trying to get an object from a map in struts2

[Billy Vandory]

I have the following in my tag file, and I get an exception:

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

<%@ attribute name="groupName" required="true" rtexprvalue="true" %>

<s:iterator var="group" value="myMap[${groupName}]">

org.apache.jasper.JasperException: /WEB-INF/tags/Test.tag(7,0) According to TLD or attribute directive in tag file, attribute value does not accept any expressions

If i replace myMap[${groupName}] with myMap['Jobs'] it works perfectly. From the JSP that calls the tagfile i have

<mytags:Test groupName="Jobs"/>

I also tried:

<c:set var="myValue">${groupName}</c:set>

<s:iterator var="group" value="myMap[myValue]">

(this was someone elses solution from another forum with the same problem) but I still get the same error.

I have made sure EL is working, etc.

Is there any way to pass a variable that contains a string into my myMap object (I assume myMap is OGNL) ?

Thanks,

Billy[]

[Ankit Garg]

Instead of this
<c:set var="myValue">${groupName}</c:set>
Can you try this
<s:push value="myValue">${groupName}</s:push>

[David Newton]

http://struts.apache.org/2.1.8/docs/why-cant-i-use-jstl-style-el-expressions-in-struts-tags.html

Or use <s:set>. Either I or someonebody else wrote a thing about accessing JSP tag attributes, but I can't find it at the moment. In this case, if it's a string, it's just as easy this way.

[Billy Vandory]

David Newton wrote:http://struts.apache.org/2.1.8/docs/why-cant-i-use-jstl-style-el-expressions-in-struts-tags.html

Or use <s:set>. Either I or someonebody else wrote a thing about accessing JSP tag attributes, but I can't find it at the moment. In this case, if it's a string, it's just as easy this way.

Thanks David and Ankit!