java中对List<Map<String,Object>>中的中文汉字排序
import java.text.Collator; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.List; import java.util.Locale; import java.util.Map; import org.apache.commons.collections.MapUtils; public class TestListMap { public static void main(String[] args) { List<Map<String, Object>> list=new ArrayList<Map<String,Object>>(); Map<String, Object> map=new HashMap<String, Object>(); map.put("name", "中国"); Map<String, Object> map1=new HashMap<String, Object>(); map1.put("name", "北京"); Map<String, Object> map2=new HashMap<String, Object>(); map2.put("name", "首都"); Map<String, Object> map3=new HashMap<String, Object>(); map3.put("name", "new york"); list.add(map); list.add(map1); list.add(map2); list.add(map3); listSort(list); System.out.println(list); } public static void listSort(List<Map<String, Object>> resultList) { Collections.sort(resultList, new Comparator<Map<String, Object>>() { public int compare(Map<String, Object> o1, Map<String, Object> o2) { String name1=MapUtils.getString(o1, "name"); String name2=MapUtils.getString(o2, "name"); Collator instance = Collator.getInstance(Locale.CHINA); return instance.compare(name1, name2); } }); } } |
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