1.设置集合中全部元素的某一个属性的值
Integer status = NoticeReadStatusEnum.READED.getCode();
List<NoticeSendRecord> collect = noticeSendRecordList.stream().map(record -> {
record.setStatus(status);
return record;
}).collect(Collectors.toList());
原文：https://www.cnblogs.com/tubashu/p/14949677.html