Dynamic attribute in Tag File

[Thennam Pandian]

Trying to invoke the tag using Tag file with dynamic attribute.Have followed the syntax given in the "HeadFirst Servlet and JSP".

While running the jsp file am getting the below exception :


dynamicAttribute1.tag(9,3) According to TLD or attribute directive in tag file, attribute items does not accept any expressions

Please help me to resolve the issue.
JSTL is working fine in other JSP files.

FYI: Have attached the dynamicAttribute1.tag.

[Christophe Verré]

Can you post the code ? Both the tag and the JSP where you are using it.

[Thennam Pandian]

Tag File

<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<%@ tag body-content="empty" dynamic-attributes='tagAttrs' %>
<%@ attribute name='name' required='true' rtexprvalue='true' %>
<%@ attribute name='optionList' type='java.util.List' required='true'  rtexprvalue='true'  %>


    
<select name='${name}'    
 		<c:forEach items="${tagAttrs}" var="entry" >	
		 ${entry.key} ='${entry.value}'
	</c:forEach>
>

	    
	     <c:forEach items="${optionList}" var="entry">	
	       <option value='${entry}'> ${entry} </option>
	       </c:forEach>  
	       
</select>	       

/**************/

JSP file

<%@ taglib prefix="dynamic" tagdir="/WEB-INF/tags" %>
<%@ page isELIgnored="false" import="java.util.*" %>

<% 
  List list = new ArrayList();
  list.add("one");
  list.add("two");
  list.add("three");
  list.add("four");
  request.setAttribute("list", list);
  
%>

<dynamic:dynamicAttribute1 name="selectBOX" optionList="${list}"  size="1" />

[Bear Bibeault]

The following URI is for a very old version of the JSTL:

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

I suspect you have a misconfiguration of your web app.

See the JSP FAQ for how to properly set up the JSTL and EL.

[Thennam Pandian]

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

The above URI is working fine in other JSPS.

[Christophe Verré]

Thennam Pandian wrote:

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

The above URI is working fine in other JSPS.

Bear is telling you that it's not working. He's telling you that this is the URI used for an old JSTL version. This might indicate that you are also using some old settings elsewhere, like in web.xml. Check this FAQ.

[Bear Bibeault]

Thennam Pandian wrote:The above URI is working fine in other JSPS.

You can take action to fix it, or you can continue to have problems. The choice is yours.

[Christophe Verré]

Bear Bibeault wrote:

Thennam Pandian wrote:The above URI is working fine in other JSPS.

You can take action to fix it, or you can continue to have problems. The choice is yours.

Sounds like Harry Callahan

[David Newton]

I now what you're thinking: is he using JSP 1.0, or 2.0? Well, to tell you the truth, in all this excitement I kind of lost track myself. But being as this is 2010, and we have the most powerful JSP in the world, and it blows JSP 1.0 away, you've got to ask yourself one question: Do I feel lucky? Well, do ya, punk?