Spring交易-防止未经检查的异常后发生回滚（RuntimeException）

Question

我无法避免在RuntimeException之后阻止事务回滚。我的环境是在Websphere 8.0上运行的Spring 4.1 + Hibernate
3.6 + JTA（WebSphereUowTransactionManager）。

首先，一个简单的情况表现出预期的效果。由于我 捕获了RuntimeException ，因此事务提交并成功创建了新资源。

@Service("fooService")
public class FooServiceImpl implements IFooService {

    @Transactional
    @Override
    public void doStuff(Resource res){
        authService.createResource(res, "ADMIN");
        try {
            throw new RuntimeException("SOMETHING");
        } catch (RuntimeException e) {
            e.printStackTrace();
        }
    }

下一个也可以。我声明了 noRollbackFor ，让我们提交事务：

    @Transactional(noRollbackFor=RuntimeException.class)
    @Override
    public void doStuff2(Resource res){
        authService.createResource(res, "ADMIN");
        throw new RuntimeException("SOMETHING");
    }

最后是有问题的。区别在于，在这种情况下，对的第二次调用会引发异常authService.createResource。仅供参考，authService.createResource仅标记为@Transactional，因此默认传播配置适用，并且应加入调用服务的事务。

    @Transactional(noRollbackFor=RuntimeException.class)
    @Override
    public void doStuff12(Resource res){

        authService.createResource(res, "ADMIN");
        try{
            res.setName("EXISTING-RESOURCE");
            authService.createResource(res, "ADMIN");
        }catch(RuntimeException e){
            e.printStackTrace();
        }
    }

尽管 捕获了RuntimeException并声明了noRollbackFor 属性，但该事务始终回滚。任何解释吗？

日志跟踪信息：

org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Creating new transaction with name [null]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; '',+com.myorg.webapps.exception.ElementoYaExistente
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Invoking WebSphere UOW action: type=1, join=false
org.springframework.transaction.support.TransactionSynchronizationManager TRACE - Initializing transaction synchronization
org.springframework.transaction.interceptor.TransactionInterceptor TRACE - Getting transaction for [com.myorg.test.service.impl.FooServiceImpl.doStuff12]
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Creating new transaction with name [null]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Invoking WebSphere UOW action: type=1, join=true
org.springframework.transaction.interceptor.TransactionInterceptor TRACE - Getting transaction for [com.myorg.authmgr.service.impl.AuthorizationServiceImpl.createResource]
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Returned from WebSphere UOW action: type=1, join=true
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Creating new transaction with name [null]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Invoking WebSphere UOW action: type=1, join=true
org.springframework.transaction.interceptor.TransactionInterceptor TRACE - Getting transaction for [com.myorg.authmgr.service.impl.AuthorizationServiceImpl.createResource]
org.springframework.transaction.interceptor.RuleBasedTransactionAttribute TRACE - Applying rules to determine whether transaction should rollback on java.lang.Runtime: Couldn't create the resource, it already exists: EXISTING-RESOURCE
org.springframework.transaction.interceptor.RuleBasedTransactionAttribute TRACE - Winning rollback rule is: null
org.springframework.transaction.interceptor.RuleBasedTransactionAttribute TRACE - No relevant rollback rule found: applying default rules
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Returned from WebSphere UOW action: type=1, join=true
org.springframework.transaction.jta.WebSphereUowTransactionManager TRACE - Triggering beforeCommit synchronization
org.springframework.transaction.jta.WebSphereUowTransactionManager TRACE - Triggering beforeCompletion synchronization
org.springframework.transaction.support.TransactionSynchronizationManager TRACE - Clearing transaction synchronization
org.springframework.transaction.jta.WebSphereUowTransactionManager DEBUG - Returned from WebSphere UOW action: type=1, join=false

Answer 1

据我所知，一旦从事务方法中抛出运行时异常并被事务拦截器拦截，则该事务将被标记为仅回滚。即使从另一个事务方法调用此事务方法。

这对我来说很有意义：如果内部方法无法从异常中恢复，则无法恢复，而外部方法则不应像没有任何反应那样进行。

如果您希望交易不会回滚，则可以

• 使内部方法非事务性
• 配置内部方法，使其不回退此异常
• 有两种内部方法：
  • 一种是事务性的，旨在在尚无事务时调用，它只是委托给第二个事务
  • 非事务性的，旨在被称为现有事务的一部分