把XML文档中的每一本书封装到一个book对象，并把多个book对象放到一个list集合当中返回 

 1 package sax;
 2 
 3 import java.awt.print.Book;
 4 import java.io.IOException;
 5 import java.util.ArrayList;
 6 import java.util.List;
 7 
 8 import javax.xml.parsers.ParserConfigurationException;
 9 import javax.xml.parsers.SAXParser;
10 import javax.xml.parsers.SAXParserFactory;
11 
12 import org.xml.sax.Attributes;
13 import org.xml.sax.SAXException;
14 import org.xml.sax.XMLReader;
15 import org.xml.sax.helpers.DefaultHandler;
16 
17 public class Demo {
18 
19     public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException {
20         //1、创建解析工厂
21         SAXParserFactory factory=SAXParserFactory.newInstance();
22         //2、得到解析器
23         SAXParser sp=factory.newSAXParser();
24         //3、得到读取器
25         XMLReader reader=sp.getXMLReader();
26         //4、设置内容处理
27         BeanListHandler handle=new BeanListHandler();
28         reader.setContentHandler(handle);
29         //5、读取xml文档内容
30         reader.parse("src/sax/shu.xml");
31         List<shu> list=handle.getshu();
32         System.out.print(list);
33         
34     }
35 
36 }
37 //把XML文档中的每一本书封装到一个book对象，并把多个book对象放到一个list集合当中返回
38 class BeanListHandler extends DefaultHandler
39 {
40     private List list=new ArrayList();
41     private String currentTag;
42     private shu book;
43     @Override
44     public void startElement(String uri, String localName, String qName,
45             Attributes attributes) throws SAXException {
46         if("书".equals(currentTag))
47         {
48             book=new shu();
49             
50         }
51     }
52     @Override
53     public void characters(char[] ch, int start, int length)
54             throws SAXException {
55         if("书名".equals(currentTag))
56         {
57             String name=new String(ch,start,length);
58             book.setName(name);
59         }
60         if("作者".equals(currentTag))
61         {
62             String author=new String(ch,start,length);
63             book.setAuthor(author);;
64         }
65         if("售价".equals(currentTag))
66         {
67             String price=new String(ch,start,length);
68             book.setPrice(price);
69         }
70     }
71 
72     @Override
73     public void endElement(String uri, String localName, String name)
74             throws SAXException {
75         currentTag=null;
76         if("书".equals(name))
77         {
78             list.add(book);
79             book=null;
80         }
81         
82     }
83     public List getshu() {
84         return list;
85     }
86 
87     
88     
89 }

程序不完整，没有打印功能，只能用debug调试看结果

posted on 2015-02-03 17:15  曾经的码农  阅读(323)  评论(0)  编辑  收藏  举报