Hibernate in JSP Applications: `openSession()` vs `getCurrentSession()` - Which Should I Use?

Hibernate: openSession() vs getCurrentSession() in JSP Applications

In web applications that utilize Hibernate, several questions arise regarding session management. Below are some common questions along with their corresponding answers.

1. hibernate.current_session_context_class Value

To enable automatic session management using the current session strategy, set the hibernate.current_session_context_class configuration property to thread.

2. openSession() vs getCurrentSession()

• openSession(): Creates a new session independent of any existing session. This approach requires manually opening and closing the session, which can be inconvenient and prone to resource leaks.
• getCurrentSession(): Obtains the current session associated with the current thread or transaction. If no session exists, one is opened automatically. This approach allows persistent operations to occur without explicitly creating and closing sessions.

3. One Session per Web App vs One Session per Request

• One Session per Web App: Using a single session throughout the entire web app is not recommended because sessions are not thread-safe and cannot be shared concurrently. This approach can lead to synchronization issues and data inconsistencies.
• One Session per Request: This strategy creates a new session for each HTTP request. It simplifies session management, ensures data integrity, and is generally the preferred approach for web applications.

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