Question

我在应用程序中定义了以下配置

@Bean
@Primary
@ConfigurationProperties(prefix="database1")
public DataSource rameshDS()
{
    return DataSourceBuilder.create().build();
}

@Primary
@Bean(name = "rameshEntityManagerFactory")
public LocalContainerEntityManagerFactoryBean rameshEntityManagerFactory(EntityManagerFactoryBuilder builder) {
 return builder
               .dataSource(rameshDS())
               .packages("com.nandagiri.entities")
               .build();
   }

@Primary
@Bean(name = "rameshTransactionManager")
public PlatformTransactionManager rameshTransactionManager(
        final @Qualifier("rameshEntityManagerFactory") LocalContainerEntityManagerFactoryBean rameshEntityManagerFactory) {
    return new JpaTransactionManager(rameshEntityManagerFactory.getObject());
}

如果我尝试通过以下方式将数据插入其中一个表中，则数据不会持久保存。但是，如果我取消注释以明确开始/提交事务的行，那么它就可以正常工作。但是，我想使用声明式的交易方式。如何实现呢？

@Autowired
@Qualifier("rameshEntityManagerFactory")
EntityManagerFactory rameshEntity;


@Override
@Transactional(value = "rameshTransactionManager")
public void storeInfo(Ramesh ramesh) 
{
    EntityManager em = rameshEntity.createEntityManager();
    //em.getTransaction().begin();
    em.persist(ramesh);
    //em.getTransaction().commit();

}

如果我使用存储库接口持久化实体，则可以正常工作，没有任何问题。请在下面找到代码。

@Repository
public interface RameshRepository extends JpaRepository<Ramesh,      String>
{
 }

@Transactional(transactionManager = "rameshTransactionManager",  propagation = Propagation.REQUIRED)
public void saveRameshs()
{
    saveRamesh1();
    saveRamesh2();

}

@Transactional
public void saveRamesh1()
{
    Ramesh ramesh = new Ramesh();
    ramesh.setId("8");
    ramesh.setFname("jagadeesh");
    ramesh.setLname("K");

    repository.save(ramesh);

}

@Transactional
public void saveRamesh2()
{
    Ramesh ramesh = new Ramesh();
    ramesh.setId("9");
    ramesh.setFname("jagadeesh123");
    ramesh.setLname("k123");

    repository.save(ramesh);
    //int x = 5/0;
}

如何与EntityManagerFactory一起使用spring声明式事务？

0 个答案: