Tried using the browser stop button.

Stop the browser sending request by using a javascript function.
window.stop()

During the server side process for handling the "submit" button click:
Create a unique request number
Store it in the session variable, (lets say) cur-req-id
Process the request further
Each step of the process, check if the stop-${req-id} variable is
NOT NULL.
If it is NOT NULL, stop the server side process OR contine to do the
work .....
** Make sure finally section removes both cur-req-id and stop-${req-id}
variables from the session.


During the server side process for handling the "stop" button click:
Get the current request id from session variable, "cur-req-id"
Then, set a session variable, "stop-${req-id}" variable to "Y"

Hope, you get the idea here ....

Thanks,
Selva-
InfoTekies Corporation


"Kok Shong YEW" wrote in message
news:10789919.1102339133479.JavaMail.root@jserv5.. .
> Hi all,
>
> How to terminate a request which is in the midst of processing?
>
> Here's the situation:
> I have a jsp, having two buttons, "Submit" and "Stop".
> When "Submit" button is clicked, request is submitted for processing, and
> when "Stop" button is clicked, the respective request which is submitted
> (still under processing) will be terminated.
>
> How can this be done? Is there any workaround?
>
> thanks in advance

Use return statement in the JSP Scriplet to stop the request processing

e.g

<%
if(conditon) {
return;//this will stop the processing
}
%>

Muthuselvan.C

Hi,

here you get parts of a possible solution

When the user hits the stop button, or a javascript stops document from loading the socket communication is shut down immediately.

I do remember that there earlier were some method somewhere to test this socket communication, this method I can not find anymore. However there are other options.

This method will return true if there are some errors in communication to the client ( eg. socket closed )

response.getWriter().checkError()

The problem with thisone is that it toggles to true only then a failed attempt to communcate over the socket is attempted.

My little testJSP shows this, see if this code may help you.

for ( int i = 0; i < 20; i++ )
{
response.getWriter().print("a");

System.out.println("**" + i);

if ( response.getWriter().checkError() )
{
// if ever here, no point continuing
System.out.println("terminate");
}
try
{
Thread.sleep(1000);
} catch ( Exception e ) { e.printStackTrace(); }
}

- Anders M.