JAVA对DOM的一些解析、修改、新增操作

今天项目有需要对xml进行一些特定的操作，于是写了个小程序

/*
* param d: our project's color file
* param s: the skin package's color file
* result: the 'd' color will be replaced
*/
public void changeColor(String d, String s)
{
　　//eg:
   //String d = "E:/workspace35/Lianluosms/color.xml";
   //String s = "E:/workspace35/QiQiuMa/color.xml";
   DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
   try
   {
   　　Map<String, String> map_same = new HashMap<String, String>();
   　　DocumentBuilder db = dbf.newDocumentBuilder();
   　　Document doc_default = db.parse(d);
 　　  Element root_default = doc_default.getDocumentElement();
18　　    NodeList nl_default = root_default.getElementsByTagName("color");
　　   Document doc_skin = db.parse(s);
 　　  Element root_skin = doc_skin.getDocumentElement();
  　　 NodeList nl_skin = root_skin.getElementsByTagName("color");
   　　for(int i = 0; i < nl_skin.getLength(); i++)
      {
          Element ed = (Element)nl_skin.item(i);
          map_same.put(ed.getAttribute("name"), ed.getFirstChild().getNodeValue());
      }
      for(int i = 0; i < nl_default.getLength(); i++)
      {
          Element ed = (Element)nl_default.item(i);
          String key = ed.getAttribute("name");
          if(map_same.containsKey(key))
          {
              ed.getFirstChild().setNodeValue(map_same.get(key));
              map_same.remove(key);
          }
      }
      Iterator<Entry<String, String>> iter = map_same.entrySet().iterator();
      while(iter.hasNext())
      {
          Map.Entry<String, String> entry = (Map.Entry<String, String>)iter.next();
          String key = entry.getKey();
          String value = entry.getValue();
          Element color = doc_default.createElement("color");
          Attr attr = doc_default.createAttribute("name");
          attr.setValue(key);
          color.setAttributeNode(attr);
          Text txtco = doc_default.createTextNode(value);
          color.appendChild(txtco);
          root_default.appendChild(color);
      }
      DOMSource source=new DOMSource(doc_default);
      StreamResult result = new StreamResult(new File(d));
           
   　 TransformerFactory tff = TransformerFactory.newInstance();
      Transformer tf = tff.newTransformer();
      tf.transform(source, result);
   }
   catch(Exception e)
   {
      e.printStackTrace();
   }
}