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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