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JSTL- throwing exceptions, cannot resolve

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posted 19 years ago

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Hi,

I am trying to use jstl-1.0. A very basic jsp page is throwing following exceptions. Please look at the jsp page below the exceptions. Kindly note that I am using tomcat 4.1 and jstl.jar & standard.jar is present in the lib folder. I even tried to use the jstl-examples shipped with Java Web Services Developer Pack (Java WSDP). I am getting the same exception. Can anybody help me resolving this problem.

org.apache.jasper.JasperException: null(-1,-1) This absolute uri (http://java.sun.com/jstl/core) cannot be resolved in either web.xml or the jar files deployed with this application
at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:94)
at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:417)
at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:154)
at org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:159)......................

<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<html>
<head>
<title>Simple Example</title>
</head>
<body>
<c:set var="browser" value="${header['User-Agent']}"/>
<c

ut value="${browser}"/>
</body>
</html>

Chris Stehno

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Posts: 180

posted 19 years ago

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My first thought is that you dont have the taglib defined in the web.xml file or it is incorrect.

The uri is what you use to identify the taglib. It can be anything as long as you use the same thing in your JSP page taglib declaration.
The location is the path from the doc root to your tld file for the taglib.
The is pretty much the last item in your web.xml file. You may want to refer to the tomcat docs for more info on placement.

Hope this helps.

- Chris Stehno, SCPJ

Swapan Mazumdar

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Posts: 83

posted 19 years ago

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Originally posted by Chris Stehno:
...
<taglib> <taglib-uri>/jstl/core</taglib-uri> <taglib-location>/WEB-INF/tld/c.tld</taglib-location> </taglib> ...

Chris,

I very much thought of that but I just managed to resolve that issue after downloading jakarta-taglibs-standard-1.1.2 and used the examples from standar-examples with tomcat5.
Surprisingly, its web.xml has basic elements like <description> and <welcome-file-list>. I can't see any <taglib> entries. But all the examples work so well. But it has jstl-examples.tld file in tlds folder which either has no such entries.

I am so much puzzled to base my knowledge on something specific.
BTW how does
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
and
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %> can affect in normal functioning.
Kindly reply,

Don't get me started about those stupid light bulbs.