es 报表聚合，分组，求和，排序，合计，分页等综合应用_es 求和-程序员宅基地

 一，最终实现：查询条件及查询结果如下图所示
需要实现：分组，求和，聚合后排序，总计，分页

二， 需求分析：关于分组维度
es数据主键为：日期（年月日）+采购组织+采购组+门店

统计维度：可根据是否选择门店，按日或按月统计可分为四种情况

日+采购组织+采购组；采购组织+采购组；日+采购组织+采购组+门店；月+采购组织+采购组+门店；

按正常es多条件分组求和处理方式很麻烦，可参考网上写法。可以转变思路，把每个维度拼接成一个字段，即新增四个字段，多条件分组统计转化为单条件分组统计，实现起来会简单的多。如下图所示：

 三，代码实现
关于聚合

难点在于聚合统计，及聚合统计后再合计

关于排序

聚合求和的字段排序与不需要聚合求和的字段区分开来，前者可以直接应用es特性直接排序，后者排序，对处理之后的数据lis排序，java特性排序对list排序

关于分页

es无法复杂聚合后排序，对处理之后的数据进行伪分页排序，并不是真正意义上的排序，可以减轻前端压力，对于后台是对所有的数据伪分页。

serviceImpl
 

  public Page<ResFoodOrderInspectionVO> queryPageByOrgGroupLocationCodes(ReqFoodOrderInspectionVO reqVO) {
        // 参数处理
        paramDeal(reqVO);
        Page<ResFoodOrderInspectionVO> page = new Page<>();
        page.setPageSize(reqVO.getSize());
        page.setPageNo(reqVO.getPage());
        page.setOrderBy(reqVO.getOrderBy());
 
        // 聚合查询
        List<ResFoodOrderInspectionVO> resList = esService.queryGroupByOrgGroupLocationCode(reqVO);
        if (CollectionUtils.isEmpty(resList)) {
            return new Page<>();
        }
        
        // 百分率处理
        percentDeal(resList);
        
        // 非聚合字段排序处理
        orderBy(resList, reqVO);
 
        page.setTotalNum(resList.size());
        page.setResult(pageHandle(resList, reqVO.getPage(), reqVO.getSize()));
        return page;
    }

es逻辑

  @Override
    public List<ResFoodOrderInspectionVO> queryGroupByOrgGroupLocationCode(ReqFoodOrderInspectionVO reqVO) {
        log.info("食用订单巡检表查询条件：{}", reqVO.toString());
        StopWatch stopwatch = new StopWatch();
        stopwatch.start();
        List<ResFoodOrderInspectionVO> resList = Lists.newArrayList();
        SearchRequest searchRequest = new SearchRequest(EsOperateTables.FOOD_ORDER_INSPECTION.getAlias());
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        searchSourceBuilder.fetchSource(RES_FBASEFOODORDERINSPEC_FIELDS, null);
        searchSourceBuilder.size(0);// 设置为0代表不需要取查询到的所有数据，只需要取聚合的相关的数据
        BoolQueryBuilder booleanQuery = QueryBuilders.boolQuery();
        // 组装查询条件
        buildBooleanQuery(booleanQuery, reqVO);
        searchSourceBuilder.query(QueryBuilders.constantScoreQuery(booleanQuery));
        // 分组，统计，排序
        FoodOrderInspectionConvertor.groupCountAgg(searchSourceBuilder, reqVO);
        searchRequest.source(searchSourceBuilder);
        SearchResponse searchResponse = null;
        try {
            searchResponse = restHighLevelClient.search(searchRequest, RequestOptions.DEFAULT);
            stopwatch.stop();
        } catch (IOException e) {
            log.error(ErrorMsgConstant.FOODORDERINSPECTION_QUERYES_ERROR, e);
            throw new OrderCenterException(ErrorMsgConstant.FOODORDERINSPECTION_QUERYES_ERROR);
        }
        if (Objects.isNull(searchResponse)) {
            return Collections.emptyList();
        }
 
        Terms terms = searchResponse.getAggregations().get(FoodOrderInspectionConstant.GROUPDIMENSION);
        if (Objects.isNull(terms)) {
            return Collections.emptyList();
        }
        // 包含门店，且按日统计时，需要判断总量，其他场景，总分组量实际不会大于10000，不需要判断
        if (CollectionUtils.isNotEmpty(reqVO.getLocationCodes()) && !reqVO.getGroupMonth() && searchResponse.getHits().getTotalHits() > FoodOrderInspectionConstant.GROUP_RETURN_SIZE) {
            throw new OrderCenterException(ErrorMsgConstant.GROUP_TOTALSIZE_TOOLONG);
        }
        // 组装数据
        for (Terms.Bucket entry : terms.getBuckets()) {
            resList.add(FoodOrderInspectionConvertor.toResVO(entry, reqVO));
        }
        // 取聚合统计后合计
        Map<String, Aggregation> totalMap = searchResponse.getAggregations().getAsMap();
        resList.forEach(v -> {
            v.setResFoodOrderInspectionTotalVO(FoodOrderInspectionConvertor.buildTotal(totalMap));
        });
        log.info("食用订单巡检报表查询耗时:{}", stopwatch.getTotalTimeMillis());
        return resList;
    }

 聚合求和及聚合合计字段处理

1.注意维度下数据量，如果大于10000条，多余的数据不会计入聚合统计，如下图说明

2.注意聚合求和和聚合合计的层级关系，聚合统计字段以子聚合关联，聚合合计字段与分组维度一个层级

 /**
     * 统计，排序
     * 分组size含义：需要返回分组后的个数；如按某维度分组，10个结果，size=2，只会返回两个结果。应该小于10000
     * 分组size测试：
     * 条件：全部100家门店，日期5月份，包含门店，按日维度统计
     * 结果：查询总量：19703 1，size>10000，程序异常；2，size=10000(查询时长大概30s)，实际只取前10000条数据聚合返回，导致数据不准
     * 处理：如果size>10000，抛业务异常，缩小范围
     *
     * @param searchSourceBuilder
     * @param reqVO
     */
    public static void groupCountAgg(SearchSourceBuilder searchSourceBuilder, ReqFoodOrderInspectionVO reqVO) {
        //对聚合结果的排序 true为正序 false为倒序
        Boolean sort = FoodOrderInspectionConstant.ASC.equals(reqVO.getSort()) ? true : false;
 
        //聚合场景
        TermsAggregationBuilder groupDimension = null;
        if (CollectionUtils.isNotEmpty(reqVO.getLocationCodes()) && reqVO.getGroupMonth()) {
            groupDimension = AggregationBuilders.terms(FoodOrderInspectionConstant.GROUPDIMENSION).field(convertToUnderScore(BaseFoodOrderInspectionVO::getMonthOrgGroupLocation)).size(FoodOrderInspectionConstant.GROUP_RETURN_SIZE);
        } else if (CollectionUtils.isEmpty(reqVO.getLocationCodes()) && !reqVO.getGroupMonth()) {
            groupDimension = AggregationBuilders.terms(FoodOrderInspectionConstant.GROUPDIMENSION).field(convertToUnderScore(BaseFoodOrderInspectionVO::getDayOrgGroup)).size(FoodOrderInspectionConstant.GROUP_RETURN_SIZE);
        } else if (CollectionUtils.isEmpty(reqVO.getLocationCodes()) && reqVO.getGroupMonth()) {
            groupDimension = AggregationBuilders.terms(FoodOrderInspectionConstant.GROUPDIMENSION).field(convertToUnderScore(BaseFoodOrderInspectionVO::getMonthOrgGroup)).size(FoodOrderInspectionConstant.GROUP_RETURN_SIZE);
        } else if (CollectionUtils.isNotEmpty(reqVO.getLocationCodes()) && !reqVO.getGroupMonth()) {
            groupDimension = AggregationBuilders.terms(FoodOrderInspectionConstant.GROUPDIMENSION).field(FoodOrderInspectionConstant._ID).size(FoodOrderInspectionConstant.GROUP_RETURN_SIZE);
        } else {
            return;
        }
 
        // 判断是否在聚合排序范围
        List<String> fileds = Arrays.stream(ReqFoodOrderInspectionOderByVO.class.getDeclaredFields()).map(field -> field.getName()).collect(Collectors.toList());
        if (fileds.contains(reqVO.getOrderBy())) {
            groupDimension.order(BucketOrder.aggregation(reqVO.getOrderBy(), sort));
        }
 
        // 分组维度内取第一个元素
        TopHitsAggregationBuilder topHits = null;
        if (CollectionUtils.isNotEmpty(reqVO.getLocationCodes()) && !reqVO.getGroupMonth()) {
            topHits = AggregationBuilders.topHits(FoodOrderInspectionConstant.TOP_HITS_ONE).size(1).fetchSource(RES_FBASEFOODORDERINSPEC_FIELDS, null);
        } else {
            topHits = AggregationBuilders.topHits(FoodOrderInspectionConstant.TOP_HITS_ONE).size(1).fetchSource(ORG_GROUP_LOCATION_FIELDS, null);
        }
 
        //聚合统计
        SumAggregationBuilder replenishAdviceQtySum = AggregationBuilders.sum(FoodOrderInspectionConstant.REPLENISHADVICEQTY).field(convertToUnderScore(BaseFoodOrderInspectionVO::getReplenishAdviceQty));
        SumAggregationBuilder actApproveProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.ACTAPPROVEPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getActApproveProductNum));
        SumAggregationBuilder actApproveQtySum = AggregationBuilders.sum(FoodOrderInspectionConstant.ACTAPPROVEQTY).field(convertToUnderScore(BaseFoodOrderInspectionVO::getActApproveQty));
        SumAggregationBuilder actReplenishProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.ACTREPLENISHPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getActReplenishProductNum));
        SumAggregationBuilder actReplenishAdviceQtySum = AggregationBuilders.sum(FoodOrderInspectionConstant.ACTREPLENISHADVICEQTY).field(convertToUnderScore(BaseFoodOrderInspectionVO::getActReplenishAdviceQty));
        SumAggregationBuilder addProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.ADDPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getAddProductNum));
        SumAggregationBuilder manualReplenishProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.MANUALREPLENISHPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getManualReplenishProductNum));
        SumAggregationBuilder aiReplenishProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.AIREPLENISHPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getAiReplenishProductNum));
        SumAggregationBuilder specialReplenishProductNumDqSum = AggregationBuilders.sum(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMDQ).field(convertToUnderScore(BaseFoodOrderInspectionVO::getSpecialReplenishProductNumDq));
        SumAggregationBuilder specialReplenishProductNumTgSum = AggregationBuilders.sum(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMTG).field(convertToUnderScore(BaseFoodOrderInspectionVO::getSpecialReplenishProductNumTg));
        SumAggregationBuilder specialReplenishProductNumYcSum = AggregationBuilders.sum(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMYC).field(convertToUnderScore(BaseFoodOrderInspectionVO::getSpecialReplenishProductNumYc));
        SumAggregationBuilder orderProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.ORDERPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getOrderProductNum));
        SumAggregationBuilder orderQtySum = AggregationBuilders.sum(FoodOrderInspectionConstant.ORDERQTY).field(convertToUnderScore(BaseFoodOrderInspectionVO::getOrderQty));
        SumAggregationBuilder adviceReplenishProductNumSum = AggregationBuilders.sum(FoodOrderInspectionConstant.ADVICEREPLENISHPRODUCTNUM).field(convertToUnderScore(BaseFoodOrderInspectionVO::getAdviceReplenishProductNum));
 
        // 聚合统计后再合计
        SumBucketPipelineAggregationBuilder replenishAdviceQtySumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.REPLENISHADVICEQTYTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.REPLENISHADVICEQTY);
        SumBucketPipelineAggregationBuilder approveProductNumSumBucketAct = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ACTAPPROVEPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ACTAPPROVEPRODUCTNUM);
        SumBucketPipelineAggregationBuilder actApproveQtySumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ACTAPPROVEQTYTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ACTAPPROVEQTY);
        SumBucketPipelineAggregationBuilder actReplenishProductNumSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ACTREPLENISHPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ACTREPLENISHPRODUCTNUM);
        SumBucketPipelineAggregationBuilder actReplenishAdviceQtySumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ACTREPLENISHADVICEQTYTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ACTREPLENISHADVICEQTY);
        SumBucketPipelineAggregationBuilder addProductNumSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ADDPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ADDPRODUCTNUM);
        SumBucketPipelineAggregationBuilder manualReplenishProductNumSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.MANUALREPLENISHPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.MANUALREPLENISHPRODUCTNUM);
        SumBucketPipelineAggregationBuilder aiReplenishProductNumSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.AIREPLENISHPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.AIREPLENISHPRODUCTNUM);
        SumBucketPipelineAggregationBuilder specialReplenishProductNumDqSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMDQTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMDQ);
        SumBucketPipelineAggregationBuilder specialReplenishProductNumTgSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMTGTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMTG);
        SumBucketPipelineAggregationBuilder specialReplenishProductNumYcSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMYCTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMYC);
        SumBucketPipelineAggregationBuilder orderProductNumSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ORDERPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ORDERPRODUCTNUM);
        SumBucketPipelineAggregationBuilder orderQtySumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ORDERQTYTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ORDERQTY);
        SumBucketPipelineAggregationBuilder adviceReplenishProductNumSumBucket = new SumBucketPipelineAggregationBuilder(FoodOrderInspectionConstant.ADVICEREPLENISHPRODUCTNUMTOTAL, FoodOrderInspectionConstant.GROUPDIMENSION + FoodOrderInspectionConstant.GROUPFLAG + FoodOrderInspectionConstant.ADVICEREPLENISHPRODUCTNUM);
 
        searchSourceBuilder.aggregation(groupDimension.subAggregation(topHits).subAggregation(replenishAdviceQtySum).subAggregation(actApproveProductNumSum)
                .subAggregation(actApproveQtySum).subAggregation(actReplenishProductNumSum).subAggregation(actReplenishAdviceQtySum).subAggregation(addProductNumSum)
                .subAggregation(manualReplenishProductNumSum).subAggregation(aiReplenishProductNumSum).subAggregation(specialReplenishProductNumDqSum).subAggregation(specialReplenishProductNumTgSum)
                .subAggregation(specialReplenishProductNumYcSum).subAggregation(orderProductNumSum).subAggregation(orderQtySum).subAggregation(adviceReplenishProductNumSum));
 
        // 添加合计聚合结果，与分组同一维度，不能加在上面subAggregation()中
        searchSourceBuilder.aggregation(replenishAdviceQtySumBucket).aggregation(approveProductNumSumBucketAct).aggregation(actApproveQtySumBucket).aggregation(actReplenishProductNumSumBucket)
                .aggregation(actReplenishAdviceQtySumBucket).aggregation(addProductNumSumBucket).aggregation(manualReplenishProductNumSumBucket).aggregation(aiReplenishProductNumSumBucket).aggregation(specialReplenishProductNumDqSumBucket)
                .aggregation(specialReplenishProductNumTgSumBucket).aggregation(specialReplenishProductNumYcSumBucket).aggregation(orderProductNumSumBucket).aggregation(orderQtySumBucket).aggregation(adviceReplenishProductNumSumBucket);
    }

 取聚合统计后合计数据

  /**
     * 取聚合统计后合计，返回double
     *
     * @param totalMap
     * @return
     */
    public static ResFoodOrderInspectionTotalVO buildTotal(Map<String, Aggregation> totalMap) {
        ResFoodOrderInspectionTotalVO vo = new ResFoodOrderInspectionTotalVO();
        vo.setReplenishAdviceQtyTotal(new BigDecimal(String.valueOf(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.REPLENISHADVICEQTYTOTAL)).value())).setScale(2, BigDecimal.ROUND_DOWN));
        vo.setActApproveProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ACTAPPROVEPRODUCTNUMTOTAL)).value()).intValue()));
        vo.setActApproveQtyTotal(new BigDecimal(String.valueOf(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ACTAPPROVEQTYTOTAL)).value())).setScale(2, BigDecimal.ROUND_DOWN));
        vo.setActReplenishProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ACTREPLENISHPRODUCTNUMTOTAL)).value()).intValue()));
        vo.setActReplenishAdviceQtyTotal(new BigDecimal(String.valueOf(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ACTREPLENISHADVICEQTYTOTAL)).value())).setScale(2, BigDecimal.ROUND_DOWN));
        vo.setAddProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ADDPRODUCTNUMTOTAL)).value()).intValue()));
        vo.setManualReplenishProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.MANUALREPLENISHPRODUCTNUMTOTAL)).value()).intValue()));
        vo.setAiReplenishProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.AIREPLENISHPRODUCTNUMTOTAL)).value()).intValue()));
        vo.setSpecialReplenishProductNumDqTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMDQTOTAL)).value()).intValue()));
        vo.setSpecialReplenishProductNumTgTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMTGTOTAL)).value()).intValue()));
        vo.setSpecialReplenishProductNumYcTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.SPECIALREPLENISHPRODUCTNUMYCTOTAL)).value()).intValue()));
        vo.setOrderProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ORDERPRODUCTNUMTOTAL)).value()).intValue()));
        vo.setOrderQtyTotal(new BigDecimal(String.valueOf(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ORDERQTYTOTAL)).value())).setScale(2, BigDecimal.ROUND_DOWN));
        vo.setAdviceReplenishProductNumTotal(Integer.valueOf(new Double(((ParsedSimpleValue) totalMap.get(FoodOrderInspectionConstant.ADVICEREPLENISHPRODUCTNUMTOTAL)).value()).intValue()));
        return vo;
    }

非聚合字段排序

  /**
     * 非聚合字段排序
     *
     * @param resList
     * @param reqVO
     */
    public void orderBy(List<ResFoodOrderInspectionVO> resList, ReqFoodOrderInspectionVO reqVO) {
        if (!Stream.of(APPLYDATE_ORG_GROUP_LOCATION_FIELDS).collect(Collectors.toList()).contains(reqVO.getOrderBy())) {
            return;
        }
        if (FoodOrderInspectionConstant.APPLYDATE.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getApplyDate));// 升序
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getApplyDate).reversed());//降序
            }
        }
        if (FoodOrderInspectionConstant.PURCHASEGROUPCODE.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getPurchaseGroupCode));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getPurchaseGroupCode).reversed());
            }
        }
        if (FoodOrderInspectionConstant.PURCHASEORGCODE.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getPurchaseOrgCode));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getPurchaseOrgCode).reversed());
            }
        }
        if (CollectionUtils.isNotEmpty(reqVO.getLocationCodes()) && FoodOrderInspectionConstant.LOCATIONCODE.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getLocationCode));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getLocationCode).reversed());
            }
        }
 
        // 百分比排序
        if (FoodOrderInspectionConstant.REPLENISHACCEPTPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getReplenishAcceptPercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getReplenishAcceptPercent).reversed());
            }
        }
        if (FoodOrderInspectionConstant.ADDREPLENISHPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getAddReplenishPercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getAddReplenishPercent).reversed());
            }
        }
        if (FoodOrderInspectionConstant.MANUALREPLENISHPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getManualReplenishPercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getManualReplenishPercent).reversed());
            }
        }
        if (FoodOrderInspectionConstant.AIREPLENISHPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getAiReplenishPercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getAiReplenishPercent).reversed());
            }
        }
        if (FoodOrderInspectionConstant.SPECIALREPLENISHPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getSpecialReplenishPercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getSpecialReplenishPercent).reversed());
            }
        }
        if (FoodOrderInspectionConstant.QTYUPDATEPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getQtyUpdatePercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getQtyUpdatePercent).reversed());
            }
        }
        if (FoodOrderInspectionConstant.PRODUCTUPDATEPERCENT.equals(reqVO.getOrderBy())) {
            if (FoodOrderInspectionConstant.ASC.equals(reqVO.getSort())) {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getProductUpdatePercent));
            } else {
                resList.sort(Comparator.comparing(ResFoodOrderInspectionVO::getProductUpdatePercent).reversed());
            }
        }
    }

 伪分页

  /**
     * 伪分页实现
     *
     * @param list
     * @param pageNum
     * @param pageSize
     * @param <T>
     * @return
     */
    public <T> List<T> pageHandle(List<T> list, int pageNum, int pageSize) {
        int fromIndex = (pageNum - 1) * pageSize;
        int toIndex = pageNum * pageSize;
        int maxIndex = list.size();
        fromIndex = fromIndex >= 0 ? fromIndex : 0;
        toIndex = toIndex <= maxIndex ? toIndex : maxIndex;
        if (fromIndex > toIndex) {
            fromIndex = 1;
        }
        return list.subList(fromIndex, toIndex);
    }

 
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本文链接：https://blog.csdn.net/WXF_Sir/article/details/115611829

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