itehttp://www.cppcns.comratorKeys = object.keys();//得到所有title 
  SortedMap map = new TreeMap(); 
  while (iteratorKeys.hasNext()) { 
      String key KOmLbL= iteratorKeys.next().toString(); 
      String vlaue = object.optString(key); 
      map.put(key, vlaue); 
  } 
  itemData = new LinkedList(map.values());