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Explain session tracking in Java Servlet.- The state of requests for the same user is being maintained by the session of a servlet.
- Session tracking is a mechanism that is tracked and maintained by such requests by the user.
- These sessions are being shared by the servlets and accessed by a client.
- This provides a convenience to the web applications that uses multiple servlets.
- For example a shopping cart application uses the session tracking, which tracks the requests of the user for various mobile devices. In java servlets this task is being maintained by:
Cookies, URL rewriting, session objects(HttpSession) and hidden fields.Explain session tracking in servlets.- The states of a series of requests from a single user, for a stipulated period of time, are performed by the mechanism called session tracking.
- Sessions can be shared among the servlets which is a convenient for a web application that uses multiple servlets.
- HTTP is a stateless protocol.
- The server cannot remember the previous transactions.
- To identify all the requests from one user, the web server is to remember every user.
- To overcome the problem user’s information is being managed by implemented by Cookies, URL rewriting, hidden fields.
- A session i.e., a user’s requests are tracked by – obtaining a session object, storing and retrieving data from the HttpSession object and invalidate the session after a user completes flushing the requests.
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