List根据某个字段排序

            List newList = userList.stream().sorted(Comparator.comparing(FastVerifyUser::getCreationTime)).collect(Collectors.toList());
            verifyUser = newList.get(newList.size() - 1);

Collections.reverse(newList);//反转顺序

FastVerifyUser 根据该bean的 getCreationTime 创建时间属性排序