Question

如果ObservableCollection<CanvasLine>引发了Foo，则以下服务无法回滚保留IllegalStateException对象，尽管我已将MyServiceImpl标记为@Transactional(rollbackFor = IllegalStateException.class)。我还尝试将upload方法标记为@Transactional(rollbackFor = IllegalStateException.class)，问题仍然存在，如果发生IllegalStateException，我的数据库状态将会不一致：

@Service
@Transactional
public class MyServiceImpl implements IMyService{
    @Autowired
    private IFooService fooService;
    @Autowired
    private IBarService barService;

    @Override
    @Transactional(rollbackFor = IllegalStateException.class, propagation = Propagation.REQUIRED)
    public void upload(Foo foo, Bar bar) throws IllegalStateException{
       try{
        fooService.addFoo(foo);//foo object is persisted in the DB whether the upload call would succeed or fail (i.e. throws an IllegalStateException)
        if(!check(bar))
            throw new IllegalStateException("The object bar is not valid");
        barService.addBar();
      } catch(Exception e){
           e.printStackTrace();
      }
    }

    //This method simply validates the input Bar object
    private boolean check(Bar bar){
        //source code omitted       
    }   
}

@Service
@Transactional
public class FooServiceImpl implements IFooService{
    @Autowired
    private IFooDao fooDao; 

    @Override
    @Transactional(propagation = Propagation.REQUIRED) 
    public void addFoo(final Foo foo){
        fooDao.addFoo(foo);
    }   
}

@Service
@Transactional
public class BarServiceImpl implements IBarService{
    @Autowired
    private IBarDao barDao;

    @Override
    @Transactional(propagation = Propagation.REQUIRED) 
    public void addBar(final Bar bar){
        barDao.addBar(bar);
    }
}

public class Foo implements Serializable{
    private int id;
    //source code omitted
}

public class Bar implements Serializable{
    private int id;
    private Foo foo;
    //source code omitted
}

我的DataSource配置：

@Bean(name="dataSource")
public ComboPooledDataSource getDataSource() throws PropertyVetoException{
    ComboPooledDataSource dataSource = new ComboPooledDataSource();
    dataSource.setDriverClass(env.getProperty("db.driverClass"));
    dataSource.setJdbcUrl(env.getProperty("db.jdbcUrl"));
    dataSource.setUser(env.getProperty("db.user"));
    dataSource.setPassword(env.getProperty("db.password"));
    dataSource.setMaxPoolSize(50);
    dataSource.setMinPoolSize(5);
    dataSource.setMaxConnectionAge(1800);
    dataSource.setMaxIdleTime(1800);        
    dataSource.setAutoCommitOnClose(false);
    dataSource.setInitialPoolSize(5);       
    return dataSource;
}

我该如何解决这个问题？

更新：更新了源代码并添加了try/catch子句。

Answer 1

看起来addFoo在自己的转换中执行。

您可以使用

对其进行注释

@Transactional(propagation = Propagation.REQUIRED)

因此在这种情况下它将使用相同的事务，并且如果在没有@Transactional注释的情况下从其他地方调用，则创建一个新事务。

Answer 2

我花了一段时间才发现回滚失败的原因。感谢ben75的答案。实际上，我提供的源代码并不完整。我忘了在try/catch方法中添加upload子句。尽管引发了IllegalStateException，但这确实阻止了事务被回滚。除此之外，我不需要指定传播级别，因为它默认为REQUIRED。

无法在已检查的异常上回滚事务

2 个答案: