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());