dom解析

    DocumentBuilderFactory  factory=DocumentBuilderFactory.newInstance();//得到解析工厂 
      
      DocumentBuilder newDocumentBuilder = factory.newDocumentBuilder();//文档解析器
      Document parse = newDocumentBuilder.parse("stus.xml");
      
      NodeList elementsByTagName = parse.getElementsByTagName("stus");
        Element e= (Element)elementsByTagName.item(0);
          System.out.println(e.getElementsByTagName("age").item(0).getFirstChild().getTextContent());
      
        
          
          DOMReader reader=new DOMReader();
          
          org.dom4j.Document read = reader.read(parse);
          org.dom4j.Element rootElement = read.getRootElement();
          List elements = rootElement.elements();
          
          Iterator<org.dom4j.Element> childs = elements.iterator();
          
          while(childs.hasNext()){
              
              org.dom4j.Element child = childs.next();
              System.out.println(child.getText());
               if(child.getName().equals("age")){
                     System.out.println(child.getText());
                      System.out.println("id:"+child.attributeValue("id"));
                       
                      List<org.dom4j.Element> elements2 = child.elements("s");
                      System.out.println(elements2.get(0).getText());
                      
               }
          }
          
}