Java 为什么我能';无法在内存数据库中进行回滚?
我有一个测试类,它测试我的DAO类。从理论上讲,它应该先运行一个链→ 测验→ 之后在一个事务中进行回滚,但看起来不是这样。每次创建一个新id(123->456而不是123->123)。我猜内存中的DBs(我使用H2)就是这样工作的,我没有弄错。有了Postgres设置,它就足够好了 我查过:Java 为什么我能';无法在内存数据库中进行回滚?,java,spring,hibernate,h2,Java,Spring,Hibernate,H2,我有一个测试类,它测试我的DAO类。从理论上讲,它应该先运行一个链→ 测验→ 之后在一个事务中进行回滚,但看起来不是这样。每次创建一个新id(123->456而不是123->123)。我猜内存中的DBs(我使用H2)就是这样工作的,我没有弄错。有了Postgres设置,它就足够好了 我查过: 配置、注释和传播级别 我试图使用hibernate.connection.autocommit=false HSQLDB 但我没有发现错误 TransactionSynchronizationManager
hibernate.connection.autocommit=false
TransactionSynchronizationManager.isActualTransactionActive()
返回true
PersistenceConfig:
@Configuration
@ComponentScan("com.beginnercourse.softcomputer")
@PropertySource({"classpath:persistence-postgres.properties"})
@PropertySource({"classpath:persistence-h2.properties"})
@EnableTransactionManagement
public class PersistenceConfig {
@Autowired
private Environment environment;
@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory sessionFactory) {
HibernateTransactionManager transactionManager = new HibernateTransactionManager();
transactionManager.setSessionFactory(sessionFactory);
return transactionManager;
}
@Bean
@Profile("postgres")
public DataSource postgresDataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName(requireNonNull(environment.getProperty("jdbc.postgres.driverClassName")));
dataSource.setUrl(requireNonNull(environment.getProperty("jdbc.postgres.connection_url")));
dataSource.setUsername(requireNonNull(environment.getProperty("jdbc.postgres.username")));
dataSource.setPassword(requireNonNull(environment.getProperty("jdbc.postgres.password")));
return dataSource;
}
@Bean
@Profile("postgres")
public LocalSessionFactoryBean postgresSessionFactory() {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
sessionFactory.setDataSource(postgresDataSource());
sessionFactory.setPackagesToScan(
new String[]{"com.beginnercourse.softcomputer"});
sessionFactory.setHibernateProperties(postgresAdditionalProperties());
return sessionFactory;
}
private Properties postgresAdditionalProperties() {
final Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.hbm2ddl.auto", requireNonNull(environment.getProperty("hibernate.postgres.hbm2ddl.auto")));
hibernateProperties.setProperty("hibernate.dialect", requireNonNull(environment.getProperty("hibernate.postgres.dialect")));
hibernateProperties.setProperty("hibernate.show_sql", requireNonNull(environment.getProperty("hibernate.postgres.show_sql")));
hibernateProperties.setProperty("hibernate.default_schema", requireNonNull(environment.getProperty("hibernate.postgres.default_schema")));
// hibernateProperties.setProperty("hibernate.cache.use_second_level_cache", requireNonNull(environment.getProperty("hibernate.cache.use_second_level_cache")));
// hibernateProperties.setProperty("hibernate.cache.use_query_cache", requireNonNull(environment.getProperty("hibernate.cache.use_query_cache")));
return hibernateProperties;
}
@Bean
@Profile("oracle")
public DataSource oracleDataSource() throws NamingException {
return (DataSource) new JndiTemplate().lookup(requireNonNull(environment.getProperty("jdbc.url")));
}
@Bean
@Profile("test")
public LocalSessionFactoryBean testSessionFactory(DataSource dataSource ) {
LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
// postgresSessionFactory.setDataSource(postgresDataSource());
sessionFactory.setDataSource(dataSource);
sessionFactory.setPackagesToScan(
new String[]{"com.beginnercourse.softcomputer"});
sessionFactory.setHibernateProperties(testAdditionalProperties());
return sessionFactory;
}
@Bean
@Profile("test")
public DataSource h2DataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setDriverClassName(requireNonNull(environment.getProperty("jdbc.h2.driverClassName")));
dataSource.setUrl(requireNonNull(environment.getProperty("jdbc.h2.connection_url")));
dataSource.setUsername(requireNonNull(environment.getProperty("jdbc.h2.username")));
dataSource.setPassword(requireNonNull(environment.getProperty("jdbc.h2.password")));
return dataSource;
}
private Properties testAdditionalProperties() {
final Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.hbm2ddl.auto", requireNonNull(environment.getProperty("hibernate.h2.hbm2ddl.auto")));
hibernateProperties.setProperty("hibernate.dialect", requireNonNull(environment.getProperty("hibernate.h2.dialect")));
hibernateProperties.setProperty("hibernate.show_sql", requireNonNull(environment.getProperty("hibernate.h2.show_sql")));
hibernateProperties.setProperty("hibernate.globally_quoted_identifiers", requireNonNull(environment.getProperty("hibernate.h2.globally_quoted_identifiers")));
hibernateProperties.setProperty("hibernate.connection.autocommit", requireNonNull(environment.getProperty("hibernate.h2.connection.autocommit")));
return hibernateProperties;
}
}
氢性质
jdbc.h2.driverClassName=org.h2.Driver
jdbc.h2.connection_url=jdbc:h2:mem:e-commerce
jdbc.h2.username=sa
jdbc.h2.password=sa
hibernate.h2.dialect=org.hibernate.dialect.H2Dialect
hibernate.h2.show_sql=false
hibernate.h2.hbm2ddl.auto=update
hibernate.h2.globally_quoted_identifiers=true
hibernate.h2.connection.autocommit = false
TestDaoImpl
@ActiveProfiles(profiles = "test")
//@ActiveProfiles(profiles = "postgres")
@RunWith(SpringRunner.class)
@ContextConfiguration(classes = {
WebConfig.class,
PersistenceConfig.class,
})
@WebAppConfiguration
@Transactional
@Rollback
public class CustomerDaoImplTest {
@Autowired
private CustomerDao customerDao;
@Before
public void setUp() throws Exception {
CustomerEntity veronicaCustomer = new CustomerEntity();
veronicaCustomer.setName("Veronica");
customerDao.create(veronicaCustomer);
CustomerEntity hannaCustomer = new CustomerEntity();
hannaCustomer.setName("Hanna");
customerDao.create(hannaCustomer);
CustomerEntity ericCustomer = new CustomerEntity();
ericCustomer.setName("Eric");
customerDao.create(ericCustomer);
}
@After
public void tearDown() throws Exception {
customerDao.remove((long) 1);
customerDao.remove((long) 2);
customerDao.remove((long) 3);
}
@Test
public void find_must_return_an_object_by_id() throws NoCustomerWithSuchParametersException {
CustomerEntity customer = new CustomerEntity();
customer.setName("Veronica");
assertEquals(customerDao.find((long) 1).get().getName(), customer.getName());
}
@Test(expected = EntityNotFoundException.class)
public void should_optional_empty() {
assertEquals(customerDao.find((long) 55), Optional.empty());
}
}
还有其他人遇到过类似的情况吗?是什么让你认为交易没有被回滚 分配了值为1、2、3的ID,尽管进行了回滚,H2数据库还是拒绝重用它们 这里有一个关于这方面的讨论(在MySQL方面,但类似的行为) 您可以在测试之间重置自动增量值: 或者,您可以简单地更新代码以手动设置标识符:
CustomerEntity veronicaCustomer = new CustomerEntity();
veronicaCustomer.setid(1L);
veronicaCustomer.setName("Veronica");
根据这个问题(),它应该在H2中工作,没有任何问题。对于其他数据库(例如SQLServer),可能需要显式启用标识插入以手动设置标识列上的值