Question

手动回滚事务：

 TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();

案例：

@Service("userService")
@Transactional  //事务的注解
public class UserServiceImpl implements UserService{
    @Autowired
    UserMapper userMapper;

    @Override
    public List<User> getAllUser() throws Exception {        
        try {
            List<User> list = userMapper.getAllUser();
            return list;
        } catch (Exception e) {
        //强制手动事务回滚
             TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
        }
        return null;
    }

}