springboot+mongodb 实现按日期分组分页查询功能

WalletDetailsResp walletDetailsResp = new WalletDetailsResp();List<WalletDetailsResp.WalletDetail> list = new ArrayList<>();WalletDetailsResp.PageInfoBean pageInfoBean = new WalletDetailsResp.PageInfoBean();List<Integer> types = new ArrayList<>();types.add(InnerCashType.FINISHER_ADD_CUTMONEY.getCode());types.add(InnerCashType.FINISHER_ADD_REWARD.getCode());types.add(InnerCashType.FINISHER_SUB_WITHDRAW.getCode());types.add(InnerCashType.FINISHER_ADD_WITHDRAW.getCode());Criteria eatCriteria = Criteria.where("_change_type").in(types).and("_downstream_user_id").is(userId);Sort.Order orders = new Sort.Order(Sort.Direction.DESC, "changeDate");Aggregation eatAggregation = Aggregation.newAggregation(    Aggregation.match(eatCriteria),    Aggregation.project("_change_money","_change_type").andExpression("substr(_change_time,0,10)").as("changeDate"),    Aggregation.group("changeDate","_change_type").sum("_change_money").as("changeMoney"),    Aggregation.sort(new Sort(orders)),    Aggregation.skip(pageIndex > 1 ? (pageIndex - 1) * pageSize : 0L),    Aggregation.limit(pageSize));AggregationResults<BasicDBObject> eatOutputType = mongoTemplate.aggregate(eatAggregation, "inner_cash_change", BasicDBObject.class);for (DBObject obj : eatOutputType) {  WalletDetailsResp.WalletDetail walletDetail = new WalletDetailsResp.WalletDetail();  walletDetail.setChangeType(Integer.parseInt(obj.get("_change_type").toString()));  walletDetail.setChangeMoney(new BigDecimal(obj.get("changeMoney").toString()).divide(QRType.YUAN_TO_FEN));  walletDetail.setChangeDate(obj.get("changeDate").toString());  list.add(walletDetail);}walletDetailsResp.setWalletDetails(list);pageInfoBean.setPageIndex(pageIndex);pageInfoBean.setPageSize(pageSize);pageInfoBean.setRecordTotal(eatOutputType.getMappedResults().size());walletDetailsResp.setPageInfo(pageInfoBean);