How do I access the variable of iterator in struts2

[Yogesh Gandhi]

Hi

I have a requirement where I am migrating struts 1 to struts2

Now in the JSP that is already written in struts1, there are scriptlets being used which are accessing the variable defined in <logic:iterator as follows >

<logic:iterate name="techTasksList" indexId="tasksIdx" id="task"
>
                                        scope="request"
                                        type="com.sbc.ept.imagine.common.techtasks.dto.ItechTasksDTO">
     
<%

              String fullName = task.getOspDesignEngg();
             // Some business logic goes here...
%>

</logic:iterate>

I have minimized the code above to the least, so that it is easy to explain the requirement. Though the scriptlet has much bigger code inside it (in actual)

Now the requirement here is to migrate it to struts 2

In struts 2, I do it something as follows

<s:iterator value="techTasksList" status="techTaskListStatus" var="task">
  <tr>
  	 <%=task.getOsPcm() %>
  </tr>
</s:iterator>

Here I am not able to access the task variable inside scriptlet as I was able to access in struts1.

It is giving compilation error.

I cannot use the struts 2 tags, because such kind of scriptlets are many in the JSP, and I want to go with the least changes so that I dont need to change the complete JSP (whcih ofcourse is error-prone)

[Joe Ess]

The "var" attribute is the name of the iterator on the Value Stack (see here).  The tag is not creating a variable with that name.

[Yogesh Gandhi]

Joe Ess wrote:The "var" attribute is the name of the iterator on the Value Stack (see here).  The tag is not creating a variable with that name.

Thanks for your response. But I need that as a variable as well (as it was being used in struts1). So that I can go ahead with minimal changes in the JSP.

Are you saying that its not possible?

[Joe Ess]

I'm saying the variable will be in the Value Stack.  It's an integral part of Struts 2.  see here
My personal opinion is that scriptlets are awful and one should avoid them at all costs.  It would also be wise to sit down and learn how to use Struts 2 effectively.  By taking the half-and-half route, you are missing out on the benefits of using Struts 2 while also causing more problems for yourself by trying to write code to get around the framework.

[Yogesh Gandhi]

Joe Ess wrote:I'm saying the variable will be in the Value Stack.  It's an integral part of Struts 2.  see here
My personal opinion is that scriptlets are awful and one should avoid them at all costs.  It would also be wise to sit down and learn how to use Struts 2 effectively.  By taking the half-and-half route, you are missing out on the benefits of using Struts 2 while also causing more problems for yourself by trying to write code to get around the framework.

I understand what you are saying, but the problem I have in hand is, that code is an already running application, which has tons of JSPs and it is already using scriptlets and variables as shown in my first post.

Now I do not want to mess up the things any further. At present the job I have in hand is, to make it compatible with Struts2.

[Yogesh Gandhi]

I found out a work around to access the variable in the scriptlet. Though not as elegant way of doing it, but still it solves the problem

<s:iterator value="#request.comboMeals" status="comboMealsStatus" id="abc">
			<tr>
				<%="HELLO " + request.getAttribute("abc") %>
                        </tr>

In this above example, the reqirement was to access the abc variable in the scriptlet


And then get that from request.getAttribute("abc")

	<h2>Using request.getAttribute to access the variable</h2>
	<table>
 		<s:iterator value="#request.comboMeals" status="comboMealsStatus" id="abc">
 			<tr>
 				<s:if test="#comboMealsStatus.even == true">
 					<td ><s:property />
 						<s:property value="%{#comboMealsStatus.index}" /></td>
 				</s:if>
 				<s:elseif test="#comboMealsStatus.first == true">
 					<td><%=request.getAttribute("abc")%> <s:property
 							value="%{#comboMealsStatus.index}" />(This is first value)</td>
 				</s:elseif>
 				<s:else>
 					<td><%=request.getAttribute("abc")%>
 						<s:property value="%{#comboMealsStatus.index}" /></td>
 				</s:else>
 			</tr>
 		</s:iterator>
 	</table>