javax.persistence.TransactionRequiredException：当前没有活动的事务

Question

I have Service with EntityManager and create DAO class in init method and pass EntityManager to DAO consctructor.:

@Slf4j
public class OPhoneService {
@Setter
    private EntityManager entityManager;

public void init() {
        log.info("init");
        log.info(Thread.currentThread().getName());
        oPhoneDao = new OPhoneDaoImpl(entityManager);
        List<OPhone> oPhones = oPhoneDao.getAllOPhones(0);
        OPhone oPhone = oPhones.get(0);
        oPhone.setState(1);
        oPhoneDao.merge(oPhone);
}

}

and on this line oPhoneDao.merge(oPhone); get error:

javax.persistence.TransactionRequiredException: There is no currently active transaction.

my merge method:

@Override
    public E merge(E e) {
        E merge = entityManager.merge(e);
        entityManager.flush();
        return merge;
    }

And my bean config

<bean id="oPhoneBean" class="....services.OPhoneService" init-method="init"
          scope="singleton">
        <jpa:context unitname="ophone" property="entityManager"/>
        <tx:transaction method="*" value="Required"/>
    </bean>

Answer 1

You need to start and commit transaction in your merge method.

@Override
public E merge(E e) {
    EntityTransaction tx = entityManager.getTransaction();
    tx.begin();
    E merge = entityManager.merge(e);
    tx.commit();
    entityManager.flush();
    return merge;
}

Answer 2

This is a known issue in Aries blueprint. The transactional interceptor is not added to init methods.

See ARIES-1715