Spring 事务单元测试 - Hibernate 查询不回滚
我正在使用 Spring 3 和 Hibernate 3.5,我没有让我的事务在测试环境中回滚,这让我担心它们也不会在生产中回滚。
测试类:
@ContextConfiguration(loader = MyConfigurationLoader.class)
@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
public class DashTemplateRepositoryTest extends AbstractMulitpleDataSourceSpringContextTests {
@Autowired
DashTemplateRepository dashTemplateRepository;
@Test
public void testSaveCategory() {
int initialCount = getCategoryCount();
Category c = new Category();
c.setName("mynewcategory");
dashTemplateRepository.save(c);
assertEquals(initialCount + 1, getCategoryCount());
}
}
它扩展了自定义类:
public abstract class AbstractTransactionalTemplateTests extends AbstractTransactionalJUnit4SpringContextTests {
protected SimpleJdbcTemplate simpleJdbcTemplate;
@Autowired
DashTemplateRepository dashTemplateRepository;
@Resource(name = "dashDataSource")
public void setDataSource(final DataSource dataSource) {
this.simpleJdbcTemplate = new SimpleJdbcTemplate(dataSource);
} ..snip...
更新:我需要执行 simpleJdbcTemplate 插入,因为我有多个数据源,并且默认情况下此测试类无法处理该问题,我无法找到 spring 支持的解决方案,但是春季论坛的一位贡献者发布了此解决方法。在我提取这个超类之前就存在回滚问题。我假设问题比这更基本,休眠似乎不知道事务管理器,有什么方法可以证明这一点?
数据源Bean:
<bean id="dashDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/dashtemplate"/>
<property name="username" .../>
<property name="password" .../>
</bean>
我的Context-text.xml(简化,省略了其中一些)
<!-- Hibernate -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dashDataSource" />
<property name="annotatedClasses">
<list>
<value>com.dash.Category</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
</props>
</property>
</bean>
<bean id="dashTemplateRepository" class="com.wdp.DashTemplateRepositoryHibernateTemplateImpl">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
测试运行良好,我的对象被持久化,但它永远不会回滚,也没有出现任何错误
I am using Spring 3, and Hibernate 3.5, I am not getting my transactions to rollback in the test environment, which has me worried they would not be rolled back in production either.
Test Class:
@ContextConfiguration(loader = MyConfigurationLoader.class)
@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
public class DashTemplateRepositoryTest extends AbstractMulitpleDataSourceSpringContextTests {
@Autowired
DashTemplateRepository dashTemplateRepository;
@Test
public void testSaveCategory() {
int initialCount = getCategoryCount();
Category c = new Category();
c.setName("mynewcategory");
dashTemplateRepository.save(c);
assertEquals(initialCount + 1, getCategoryCount());
}
}
Which extends a custom class :
public abstract class AbstractTransactionalTemplateTests extends AbstractTransactionalJUnit4SpringContextTests {
protected SimpleJdbcTemplate simpleJdbcTemplate;
@Autowired
DashTemplateRepository dashTemplateRepository;
@Resource(name = "dashDataSource")
public void setDataSource(final DataSource dataSource) {
this.simpleJdbcTemplate = new SimpleJdbcTemplate(dataSource);
} ..snip...
UPDATE: I needed to do the simpleJdbcTemplate insertion because I have multiple dataSources, and by default this test class can't handle that, I wasn't able to find a spring supported solution, but on the spring forums a contributor posted this workaround. The rollback problem existed before I extracted this super class. I'm assuming the problem is more basic than that, hibernate doesn't seem to be aware of the transaction manager, is there any way I can prove that?
Datasource Bean:
<bean id="dashDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/dashtemplate"/>
<property name="username" .../>
<property name="password" .../>
</bean>
My Context-text.xml (simplified, left out some of it)
<!-- Hibernate -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dashDataSource" />
<property name="annotatedClasses">
<list>
<value>com.dash.Category</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
</props>
</property>
</bean>
<bean id="dashTemplateRepository" class="com.wdp.DashTemplateRepositoryHibernateTemplateImpl">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>
The test runs fine, my object is persisted, but it is never rolled back, there doesn't appear to be any errors either
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问题是 MySQL 使用 MyISAM 而不是 InnoDB - MyISAM 不支持回滚
The problem was that MySQL was using MyISAM instead of InnoDB - rollbacks are not supported by MyISAM
这就是我的基础测试类的样子,并且对我来说效果很好。
This is what my base test class looks like and works fine for me.