EntityManager em = entityManagerFactory.createEntityManager();
TransactionSynchronizationManager.bindResource(entityManagerFactory, new EntityManagerHolder(em));
LOG.info("打开实体管理器");
}
private void closeEntityManager(){
EntityManagerHolder emHolder = (EntityManagerHolder)TransactionSynchronizationManager.unbindResource(entityManagerFactory);
LOG.info("关闭实体管理器");
EntityManagerFactoryUtils.closeEntityManager(emHolder.getEntityManager());
}