java - Spring 事务 - 需要新的 - 父级回滚

Question

我有一项可以完成一些工作的服务:

@Service
@Transactional
public class FooServiceImpl implements FooService {

  @Override
  public void invoke() { 
      process();
  }

  public void process() {

    // possible that will throw exception
    elements.forEach -> processOne(..)

  }

  @Transactional(propagation = Propagation.REQUIRES_NEW)
  public void processOne(..) {

  // possible that will throw exception

  }

}

invoke() 方法是从另一个组件调用的。据我了解，此方法在事务中运行(如果存在 - 继续，如果不存在 - 创建新的)。但我所期望的 - 方法 processOne(..) 正在新事务中运行 - 因此，如果在这个事务中一切正常，则应该提交事务。但如果发生错误，则整个过程将回滚。不仅来自当前交易。怎么了？

Answer 1

当从同一个类调用 processOne 方法时，仅当直接从其他类调用时，它才不会创建新事务。

另请参阅this question以及我的回答。

来自spring reference manual :

In proxy mode (which is the default), only external method calls coming in through the proxy are intercepted. This means that self-invocation, in effect, a method within the target object calling another method of the target object, will not lead to an actual transaction at runtime even if the invoked method is marked with @Transactional. Also, the proxy must be fully initialized to provide the expected behaviour so you should not rely on this feature in your initialization code, i.e. @PostConstruct.