List> 中文字段排序详解编程语言

循环遍历按其中某个中文字段排序

/**  
 * 中文排序  
 * @author blog.ytso.com  
 *  
 */   
public class MapComparator implements Comparator<Map<String, Object>> {   
    @Override   
    public int compare(Map<String, Object> o1, Map<String, Object> o2) {   
        // TODO Auto-generated method stub   
        String b1 = (String)o1.get("NAME");   
        String b2 = (String)o2.get("NAME");   
 
        Collator cmp = Collator.getInstance(java.util.Locale.CHINA);     
        if (cmp.compare(b1, b2)>0){     
            return 1;     
        }else if (cmp.compare(b1, b2)<0){     
            return -1;     
        }     
        return 0;    
    }   
}     

import java.util.ArrayList;   
import java.util.Collections;   
import java.util.HashMap;   
import java.util.List;   
import java.util.Map;   
 
public class Test {   
 
    /**  
     * @param args  
     */   
    public static void main(String[] args) {   
        // TODO Auto-generated method stub   
        List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();   
        Map<String, Object> map1 = new HashMap<String, Object>();   
        Map<String, Object> map2 = new HashMap<String, Object>();   
        Map<String, Object> map3 = new HashMap<String, Object>();   
        Map<String, Object> map4 = new HashMap<String, Object>();   
        Map<String, Object> map5 = new HashMap<String, Object>();   
 
        map1.put("NAME", "朱元璋");   
        map2.put("NAME", "常遇春");   
        map3.put("NAME", "张无忌");   
        map4.put("NAME", "郭靖");   
        map5.put("NAME", "洪七公");   
 
        list.add(map1);list.add(map2);list.add(map3);list.add(map4);list.add(map5);   
 
        System.out.println("***排序前***");   
 
        for(Map<String, Object> map:list){   
            System.out.println(map.get("NAME"));   
        }   
 
        System.out.println("***排序后***");   
 
        Collections.sort(list, new MapComparator());   
 
        for(Map<String, Object> map:list){   
            System.out.println(map.get("NAME"));   
        }   
    }   
 
}   

结果：

***排序前***   
朱元璋   
常遇春   
张无忌   
郭靖   
洪七公   
***排序后***   
常遇春   
郭靖   
洪七公   
张无忌   
朱元璋  

作者：blog.ytso.com