Spring @Transactional not creating required transaction

Question

Ok, so I\'ve finally bowed to peer pressure and started using Spring in my web app :-)...

So I\'m trying to get the transaction handling stuff to work, and I just can\'t

Answer 1

The instance of entity manager obtained from EntityManagerFactory.createEntityManager() doesn't participate in Spring-managed transactions.

The usual way to obtain an entity manager is to inject it using @PersistenceContext-annotated property:

@PersistenceContext
public void setEntityManager(EntityManager em) { ... }