代码优化 public MapString BigDecimal getLevelSubtotalfinal ListScoreItemTableSourceVO scoreItems final int size = CollectionUtilssizescoreItems; return CollectionUtilsemptyIfNullscoreItems

public Map<String, BigDecimal> getLevelSubtotal(final List scoreItems) { return CollectionUtils.emptyIfNull(scoreItems) .stream() .flatMap(item -> item.getScoreList().stream()) .map(item -> convert(item, scoreItems.size())) .collect(Collectors.groupingBy(LevelSubtotalVO::getScoreItemId, Collectors.reducing(BigDecimal.ZERO, LevelSubtotalVO::getLevelSubtotalScore, BigDecimal::add))); }

private static LevelSubtotalVO convert(final ScoreItemValueVO scoreItemValue, final int size) { BigDecimal examineWeight = scoreItemValue.getExamineWeight(); BigDecimal assessScore = NumberUtils.createBigDecimal(String.valueOf(scoreItemValue.getAssessScore())); final BigDecimal levelSubtotalAssessScore = examineWeight.multiply(assessScore) .divide(BigDecimal.valueOf(size), 4, RoundingMode.HALF_UP); LevelSubtotalVO levelSubtotalVO = new LevelSubtotalVO(scoreItemValue.getId(), levelSubtotalAssessScore); return levelSubtotalVO;