Spring: ArrayList instead of <c:forEach in jsp page

[Imre Tokai]

Hello!


I want to use java.util.ArrayList instead of <c:forEach in jsp page, because i need it in javascript
This is working well:

><c:forEach items="${items}" var="item">

</c:forEach>

but when i try with:

<%           	
    	java.util.ArrayList javaStrArray = (java.util.ArrayList)request.getAttribute("items");
%>

I get NullPointerException.

How can i use the passed array with java.util.ArrayList in jsp page?


Regards

[Omar Al Kababji]

when you use the ${items} it dosen't mean that the items arraylist is in the request scope it could be in page, request, session, application scopes i would suggest to double check if the items are in the request scope, may be they are in the session scope ;).

remember that when using EL it will go and search for the attribute in any in the following sequence .. page --> request --> session --> application


(peace)

[Bear Bibeault]

Imre Tokai wrote:I want to use java.util.ArrayList instead of <c:forEach in jsp page, because i need it in javascript

This makes little sense. What is it that you are really trying to do?

[Imre Tokai]

Thanks for your answers!


I tried with page,request,session, application -no success.

I'm using Spring framework; I want to pass an ArrayList of objects to the jsp page via SomeController's handleRequestInternal method.

model.put("items", itemsArrayList);        
return new ModelAndView(getViewName(), model);

It's working fine when I'm just writing contents of the objects from list to the page using c:forEach
But when I want to use request.getAttribute("items"); I get exception.

If I'm able to pull the values out with <c:forEach items="${items}" var="item">, why can't I do that with
<% java code parts inside jsp page%>? How can I solve this?


Regards

[Omar Al Kababji]

are you getting a NullPointerException or another type of exception ? can you post the stack trace of the exception please ?


(peace)

[Imre Tokai]

SOLVED!


It seems that it's not possible to have:

<c:forEach items="${items}
and
request.getAttribute("items"); 

on the same page.
I had that foreach for data preview. When i removed it the page started to work correctly.

Thank you for leading me to the solution!


Regards>