條件分頁查詢

@Transactional(readOnly = true)@SuppressWarnings("unchecked")public Page<GroupDetails> findAllByPage(String uid, String title, LocalDateTime startTime, LocalDateTime endTime, Pageable pageable) {return repository.findAll((root, query, criteriaBuilder) -> {List<Predicate> predicateList = new ArrayList<>();predicateList.add(criteriaBuilder.equal(root.get("userPid"), uid));if (startTime != null || endTime != null) {predicateList.add(criteriaBuilder.between(root.get("createTime"), startTime, endTime));}if (title != null && !title.isEmpty()) {predicateList.add(criteriaBuilder.like(root.get("groupName"), "%" + title + "%"));}if (predicateList.size() > 0) {Predicate[] predicates = new Predicate[predicateList.size()];for (int i = 0; i < predicates.length; i++) {predicates[i] = predicateList.get(i);}query.where(predicates);}query.orderBy(criteriaBuilder.desc(root.get("createTime")));return query.getRestriction();}, pageable);}

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