User user = userRepository.findUserByUsername(cookie.getValue());
        UserAttractions userAttractions = userAttractionsRepository.findUserAttractionsByAttractionsAndUser(attractions, user);
        //存在值就是取消预约.不存在值就是预约
        if (userAttractions != null) {
            userAttractionsRepository.delete(userAttractions);
        } else {
            UserAttractions newUserAttractions = new UserAttractions();
            newUserAttractions.setId(IdGenerator.id());
            newUserAttractions.setCreateDate(new Date());
            newUserAttractions.setUser(user);
            newUserAttractions.setAttractions(attractions);
            userAttractionsRepository.saveAndFlush(newUserAttractions);
        }
        return ResultGenerator.genSuccessResult();

            //景点name模糊查询
            if (!StringUtils.isEmpty(searchName)) {
                predicates.add((cb.like(root.get("name"), "%" + searchName + "%")));
            }
            query.where(predicates.toArray(new Predicate[]{}));
            query.orderBy(cb.desc(root.get("createDate")));
            return null;
        }, pageable);
        return attractionsPage;
    }

    public Attractions findAttractionsById(String id) {
        return attractionsRepository.findById(id).orElseThrow(() -> new ServiceException("景点id错误!"));
    }


    public List getReserveHotelByUser(HttpServletRequest request) {
        Cookie cookie = CookieUitl.get(request, "username");
        if (cookie == null) {
            throw new ServiceException("未能获得正确的用户名");
        }
        User user = userRepository.findUserByUsername(cookie.getValue());
        return userHotelRepository.findUserHotelsByUser(user);

    @Autowired
    private UserRepository userRepository;

    @Autowired
    private UserRouteRepository userRouteRepository;

    public Page TravelRouteListUI(String searchName, Pageable pageable) {
        //查询启用的旅游路线列表
        Page travelRoutePage = travelRouteRepository.findAll((root, query, cb) -> {
            List predicates = new ArrayList<>();
            //status状态,查询状态为0,启动的路线
            predicates.add((cb.equal(root.get("status"), 0)));
            //旅游路线name模糊查询
            if (!StringUtils.isEmpty(searchName)) {
                predicates.add((cb.like(root.get("name"), "%" + searchName + "%")));
            }
            query.where(predicates.toArray(new Predicate[]{}));
            query.orderBy(cb.desc(root.get("createDate")));
            return null;
        }, pageable);
        return travelRoutePage;
    }