针对User实体中的姓名按拼音排序

import java.text.Collator;
import java.util.Comparator;
import java.util.Locale;
import java.util.Set;
import java.util.TreeSet;

public class User implements Comparable<User>{
	private String name;
	private int age;

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

	public String getName() {
		return this.name;
	}

	public int getAge() {
		return this.age;
	}
	@Override
	public int compareTo(User other) {
		if (other == null) {
			return 1;
		}
		Comparator comparator = Collator.getInstance(Locale.CHINA);
		return comparator.compare(name, other.getName());
	}
}

接下来测试下：

public static void main(String[] args) {
	User user01 = new User("阿三", 18);
	User user02 = new User("段蕾", 19);
	User user03 = new User("长江", 11);
	User user04 = new User("版主", 25);

	Set<User> set = new TreeSet<User>();

	set.add(user01);
	set.add(user02);
	set.add(user03);
	set.add(user04);
	for (User user : set) {
		System.out.print(user.getName() + "---");
	}
}

阿三---版主---长江---段蕾---