Question

我正在构建一个Spring 4 + Hibernate 4应用程序。我的配置是这样的：

@Bean
public LocalSessionFactoryBean sessionFactory() {
    LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
    sessionFactory.setDataSource(dataSource());
    sessionFactory.setPackagesToScan(packagesDaoAnotaciones);
    sessionFactory.setHibernateProperties(hibernateProperties());
    return sessionFactory;
}

@Bean
public DataSource dataSource() {
    // Configuración del DataSource por el Servidor.
    final JndiDataSourceLookup dsLookup = new JndiDataSourceLookup();
    dsLookup.setResourceRef(true);
    DataSource dataSource = dsLookup.getDataSource(environment.getRequiredProperty("jndi.datasource"));
    return dataSource;
}

private Properties hibernateProperties() {
    Properties properties = new Properties();
    properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
    properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
    properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
    properties.put("hibernate.generate_statistics", "true");

    return properties;
}

@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory s) {
    HibernateTransactionManager txManager = new HibernateTransactionManager();
    txManager.setSessionFactory(s);
    return txManager;
}

我有这种方法的服务：

@Override
@Transactional(propagation = Propagation.REQUIRES_NEW, rollbackFor = Exception.class)
public void processThis() throws Exception {
    List<String> myList = new ArrayList<>();
    myList.add("1234567890");

    myDao.update(myList,'01', "1234567890");

    LOGGER.info("buahhhhhhhhhhhhhhhhhhhhhhh");
}

Dao执行如下的HQL查询：

    @Override
public int update(List<String> data, String data1, String data2) {
    StringBuffer hql = new StringBuffer();
    hql.append("UPDATE MyTablenp SET np.field1 = :d1, field2= sysdate, field3= :d2, field4= sysdate, field5= null,field6= null    WHERE np.data IN (:num)");

    this.getSession().getTransaction().isActive();
    Query query = this.getSession().createQuery(hql.toString());
    query.setParameterList("num", data);
    query.setParameter("d1", data1);
    query.setParameter("d2", data2);

    return query.executeUpdate();
}

当我执行此操作时，我可以看到在dao方法结束后刚刚在BBDD中修改的数据，但是服务方法还没有完成，所以它在没有完成事务方法的情况下提交HQL。有人知道如何避免该提交并仅在服务方法结束时提交吗？

Answer 1

您应该使用带注释的方法proccessThis()开始时由hibernate打开的现有会话。在您的DAO中执行以下操作：

删除此：this.getSession().getTransaction().isActive();

，而是从会话工厂获取当前会话（假设您已扩展HibernateDaoSupport）：

Session session = this.getHibernateTemplate().getSessionFactory().getCurrentSession();

HQL加载事务

1 个答案: