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  1. 05-21-2012, 10:55 PM #1
    anchitanc
    anchitanc is offline Member
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    Default Error in EL function

    Hi,

    i am trying to run some EL function. but i am getting this error

    my jsp file is:-
    Java Code: 
    <@ taglib perfix="taglib_test" uri="first_tld.tld" %>  
<html>  
<body>  
  
${taglib_test:test_name()}  
  
</body>  
</html>

    and function class in WEB-INF/classes/EL1/test1_class.class:-
    Java Code: 
    package El1;  
public class test1_class  
{  
    public static int first_fun()  
    {  
        return 10;  
    }  
}
    and my tld file in (WEB-INF/tags/first_tld.tld) :-

    Java Code: 
    <?xml version="1.0" encoding="ISO-8859-1"?>    
    
<taglib 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 http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"    
     version="2.5">    
    
  <tlib-version>2.0</tlib-version>  
  <uri>first_tld.tld</uri>  
  <function>  
    <name>test_name</name>  
    <function-class>EL1.test1_class</function-class>  
    <function-signature>  
    int first_fun()  
    </function-signature>  
   </function>  
</taglib>
    my web.xml is :-

    Java Code: 
    <?xml version="1.0" encoding="ISO-8859-1"?>  
  
<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 http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"  
    version="2.5">  
  
       <taglib>  
        <taglib-uri>  
          first_tld.tld  
        </taglib-uri>  
        <taglib-location>  
           /WEB-INF/tags/first_tld.tld  
        </taglib-location>  
    </taglib>  
   
</web-app>
    i am getting this error at startup of tomcat:-
    Java Code: 
    SEVERE: Begin event threw exception  
java.lang.IllegalArgumentException: taglib definition not consistent with specif  
ication version  
        at org.apache.catalina.startup.TaglibLocationRule.begin(WebRuleSet.java:  
1164)  
        at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1  
276)  
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startEle  
ment(Unknown Source)  
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp  
l.scanStartElement(Unknown Source)  
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp  
l$FragmentContentDriver.next(Unknown Source)  
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(U  
nknown Source)  
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp  
l.scanDocument(Unknown Source)  
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
        at java.lang.Thread.run(Unknown Source)  
Caused by: java.lang.IllegalArgumentException: taglib definition not consistent  
with specification version  
        at org.apache.catalina.startup.TaglibLocationRule.begin(WebRuleSet.java:  
1164)  
        at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1  
276)  
        ... 30 more
    and when i remove web.xml file that time tomcat get started but i get below error in jsp page :-
    Java Code: 
    exception  
  
org.apache.jasper.JasperException: /test.jsp (line: 5, column: 2) The attribute prefix taglib_test does not correspond to any imported tag library  
    org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)  
    org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:408)  
    org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:149)  
    org.apache.jasper.compiler.Validator$ValidateVisitor$1FVVisitor.visit(Validator.java:1536)  
    org.apache.jasper.compiler.ELNode$Function.accept(ELNode.java:137)
    someone please help me to solve it....


    Thanks
    Anchit
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  2. 05-31-2012, 09:04 AM #2
    nicephotog
    nicephotog is offline Member
    Join Date
    Mar 2012
    Posts
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    Rep Power
    0

    Default Re: Error in EL function

    WEB-INF/tags/first_tld.tld

    should be
    WEB-INF/first_tld.tld

    you don't store .tld in /tags/(its for .tag) or the uri would be
    /tags/first_tld.tld
    if this operates ok its up to you, but another problem also may be the _ underscore character in XML names (I don't recall whether thats valid).
    I avoid a lot of stranger stuff just to keep it simple.
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« Using java class in JSP | Client-side or server-side XML parsing? »

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