What are the different types of session management in J2EE?

Types of Session Management in J2EE

In J2EE, session management is essential for maintaining state between client and server. There are primarily three types of session management in J2EE:

1. HTTP Session Management: This type of session management is based on cookies and is the most commonly used method in J2EE. It uses a unique session ID to identify and track user sessions.
2. Stateful EJB Session Beans: Stateful session beans in J2EE allow for maintaining conversational state with a client. Each client has a dedicated instance of the session bean, which retains its state between method calls.
3. URL Rewriting: URL rewriting involves adding a unique session ID to URLs, allowing the server to identify and maintain session state for each client. This method is commonly used when cookies are disabled.

Each type of session management serves specific purposes in J2EE applications, providing different approaches to maintaining user sessions and state.