ListpeopleList = getBaseMapper().queryNeedToStrengthen(vo); //获取学习完成时间最高的前三数据 List collect = peopleList.stream().filter(item -> null != item.getStudyCompTime()).collect(Collectors.groupingBy(TrainEvaluateBo::getStudyCompTime)).entrySet().stream().sorted((s1, s2) -> -Double.compare(s1.getKey(), s2.getKey())).limit(3).map(v -> v.getKey()).collect(Collectors.toList()); //获取错误次数最低的前三数据 List collect1 = peopleList.stream().filter(item -> null != item.getNumberOfError()).collect(Collectors.groupingBy(TrainEvaluateBo::getNumberOfError)).entrySet().stream().sorted((s1, s2) -> Integer.compare(s1.getKey(),s1.getKey())).limit(3).map(v -> v.getKey()).collect(Collectors.toList()); //获取一次性正确率最高的前三数据 List collect2 = peopleList.stream().filter(item -> null != item.getOneTimeRate()).collect(Collectors.groupingBy(TrainEvaluateBo::getOneTimeRate)).entrySet().stream().sorted((s1, s2) -> -Double.compare(s1.getKey(), s2.getKey())).limit(3).map(v -> v.getKey()).collect(Collectors.toList());