java¶Áдxml

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    Element user=null;
    Element username=null,password=null;
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//    ¶¨Ò幤³§£¬Ê¹Ó¦ÓóÌÐòÄܹ»´Ó XML Îĵµ»ñÈ¡Éú³É DOM ¶ÔÏóÊ÷µÄ½âÎöÆ÷¡£
     DocumentBuilderFactory dbf=null;
     //¶¨Òå API£¬ ʹÆä´Ó XML Îĵµ»ñÈ¡ DOM ÎĵµÊµÀý¡£Ê¹ÓôËÀ࣬ӦÓóÌÐòÔ±¿ÉÒÔ´Ó XML »ñÈ¡Ò»¸ö Document
     DocumentBuilder db=null;
     //ʵÀý¹¤³§
     dbf = DocumentBuilderFactory.newInstance();
     //ʵÀýdocumentBuilder¶ÔÏó
     db = dbf.newDocumentBuilder();
     //ʵÀýXmlDocument±äÁ¿
     doc = new XmlDocument();
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    username="helloxml";
    password="pass";
ʵÀýÔªËرäÁ¿
user = doc.createElement("UserInfomation");
//ʵÀýelement±äÁ¿
      username = doc.createElement("UserName");
      username.appendChild(doc.createTextNode(username1));
      user.appendChild(username);
      ¡£¡£¡£¡£¡£
//ÔÙÓÃXmlDocument¶ÔÏódoc½«¸ùÔªËص½xmlÎĵµ
 doc.appendChild(user);
×îºóͨ¹ýwrite·½·¨½«Æäдµ½Ö¸¶¨µÄÎļþÖÐ
if (path == null || path.equals("")) {
   path = "E:/user.xml";
  }
    try
    {
   //½«Êä³ö·¾¶Í¨¹ýOutputStreamWriter
      OutputStreamWriter  out = new OutputStreamWriter(
      new BufferedOutputStream(new FileOutputStream(path)), "UTF-8");
      //ÀûÓÃXmlDocumentµÄwrite·½·¨Ð´³öxmlÎļþ
      doc.write(out, "UTF-8");
      out.close();