java - how to handle public and private jsp pages/servlet under login with a Filter -

java - how to handle public and private jsp pages/servlet under login with a Filter -

i've been studying while java , jsp. im developing little application test knowledge. in application have public pages , pages need log in. every jsp page have servlet handles it.

i created filter check if user logged in checking if session exist.

my question is: how should handle jsp pages/servlet? should set public jsp pages/servlet in 1 folder , 'private' jsp pages/servlet in , tell filter check jsp pages/servlet under 'private' folder? or should tell filter check every jsp pages/servlet , tell jsp pages/servlet not private knows doesn't need redirect users login page?

java jsp