java sort 对中文名称排序

对中文名称排序，首先定义Collator （实现了Comparator）

import java.text.Collator;
import java.util.*;

public class Sort {


    public static void main(String[] args) {

        Collator china = Collator.getInstance(Locale.CHINA);

        List<String> list = new ArrayList<>();
        list.add("道奇");
        list.add("安妮");
        list.add("彩云");
        list.add("暴风");

//        Collections.sort(list);

        Collections.sort(list, china);
        for (String integer : list) {
            System.out.println(integer);
        }

        List<Map<String, Object>> maps = new ArrayList<>();

        Map<String, Object> map = new HashMap<>();
        map.put("name", "安妮");
        map.put("age", 12);
        Map<String, Object> map1 = new HashMap<>();
        map1.put("name", "暴风");
        map1.put("age", 19);
        Map<String, Object> map2 = new HashMap<>();
        map2.put("name", "安溪");
        map2.put("age", 12);
        Map<String, Object> map3 = new HashMap<>();
        map3.put("name", "aya");
        map3.put("age", 12);

        maps.add(map);
        maps.add(map1);
        maps.add(map2);
        maps.add(map3);

        Collections.sort(maps, new Comparator<Map<String, Object>>() {
            @Override
            public int compare(Map<String, Object> o1, Map<String, Object> o2) {
//                return (Integer) o1.get("age") -(Integer)  o2.get("age");
                String name = (String) o1.get("name");
                String name2 = (String) o2.get("name");
                return china.compare(name, name2);
            }
        });

        for (Map<String, Object> mapts : maps) {
            System.out.println("---" + mapts.get("name"));
        }

    }
}

输出结果：

安妮
暴风
彩云
道奇
---aya
---安妮
---安溪
---暴风