Tutorial IV: Adding A Login Feature
From Humanitarian FOSS Summer Institute
Sor far, a user needs to give a password every time they want to add a post or a comment to a post. This seems awfully inefficient, as a user should be able to log in once and add and view posts/comments as they choose until they log out. This step in the tutorial will add a login feature to the previously created web log. It uses something called an HTTPSession to store a user's session.

