Problem with c:if .. /c:if tag

[Sandeep Prabhakar]

Hi Ranchers,
I am not able to get the <c:if> .. </c:if> tag working.
I have a Context Parameter called IsApplicationInProductionMode.
The idea of having this is to display debugging info or not. If IsApplicationInProductionMode has the value of 'false', I want to display some debugging info.

In one of the error page that catches all Exceptions thrown, I have the following code

<c:if test="${initParam.IsApplicationInProductionMode eq 'false'}" >
Exception on the Server - ${pageContext.exception}
</c:if>

Now the problem is - irrespective of the value in IsApplicationInProductionMode, the debugging info is always displayed.
Ranchers, please let me know if I am missing some thing here.

Cheers,
Sandeep
[ November 21, 2006: Message edited by: Sandeep Prabhakar ]

[Niranjan Deshpande]

try this -
<c:if test="${initParam.IsApplicationInProductionMode eq false}" >

since false is a reserved word for EL, it shouldnt be in duble quotes
had your IsApplicationInProductionMode been a String then your code would have had worked,

correct me if i am worng

[Sandeep Prabhakar]

Even this does not work

The web.xml entry for this context parameter is

<context-param>
<param-name>IsApplicationInProductionMode</param-name>
<param-value>true</param-value>
</context-param>
I guess it treats IsApplicationInProductionMode as String.

[Jayant Raj]

try this -
<c:if test="${initParam.IsApplicationInProductionMode == 'false'}" >

let me know if this works for you.

[Sandeep Prabhakar]

Even
<c:if test="${initParam.IsApplicationInProductionMode == 'false'}" >

does not work.

[Jayant Raj]

it works..... i made a couple of changes to an existing web application...

1] added this to the web.xml :

    
<context-param>
<param-name>IsApplicationInProductionMode</param-name>
<param-value>true</param-value>
</context-param>

2] added this on a jsp :

    
<c:if test="${initParam.IsApplicationInProductionMode == 'true'}">
<script language="JavaScript" type="text/javascript">
alert("Init param is true..");
</script>
</c:if>

when the value is true in web.xml, I get the javascript prompt... it should work in your case too...

try printing out the parameter in your jsp first...

[Sandeep Prabhakar]

Can you try setting IsApplicationInProductionMode=false.
I am getting the alert message even when IsApplicationInProductionMode=false.

Also,
When I just print the value in IsApplicationInProductionMode using the statement
${initParam.IsApplicationInProductionMode}
, the correct value is getting displayed

Cheers,
Sandeep
[ November 21, 2006: Message edited by: Sandeep Prabhakar ]

[Christophe Verré]

Please show your jsp. Did you declare the prefix like :

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

[Sandeep Prabhakar]

Hey,
I think that was the problem.
I am using Net Beans and when I try to include core tag libs, I get an error saying "could not resolve the uri"
Ranchers, please help me how to resolve this issue.

Cheers,
Sandeep

[Mark Beavis]

check that jstl.jar and standard.jar are in the lib directory of your web-app.

If you have HFJS then check out HFJS p434

[Christophe Verré]

And also read the following :
http://faq.javaranch.com/view?JstlTagLibDefinitions

[Sandeep Prabhakar]

Thanks folks.
Got it working

Cheers,
Sandeep