Spring事务异常回滚，捕获异常不抛出就不会回滚

Spring管理事务时候，Try catch 处理异常有两种方法 

前提：数据库为InnoDB引擎

方法1：手动回滚

在catch语句里面 使用： TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();

@Transactional
public void saveRecordSet(TEntity entity){
        try {
             getDao().save(entity);
             int a =  1 /0;
             TransactionAspectSupport.currentTransactionStatus().createSavepoint();
        } catch (Exception e) {
            e.printStackTrace();
            TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
        }
        
    }

方法2：抛出继续由Spring处理回滚

使用： throw new RuntimeException();抛出异常 最终由Spring检查出异常做出回滚

 @Transactional
 public void saveRecordSet(TEntity entity){
        try {
             getDao().save(entity);
             int a =  1 /0;
             TransactionAspectSupport.currentTransactionStatus().createSavepoint();
        } catch (Exception e) {
            e.printStackTrace();
               throw new RuntimeException();  
        }
        
    }