PublisherDAOImpl.java 文件源码

public List<PublisherEntity> findAll() {
    EntityManager em = connection.createEntityManager();
    List<PublisherEntity> result;

    try {
        em.getTransaction().begin();
        TypedQuery<PublisherEntity> query = em.createQuery("Select p from PublisherEntity p", PublisherEntity.class);
        result = query.getResultList();
        em.getTransaction().commit();
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().rollback();
        }
        em.close();
    }

    return result;
}