java中四种操作xml方式简单例子

 java代码

import java.io.*;
import java.util.*;
import org.w3c.dom.*;
import org.xml.sax.SAXException;
import javax.xml.parsers.*;
public class DOMSimple {
       public static void main(String[] args) {
              long lasting = System.currentTimeMillis();
              DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
              try {
                     File f = new File("src/NewFile.xml");
                     DocumentBuilder builder = factory.newDocumentBuilder();
                     Document doc = builder.parse(f);
                     NodeList nl = doc.getElementsByTagName("value");
                     for(int i = 0; i < nl.getLength(); i ++) {
                            System.out.println("no ->" + doc.getElementsByTagName
("no").item(i).getFirstChild().getNodeValue());
                            System.out.println("addr ->" + doc.getElementsByTagName
("addr").item(i).getFirstChild().getNodeValue());
                     }
              } catch (ParserConfigurationException e) {
                     e.printStackTrace();
              } catch (SAXException e) {
                     e.printStackTrace();
              } catch (IOException e) {
                     e.printStackTrace();
              }
       }
}

xml代码

<?xml version="1.0" encoding="UTF-8"?>
<result>
       <value>
              <no>A1234</no>
              <addr>Aaddr</addr>
       </value>
       <value>
              <no>B1234</no>
              <addr>Baddr</addr>
       </value>
</result>