Java中多准则字段的动态排序

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class DynamicSortingExample {
    public static void main(String[] args) {
        // 创建一个包含多个对象的列表
        List<Person> personList = new ArrayList<>();
        personList.add(new Person("Alice", 25, 170));
        personList.add(new Person("Bob", 30, 165));
        personList.add(new Person("Charlie", 20, 180));

        // 创建一个Comparator对象，定义排序规则
        Comparator<Person> comparator = Comparator
                .comparing(Person::getName)
                .thenComparing(Person::getAge)
                .thenComparing(Person::getHeight);

        // 使用Collections.sort方法进行排序
        Collections.sort(personList, comparator);

        // 打印排序结果
        for (Person person : personList) {
            System.out.println(person);
        }
    }
}

class Person {
    private String name;
    private int age;
    private int height;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public int getHeight() {
        return height;
    }

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", height=" + height +
                '}';
    }
}