Hello!
I implemented two filters which work fine if session handling is done with
cookies. If the session-handling is done by URL-rewriting, the session
seems to be lost after the sendRedirect().
The two filters are:
Loginfilter and
Blockfilter (some pages must be blocked in some circumstances).
The error comes up, when the block-state happens and URL-rewriting is
used. Then the following happens (from catalina.out):
...
Loginfilter: user is authenticated - user object exists.
Blockfilter: desired page must be blocked. Redirecting to
/portalmanagement/pages/block.jsp
Loginfilter: user is not authenticated - user object does not exist.
Redirecting to login.
...
If the session-handling is done with cookies, all works fine:
...
Loginfilter: user is authenticated - user object exists.
Blockfilter: desired page must be blocked. Redirecting to
/portalmanagement/pages/block.jsp
Loginfilter: user is authenticated - user object exists.
...
The code of the filter object is the following:
....
public void doFilter(ServletRequest request,
ServletResponse response,
FilterChain chain)
throws IOException, ServletException
{
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
if (something)
{
res.sendRedirect(req.getContextPath()+onFailure);
}
}
I would be glad to get some help,
kind regards,
Andreas Hartmann
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