摘要: 某个字段值为字符串 List<User> userList = new ArrayList(); Map<String,String> collect = userList.stream().collect(Collectors.groupingBy( User::getRealname, Coll 阅读全文
posted @ 2023-02-13 16:55 来一杯可乐 阅读(2290) 评论(0) 推荐(0) 编辑