ArrayList排序

desc降序

private void descSort(final String order,String dir){
        //desc
        Collections.sort(arrayList, new Comparator<HashMap<String,Object>>(){

            @Override
            public int compare(HashMap<String, Object> arg0,HashMap<String, Object> arg1) {
                // TODO Auto-generated method stub
                return ((String) arg1.get("name")).compareTo((String) arg0.get("name"));
            }
        });
}

asc升序

private void ascSort(final String order,String dir){
       //asc
       Collections.sort(arrayList, new Comparator<HashMap<String,Object>>(){

           @Override
           public int compare(HashMap<String, Object> arg0,HashMap<String, Object> arg1) {
               // TODO Auto-generated method stub
               return ((String) arg0.get("name")).compareTo((String) arg1.get("name"));
           }
       });
}