Ouch, that sounds awkward. Is there any reason for stripping headers
from the response when calling sendRedirect()? In what way is such
behaviour specified by Sun; is it considered acceptable to implement
this method in that way?
I may have something to tell you though, because I am in fact using Jrun
as my servlet engine. So it might seem that the Jrun-people have changed
the implementation of the sendRedirect() method. Good news, I hope. :-)
I do not know which build we are presently using, but after having
strange problems with sessions in our copy of Jrun 2.3, we downloaded a
new copy (Jrun 2.3.2) 4 days ago. So we hope we are using the most
recent build (?) available.
Now all I want to find out is how to send a "moved temporarily" message
without using servlets, so if anyone knows a way they are welcome to
mail me directly (I think it is a little too off-topic).
Thanks everyone (especially Craig; your explanation was very
clarifying!).
/Micael
> -----Ursprungligt meddelande-----
> Fr�n: Rod McChesney [SMTP:[EMAIL PROTECTED]]
> Skickat: den 12 augusti 1999 19:51
> Till: [EMAIL PROTECTED]
> �mne: Re: What is a sendRedirect really?
>
> I don't know which engine you're using, but it's worth knowing that
> recent JRun builds strip cookies (and I guess other) headers when
> sendRedirect is called. They don't consider this a bug, but I do.
> The workaround is:
>
> resp.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
> resp.setHeader("Location", location);
>
> instead of resp.sendRedirect(location).
>
> Rod McChesney, Korobra
>
>
> XJ: Micael K�llman wrote:
> >
> > Hello
> >
> > I wonder what really happens when you do a call to the
> > HttpServletResponse.sendRedirect() method. I happened to use both
> > sessions and normal cookies in a servlet before doing a
> sendRedirect(),
> > and to my surprise it worked. I guess I shouldn't have been
> surprised
> > since every response has to use the HTTP-protocol, but I still
> wonder
> > where the redirection actually takes place. Is it a special header?
> > Could it be a meta-tag in the body of the response? I am just
> guessing
> > here. Is there any risk that it could be implemented differently in
> > different servers / servlet engines? Would the server influence the
> > behaviour in any way?
> >
> > In a posting a few days ago I saw that it was possible to specify a
> > target-frame by setting a header; can sendRedirect() be used in any
> > other special ways that might be useful?
> >
> > Samplecode with Cookie and sendRedirect()
> > Cookie userLevel = new Cookie("level",5);
> > userLevel.setMaxAge(-1);
> > res.addCookie(userLevel);
> > res.sendRedirect("http://domain/servlet/somewhere.html");
> >
> > TIA
> > /Micael
> >
> >
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