Hi,
In the following message "instance" means "browser window" ...
On Mon, 30 Aug 1999, Neeraj Arora wrote:
> Hi all of you,
>
> 1). I am facing the problem in sending response html page when more than one
>instance is
> open on the same machine.Can we identify the window which has send the request so
>that
> response will be directed to that particular window only.
You normally can't; the target window is controlled
through "TARGET" atributes on HTML anchor tags, servlets at the time they
received the request have no way to change it.
By default the target window is the window from wich the request was
submitted, no matter how many (browser window) instances are opened, so
normally you don't need to be bothered by these target details..
>
> 2). How can we control the number of instances on same machine?
We can't limit them. We should not be able to, it should be the user's
choice to open how many windows they want.
You can limit the windows in wich your application runs by TARGET-ing all
anchors and form tags - just add TARGET="TargetName" attributes, with
limited number of targetNames to all links (Anchors and Forms) in pages
returned by your servlet(s).
Further you can do more nasty things, by inserting in each
response javascript that check if
the name of current window is within those allowed and if not,
do unpleasant actions - close current window, or call back(7) after popup
boring warnings beginning with "Are you sure..?", or create VBA's
(Very Big Arrays) to break the browser/computer, or to make them at least
unusable.
However I won't recommend such radical measures ;-)
>
> 3). One more thing can we control the target(bottom,new window) through
> response.sendRedirect();
No. Not by servlets/http means.
But if your average client browsers normally
support javascript you can send back pages containing javascript that open
URLs in different targets than the default one, instead of
using sendRedirect().
>
> Neeraj
Regards,
Cezar
___________________________________________________________________________
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff SERVLET-INTEREST".
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
