java读取xml

import java.io.*;import org.w3c.dom.*;import org.xml.sax.SAXException;import javax.xml.parsers.*;public class Xml {public static void main(String[] args) {DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();try {DocumentBuilder builder = factory.newDocumentBuilder();Document doc = builder.parse(new File("E://work//test//xml1.xml"));NodeList nl = doc.getElementsByTagName("book");for (int i = 0; i < nl.getLength(); i++) {System.out.println(nl.item(i).getAttributes().item(0));System.out.println(doc.getElementsByTagName("title").item(i).getFirstChild().getNodeValue());System.out.println(doc.getElementsByTagName("title").item(i).getAttributes().item(0));System.out.println(doc.getElementsByTagName("author").item(i).getFirstChild().getNodeValue());System.out.println(doc.getElementsByTagName("year").item(i).getFirstChild().getNodeValue());System.out.println(doc.getElementsByTagName("price").item(i).getFirstChild().getNodeValue());System.out.println();}} catch (ParserConfigurationException e) {e.printStackTrace();} catch (SAXException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}}} 

 xml:

<bookstore><book category="COOKING"> <title lang="en">Everyday Italian</title> <author>Giada De Laurentiis</author> <year>2005</year> <price>30.00</price></book><book category="CHILDREN"> <title lang="en">Harry Potter</title> <author>J K. Rowling</author> <year>2005</year> <price>29.99</price></book><book category="WEB"> <title lang="en">Learning XML</title> <author>Erik T. Ray</author> <year>2003</year> <price>39.95</price></book></bookstore> 

Result:

category="COOKING"
Everyday Italian
lang="en"
Giada De Laurentiis
2005
30.00

category="CHILDREN"
Harry Potter
lang="en"
J K. Rowling
2005
29.99

category="WEB"
Learning XML
lang="en"
Erik T. Ray
2003
39.95