xml..Doc

 1输出所有的xml元素

  DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
  DocumentBuilder dombuilder = documentBuilderFactory .newDocumentBuilder();

  String path = "xmldemo/books.xml";
  File file = new File(path);
  Document document=parse(file);

 List<String> list =document.getChildNodes;

  System.out.println("XML元素名称");
  System.out.println(list);

...................................

node.getNodeName()    //获取名称

getTextContent()        //获取内容