摘要: 1.对多个字段去重复 ArrayList<SupplierDeliveryCountNum> collect = numlist.stream() .collect(Collectors.collectingAndThen( Collectors.toCollection(() -> new Tre 阅读全文
posted @ 2021-04-27 08:40 岁月尔尔 阅读(424) 评论(0) 推荐(0) 编辑