Testing for a User in a Session (JSP/Servlet)
I'm really struggling trying to figure out how best to approach a
problem I have.
My project is a simple web application that requires user
authentication. To accomplish this, the first page is a login JSP
that forwards a user's credentials to a loginCheck servlet. Upon
approval, it forwards to the main JSP of the app.
If a user has already logged in (User bean object created and in the
Session), I want it to redirect all requests to the main JSP rather
then the login JSP.
I created a tag to handle this but I ran into an endless loop. Basic
logic for checking:
UserBean user = (UserBean)
if (user != null)
RequestDispatcher dis =
} catch (Exception e)
Can anyone help me with the logic here? I want this tag to be usable
on all pages of the system, but I want to avoid the endless
redirecting that occurs when you get logged in and load "welcome.jsp".
Thanks for your help!
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