@Transactional doesn't work

[ch_space]

Dao：

@Repository  
public class UserDaoImpl implements UserDao {   
    @Autowired  
    private HibernateTemplate tmp;   
  
    public void addUser(Users u) {   
        tmp.save(u);   
    }   
}

Service:

@Service  
@Transactional  
public class UserServiceImpl implements UserService {   
    @Autowired  
    private UserDao userDao;   
       
    public void addUser(Users u) {   
        this.userDao.addUser(u);   
        //throw an exception to test whether the transaction will rollback.   
        throw new RuntimeException("Exception occurred in UserService...");   
    }   
}

XML configuration

<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
    <property name="sessionFactory" ref="sessionFactory" />  
</bean>  
<tx:annotation-driven transaction-manager="transactionManager" />  
<context:component-scan base-package="com.spring" />

in the service,i throw an exception to test whether the transaction will rollback, however,the transaction didn't rollback.
So who can tell me why? thanks very muck!

[Marten Deinum]

How are you testing this?

If you use MySQL make sure you use InnoDB tables and not MyISAM tables the latter doesn't support transactions.

[ch_space]

How are you testing this?

If you use MySQL make sure you use InnoDB tables and not MyISAM tables the latter doesn't support transactions.

Thank you,there is something wrong in the XML configuration.
The <tx:...> and <Context:...> should be in the xxx-servlet.xml,not the applicationContext.xml.