form authentication

amy

Hi all, I couldn't fine out any example.
I want to write a small application in which authentication method will be form based. And I want to store user and  roles in database  for this application only not for all tomcat server.

How do I do it?

In fact, I want to display the login page  if not logged in.
And depending upon the role that I defined in database I want to give the permission on different pages(views).

Thank you.