在Java中，如何按一个属性升序，然后按另一个属性降序对对象列表进行排序

我想对按一个属性升序，然后按另一个属性降序的对象列表进行排序.

例如，假设以下列表为(age, name):

(25, Alice), (25, Bob), (30, Charlie), (25, David), (30, Eve)

我试着按年龄升序，然后按名字降序，如下所示:

(25, David), (25, Bob), (25, Alice), (30, Eve), (30, Charlie)

我试着使用Stream.sorted和Comparator来实现这一点，但我不确定如何在不反转前面的比较器的情况下反转Comparator.thenComparing.

看一下这个例子:

import java.util.Comparator;
import java.util.List;

public class Dummy {

  private static class Person {

    private final int age;
    private final String name;

    public Person(int age, String name) {
      this.age = age;
      this.name = name;
    }

    public int getAge() { return age; }

    public String getName() { return name; }

    @Override
    public String toString() { return "(" + age + ", " + name + ")"; }
  }

  public static void main(String[] args) {
    var people = List.of(
      new Person(25, "Alice"),
      new Person(25, "Bob"),
      new Person(30, "Charlie"),
      new Person(25, "David"),
      new Person(30, "Eve")
    );

    System.out.println(people);

    var sortedPeople = people
      .stream()
      .sorted(
        Comparator
          .comparing(Person::getAge)
          .thenComparing(Person::getName)
          .reversed()
      )
      .toList();

    System.out.println(sortedPeople);
  }
}

如您所见，我对比较器应用了reversed，但得到的比较结果为

age by descending, then name by descending:个

(30, Eve), (30, Charlie), (25, David), (25, Bob), (25, Alice)

但正如我上面所说的，我试图实现的比较是

age by ascending, then name by descending:个

(25, David), (25, Bob), (25, Alice), (30, Eve), (30, Charlie)