摘要: Map<String, Long> map = list.stream().collect(Collectors.toMap(s -> (String)s.get("key"), s -> (String) s.get("value"))); Map<String, List<User>> map 阅读全文
posted @ 2022-12-03 21:53 可观可乐 阅读(1441) 评论(0) 推荐(1)