Jpa之Like和In查询的使用

落日映苍穹つ 2022-10-16 15:21 605阅读 0赞

Pageable pageable = PageRequest.of(request.getPage(), request.getPageSize(),
                    Sort.by(Sort.Direction.DESC, "id"));
            Page<UserAuthMusic> userAuthMusicPage = userAuthMusicRepo.findAll(
                    new Specification() {
                        @Override
                        public Predicate toPredicate(Root root, CriteriaQuery query, CriteriaBuilder cb) {
                            List<Predicate> pList = new ArrayList<Predicate>();
                            Predicate[] ps = new Predicate[pList.size()];
                            //标题
                            if (request.getTitle() != null && !"".equals(request.getTitle())) {
                                pListOr.add(cb.like(root.get("title").as(String.class), "%" + request.getTitle() + "%"));
                            }
                            //用户昵称
                            if (request.getNickName() != null && !"".equals(request.getNickName())) {
                                CriteriaBuilder.In<Integer> inGetUidByNickName = cb.in(root.get("uid"));
                                List<User> userList = userRepo.findAllByNickNameLike("%" + request.getNickName() + "%");
                                if (userList != null && userList.size() > 0) {
                                    for (User user : userList) {
                                        if (user != null) {
                                            inGetUidByNickName.value(user.getId());
                                        }
                                    }
                                    pList.add(inGetUidByNickName);
                                } else {
                                    pList.add(cb.equal(root.get("uid").as(String.class), 0));
                                }
                            }
                            //开始日期
                            if (request.getCreateBeginTime() != null && !"".equals(request.getCreateBeginTime())) {
                                pList.add(cb.greaterThanOrEqualTo(root.get("createTime").as(String.class), request.getCreateBeginTime()));
                            }
                            //结束日期
                            if (request.getCreateEndTime() != null && !"".equals(request.getCreateEndTime())) {
                                pList.add(cb.lessThanOrEqualTo(root.get("createTime").as(String.class), request.getCreateEndTime()));
                            }
                            query.where(pList.toArray(ps));
                            return null;
                        }
                    }, pageable);