mention tld file in jsp

[pramod talekar]

Hello,

I have created a tld file and placed it in WEB-INF/tag folder.

How to mention it in the jsp file ?

I'm writing

<%@taglib uri="/WEB-INF/tag/egdpagination.tld" prefix="page" %>

, but it shows "can not find tag library descriptor for ...." error.

Please advise.

[Bear Bibeault]

Don't use the file path for the URI, use the real URI for the TLD.

[pramod talekar]

Hi Bear,

Below is my .tld file code :-

What will be the uri from the below code which I'll mention in my jsp :-

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">
<taglib>
   <tlibversion>1.1</tlibversion>
   <jspversion>1.1</jspversion>
   <shortname>page</shortname>
   <tag>
      <name>GeneratePageLinks</name>
      <tagclass>com.vale.iam.sapprovisioning.common.GeneratePageLinks</tagclass>
      <bodycontent>empty</bodycontent>
      <attribute>
         <name>totalNoOfResults</name>
         <required>true</required>
         <rtexprvalue>true</rtexprvalue>
      </attribute>
      <attribute>
         <name>currentPage</name>
         <required>true</required>
         <rtexprvalue>true</rtexprvalue>
      </attribute>
      <attribute>
         <name>actionMapping</name>
         <required>true</required>
         <rtexprvalue>true</rtexprvalue>
      </attribute>  
      <attribute>
         <name>resultsPerPage</name>
         <required>false</required>
         <rtexprvalue>false</rtexprvalue>
      </attribute> <!--
This attribute is introduced for forcefull form submission on data entry screens.
It takes the javascript function name for the creation of the uri.

e.g. javascriptFormSubmit="Submit"

This gets translated as <a href=javascript:Submit(pageNum)> pageNum </a>

When this attribute is used the actionMapping attribute becomes redundant i.e.
it still is a mandatory field but its value is no more included in the creation of the uri.
-->
      <attribute>
         <name>javascriptFormSubmit</name>
         <required>false</required>
         <rtexprvalue>false</rtexprvalue>
      </attribute>       
   </tag>
</taglib>

The file is stored as egdpagination.tld

The below statement in my jsp file uses this tag :-

<page:GeneratePageLinks totalNoOfResults='<%= approvalActivityList.size %>' currentPage='<%=request.getAttribute(GeneratePageLinksHelper.currentPage)%>' actionMapping='/bulkConfirm'/>

[pramod talekar]

Hey Bear,

I got the solution for this problem.

I kept it as <% ...." /WEB-INF/tags/egdpagination.tld" ....%> , I didn't have any <uri> tag in my tld file and I also mentioned the following code in my web.xml file :-

<taglib>
    <taglib-uri>/WEB-INF/tags/egdpagination.tld</taglib-uri>
    <taglib-location>/WEB-INF/tags/egdpagination.tld</taglib-location>
  </taglib>

[Stefan Evans]

Well thats one way to do it.
But not the best IMO.

The better way is to indicate the URI in the tld with the uri tag: <uri>my.tag.egdpagination</uri>

<?xml version="1.0" encoding="UTF-8"?>  
<!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN" "http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd">  
<taglib>  
   <tlibversion>1.1</tlibversion>  
   <jspversion>1.1</jspversion>  
   <shortname>page</shortname>  
   <uri>my.tag.egdpagination</uri>

    ...

You can then get rid of the entry in your web.xml file.

[Bear Bibeault]

Stefan Evans wrote:Well thats one way to do it.
But not the best IMO.

I'll go further and say that it's a very poor and fragile way to do it.

Assign a real URI to the TLD as Stefan outlined.

[pramod talekar]

Thanks Stefan and Bear for your advice.

Regards,
Pramod