多条记录更新，单条回滚

@Transactional(rollbackFor = Exception.class)

public boolean update() {

  try {

      // 操作A

      // 操作B

  } catch (Exception e) {

    log.error("事务失败", e);

    TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();

    //return Boolean.FALSE;

  }

  //return Boolean.TRUE;

}