Universal Login Authorization in JSP

Question

I need a help on login authorization. When I use a direct link of one of my web page without providing credentials (without logging in) then I need to be redirected to the login page for proper login with login credentials. How can I go about this with JSP?

Answer 1

• Create a filter

• Check for some session attribute . if present consider logged in user , otherwise response.sendRedirect("url to login page");