List
转 List
Listlist = idsList.stream().map(Integer::parseInt).collect(Collectors.toList());
List
转 List
Listlist = strList.stream().map(String::valueOf).collect(Collectors.toList());
List
ListafterList = BeanUtil.copyToList(beforeList, Object.class);
List
指定属性排序 t1 compareTo b2 比较切换排序顺序
Collections.sort(
list,
Comparator.comparing(Object::get属性, (t1, t2) -> t1.compareTo(t2))
);



