you can have servlet create javascript pop up window on the fly, use
doc.write() enclosed within <script language=javascript></script>, and
the above entire jscript code within your response objects, output
content.
What you will be doing is generating popup window only no other
document.
for javascript help checck out
http://rummelplatz.uni-mannheim.de/~skoch/js/part4/part4.htm#windows
"Popova, Marina" wrote:
>
> Hi, Everybody!
> Could someone, please, advise me on what is the best way to do the
> following:
>
> In my servlet I create a form dynamically, and on submit I want to do :
> 1. execute some queries against a DB;
> 2. if the result is acceptable, create a new page with the results,
> otherwise pop up an alert window and don't reload the current HTML
> page with the form.
>
> I see two ways to do it, but I have questions on both of them:
> 1. On submit, call a new servlet which will do all DB work and check
> results.
> But: how can I pop up an alert window in case of a failure? Can I
> call a JavaScript function from a servlet?
>
> 2. On submit, call a JavaScript function, which should call a servlet or
> Java class to do the checking ( is it possible??? ), return true on success
> or false on failure (and pop up the alert window).
>
> Any ideas are greatly appreciated,
> Thanks,
> Marina
>
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