代码优化 public static MapString CalculationResultDTO statisticsOverallAppraisalfinal ListComputeResultExportDTO computeResultExports return CollectionUtilsemptyIfNullcomputeResultExports

以下是代码的优化版本：

public static Map<String, CalculationResultDTO> statisticsOverallAppraisal(final List computeResultExports) { return computeResultExports.stream() .map(ExcelConvertUtil::overallAppraisalCompute) .collect(Collectors.groupingBy( CalculationResultDTO::getScoreItemId, LinkedHashMap::new, Collectors.reducing(new CalculationResultDTO(), (cal1, cal2) -> { BigDecimal calculationResultValue = cal1.getCalculationResultValue(); cal1.setCalculationResultValue(calculationResultValue.add(cal2.getCalculationResultValue())); return cal1; }) ));