使用DOM4J创建和解析XML文件的简单示例

  public static void generatorDocument(){
  Document document=DocumentHelper.createDocument();
  Element root=document.addElement("root");
  root.addComment("this is a dom");
  document.setRootElement(root);
  Element elt1=root.addElement("root");
  elt1.addAttribute("title","yuan");
  elt1.addAttribute("author","MrZH");
  elt1.setText("china");
  elt1.setText("USA");
  Element elt2=elt1.addElement("elt2");
  elt2.addAttribute("title","elt2");
  elt2.addAttribute("author", "MissL");
  Element elt3=elt2.addElement("elt3");
  elt3.setText("java dom4j");
//  document.addDocType("catalog",null,"file://c://catalog.dtd");
      try {
       /*格式化*/
     OutputFormat format=OutputFormat.createPrettyPrint();
        format.setEncoding("GB2312");
     XMLWriter writer=new XMLWriter(new FileWriter("student.xml"),format);
     writer.write(document);//输出到控制台
    try {
     writer.close();
} catch (Exception e) {
e.printStackTrace();
}
      } catch (IOException e) {
e.printStackTrace();
}