dom4j 解析 xml 文件（二）

//读book  属性 show 将属性为 yes 的更改为 no

 

 public void read(String url) throws DocumentException, IOException {

        SAXReader reader = new SAXReader();
        Document document = reader.read(url);
  
        List list  = document.selectNodes("/books/book/@show");
        Iterator iter = list.iterator();
        while (iter.hasNext()) {
             Attribute element = (Attribute) iter.next();
             if(element.getValue().equals("yes")){
                element.setValue("no");
            }  
         }

       OutputFormat format = OutputFormat.createPrettyPrint();

       //设置输出支持中文
       format.setEncoding("gbk");
        XMLWriter writer = new XMLWriter(new FileWriter("aa.xml"),format);
        writer.write(document);
        writer.close();
 }