Solved

invoking one line of jsp from javascript

Posted on 2006-11-13
6
253 Views
Last Modified: 2010-04-01

Hi all,

Im trying to call a piece of jsp code from within a javascript function like so:

function reset()
{
alert("change made");
<%
session.removeAttribute("value");
%>
}

<html:select property="process" onchange="reset()">

The alert gets called when its supposed to, in that every time I make a change the alert gets displayed. But everytime the user visits the page the line:
session.removeAttribute("value");
gets called when it should be just called when the function reset in invoked.

Any help is greatly appreciated.

Thanks


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Comment
Question by:ip_packet
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6 Comments
 
LVL 16

Expert Comment

by:Peter Kwan
ID: 17929401
You cannot do that, since the scriptlet are evaluated on serverside before the page is presented to the client side.
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LVL 16

Accepted Solution

by:
Peter Kwan earned 138 total points
ID: 17929408
One way is to submit a form to the server side and process your statement and then return back to the input page.
0
 

Author Comment

by:ip_packet
ID: 17930180


>>process your statement and then return back to the input page

Do you mean use javascript to re-direct to a jsp page and then do the processing on that page?
0
 
LVL 11

Assisted Solution

by:Manish
Manish earned 137 total points
ID: 17930318
You are not using any servlet ? just submit the form to that servlet or jsp (if you are using jsp) ,remove whatever value you want to remove from session , come back to same page..with values.
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