Java8 list数据提取

List oIds = attrType.stream().
map(s->Long.parseLong(s.getId())).collect(Collectors.toList());

List consumptions = userInfo.stream().

filter(k->k.getName().equals("张三")).
map(UserInfo::getConsumptions()).
findFirst().
orElse(null);

List uIds =
userInfo.stream().map(UserInfo::getId).distinct().collect(Collectors.toList())

List timeList = corrosionVOList.stream().

            map(CorrosionVO::getTime).
            sorted(String::compareTo).
            distinct().
            collect(Collectors.toList());