passing object from one jsp to another

[Shivaprasad P Kanaganahallimath]

Hi i need to pass an arraylist from one jsp to another jsp.
So i thought of using session object, it works fine for the first time.
But if i come back(navigate back)and submit again then the session is retaining old values also.How to get rid of the old values in session
[ April 17, 2008: Message edited by: Bear Bibeault ]

[Bear Bibeault]

session.removeAttribute()

[Shivaprasad P Kanaganahallimath]

I have tried doing it,but it doesn't seem to work when I revisit the page for third time.

[Bear Bibeault]

Originally posted by Shivaprasad P Kanaganahallimath:
but it doesn't seem to work when I revisit the page for third time.

This doesn't tell us anything that would be useful in helping you.

[Sonal Sharma]

try to use request scope if you want to retain this object for just a request

[Shivaprasad P Kanaganahallimath]

I am setting the arrayList a in request object in report.jsp
request.setAttribute("report",a);

once I submit the the form, it will go to report1.jsp
here I am supposed to get the arraylist.But when i try to do request.getAttribute("report") it returns null.

[Shivaprasad P Kanaganahallimath]

thanks to all , issue has been resolved....

[vishnu bola]

Hi Sivaprasad,

Could you please let me know how you resolved the issue? I am also facing the same problem in passign arraylist to another jsp.

It would be useful if you mention how you resolved it.

Thank You

[Vikas Kapoor]

Hey Vishnu,

It's nice that you want to help him. But the thread is more than a year old and it's very unlikely that he is still looking for the solution through this thread.

[Tauri Valor]

Have a look at the following piece of code, and try to use it in the first jsp

if(!session.getAttribute("YourSessionAttribute")).equals(null){
session.removeAttribute("YourSessionAttribute");
}

[Bear Bibeault]

Scriptlets in a JSP? It's 2009, not 2002.

Session attributes should either be handled in controllers or using JSTL tags.

[Tauri Valor]

Thanks Bear!

JSTL equivalent:

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

<c:if test="${not empty sessionScope.YourSessionAttribute}">
   <c:remove var="YourSessionAttribute" scope="session" />	
</c:if>