Ralf,
> To be more specise, but I do not want to restrict your answer, I could also
> think of these variant. I JSP site is requested by a browser. Every few
> seconds, the Java bean is producing a new updated version of this output website.
> How would I do this?
If all you want is a fresh page after an interval, you can do what a lot
of sites do. Put this tag in the <head> section of the page you send:
<META HTTP-EQUIV="Refresh" CONTENT="SSS; URL=URL-to-this-document">
...where SSS is the number of seconds to wait before refreshing the
page, and URL-to-this-document is the URL that produces the document you
wish to update.
Other options are using something like a Java or flash applet to display
constaqntly updated bit of information. Of course, in order to get those
data, the applets will have to request information from a server
somewhere...
> However if somebody know a more generic appraoch, please let me know? Is
> there a kind of architecture which supports this kind of programming? I think
> the main problem is HTTP since HTTP was not designed for this way of
> information provision.
You're right; HTTP isn't supposed to do what you're asking. It's
supposed to be client-server in strictly one direction.
-chris
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