document parse xml demo：

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Class file：

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

public class Util {

    public static String getXmlValue(String path, String param){
       SAXReader saxReader = null;
       Document doc = null;
       try {
           File f = new File(path);
           saxReader = new SAXReader();
           doc = saxReader.read(f);
           List<Element> list = doc.selectNodes("//param//add");

           for (Element add: list) {
               System.out.println(add.attribute("name").getStringValue());

               System.out.println(add.attribute("value").getStringValue());

               System.out.println(add.getText());
           }

       } catch (Exception e) {
       }
       return null;
   }

}