1 package com.gcli.xml;
2
3 import java.io.IOException;
4
5 import javax.xml.parsers.DocumentBuilder;
6 import javax.xml.parsers.DocumentBuilderFactory;
7 import javax.xml.parsers.ParserConfigurationException;
8
9 import org.w3c.dom.Document;
10 import org.w3c.dom.Element;
11 import org.w3c.dom.NodeList;
12 import org.xml.sax.SAXException;
13
14 public class XMLDOMTest {
15
16 public static void main(String[] args) {
17 // (1)建立DocumentBuilderfactory ，用于取得DocumentBuilder
18 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
19 // (2)通过DocumentBuilderfactory取得DocumentBuilder
20 DocumentBuilder builder = null;
21 try {
22 builder = factory.newDocumentBuilder();
23 } catch (ParserConfigurationException e) {
24 e.printStackTrace();
25 }
26 // (3)定义Document接口对象，通过DocumenBuilder类进行DOM树转换操作
27 Document doc = null;
28 try {
29 doc = builder.parse("C:\\javatest\\bookstore.xml");
30 } catch (SAXException e) {
31 e.printStackTrace();
32 } catch (IOException e) {
33 e.printStackTrace();
34 }
35 // (4)查找book的节点
36 NodeList nl = doc.getElementsByTagName("book");
37 // （5）遍历book节点，并输出内容
38 for (int i = 0; i < nl.getLength(); i++) {
39 Element element = (Element) nl.item(i);
40 String category = element.getAttribute("category");
41 String title = element.getElementsByTagName("title").item(0)
42 .getFirstChild().getNodeValue();
43 String author = element.getElementsByTagName("author").item(0)
44 .getFirstChild().getNodeValue();
45 String year = element.getElementsByTagName("year").item(0)
46 .getFirstChild().getNodeValue();
47 String price = element.getElementsByTagName("price").item(0)
48 .getFirstChild().getNodeValue();
49 System.out.println("第" + (i + 1) + "本书,类别：" + category + ",名字："
50 + title + ",作者：" + author + ",出版时间：" + year + ",价格："
51 + price + "。");
52 }
53 }
54
55 }
1 <?xml version="1.0" encoding="ISO-8859-1" ?>
2 - <bookstore>
3 - <book category="cooking">
4 <title lang="en">Everyday Italian</title>
5 <author>Giada De Laurentiis</author>
6 <year>2005</year>
7 <price>30.00</price>
8 </book>
9 - <book category="children">
10 <title lang="en">Harry Potter</title>
11 <author>J K. Rowling</author>
12 <year>2005</year>
13 <price>29.99</price>
14 </book>
15 - <book category="web">
16 <title lang="en">XQuery Kick Start</title>
17 <author>James McGovern</author>
18 <author>Per Bothner</author>
19 <author>Kurt Cagle</author>
20 <author>James Linn</author>
21 <author>Vaidyanathan Nagarajan</author>
22 <year>2003</year>
23 <price>49.99</price>
24 </book>
25 - <book category="web" cover="paperback">
26 <title lang="en">Learning XML</title>
27 <author>Erik T. Ray</author>
28 <year>2003</year>
29 <price>39.95</price>
30 </book>
31 </bookstore>
