排序：对userList进行排序，按照sort升序，再按照name倒序。
默认排序，加Comparator.reverseOrder()后翻转，即倒序。
userList.sort(Comparator.comparing(User::getSort).thenComparing(User::getName,Comparator.reverseOrder()));
@Data
@AllArgsConstructor
public static class User{
private Integer id;
private String name;
private Integer sort;
}
public static void main(String[] args) {
User aaa = new User(1,"aaa",2);
User bbb = new User(2,"bbb",1);
User ccc = new User(3,"ccc",2);
List<User> userList = Arrays.asList(aaa,bbb,ccc);
System.out.println(userList);
userList.sort(Comparator.comparing(User::getSort).thenComparing(User::getName,Comparator.reverseOrder()));
System.out.println(userList);
}