About session, session

About session, session

HttpSession

HttpServletRequest. getSession ()

HibernateSessionFactory. getSession ()

The lifecycle of HttpSession is the longest among the three, which exists in the whole conversation (destroyed after the browser is closed ),
Used to store the data used by a single user in this session.

HttpServletRequest and getSession () are also used to store session data, but they only apply to a single request, for example, forwarding (page Jump). redirection is invalid.

HibernateSessionFactory. getSession () is used to cache data between the business layer and the database,
You need to manually obtain and disable it. It only exists in a single operation on the database, and the database is destroyed after the operation is completed.

The above remarks are purely nonsense.

Smile ~