Java读取xml

Java读取xml

1. import java.io.*;   
2. import org.w3c.dom.*;   
3. import org.xml.sax.SAXException;   
4. import javax.xml.parsers.*;   
5. public class Xml {   
6.     public static void main(String[] args) {   
7.         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();   
8.         try {   
9.             DocumentBuilder builder = factory.newDocumentBuilder();   
10.             Document doc = builder.parse(new File("E:\\work\\test\\xml1.xml"));   
11.             NodeList nl = doc.getElementsByTagName("book");   
12.             for (int i = 0; i < nl.getLength(); i++) {   
13.                 System.out.println(nl.item(i).getAttributes().item(0));   
14.                 System.out.println(doc.getElementsByTagName("title").item(i)   
15.                         .getFirstChild().getNodeValue());   
16.                 System.out.println(doc.getElementsByTagName("title").item(i)   
17.                         .getAttributes().item(0));   
18.                 System.out.println(doc.getElementsByTagName("author").item(i)   
19.                         .getFirstChild().getNodeValue());   
20.                 System.out.println(doc.getElementsByTagName("year").item(i)   
21.                         .getFirstChild().getNodeValue());   
22.                 System.out.println(doc.getElementsByTagName("price").item(i)   
23.                         .getFirstChild().getNodeValue());   
24.                 System.out.println();   
25.             }   
26.         } catch (ParserConfigurationException e) {   
27.             e.printStackTrace();   
28.         } catch (SAXException e) {   
29.             e.printStackTrace();   
30.         } catch (IOException e) {   
31.             e.printStackTrace();   
32.         }   
33.     }   
34. }   

 xml:

1. <bookstore>  
2. <book category="COOKING">  
3.   <title lang="en">Everyday Italian</title>  
4.   <author>Giada De Laurentiis</author>  
5.   <year>2005</year>  
6.   <price>30.00</price>  
7. </book>  
8. <book category="CHILDREN">  
9.   <title lang="en">Harry Potter</title>  
10.   <author>J K. Rowling</author>  
11.   <year>2005</year>  
12.   <price>29.99</price>  
13. </book>  
14. <book category="WEB">  
15.   <title lang="en">Learning XML</title>  
16.   <author>Erik T. Ray</author>  
17.   <year>2003</year>  
18.   <price>39.95</price>  
19. </book>  
20. </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