 
resolved in either web.xml or the jar files deployed with this application
 

is anything required to be changed in web.xml ??

[Bear Bibeault]

tushar panda wrote:i know its a mess but i require it for comparision

Hogwash. Scriptlets aren't required to do anything with the EL. If are trying to learn the EL, learn it right. That means no scriptlets.

So what are you really trying to do?

[ujjwal soni]

Yea, check your web.xml for below entries ?

If they dont exist or they differ, put those in.

<taglib>
<taglib-uri>http://java.sun.com/jsf/core</taglib-uri>
<taglib-location>/WEB-INF/c.tld</taglib-location>
</taglib>

Also, which tld ru using, is it c.tld or some other one for core libs, of its other then put that name in.

[Bear Bibeault]

ujjwal soni wrote:If they dont exist or they differ, put those in.

NO!
Do not add that to your web.xml. Never take the TLDs out of the jar file. Simply put the jstl jar file (or files) in WEB-INF/lib.

Do not, I repeat do not, extract the tld files, nor put any delcarations like this in your web.xml. It's unnecessary and just leads to other problems.

Also, which tld ru using

ujjwal soni, Please use real words when posting to the forums. Abbreviations such as "ru" in place of "are you" only serve to make your posts more difficult to read. Please read this for more information.

[ujjwal soni]

Hi Bear,

Well i meant by the lines in web.xml not with the tlds.

I will take care from next time that correct words are being used..

[Bear Bibeault]

ujjwal soni wrote:Well i meant by the lines in web.xml not with the tlds.

That's what I was talking about. The JSTL should not be declared in the web.xml. Nor should the c.tld file be removed from the jar file and placed anywhere within the web app.

The TLD files are already in the JSTL jar files and the container will find them there.

[ujjwal soni]

Ok, got your point....Thanks....