DOM解析XML

DEMO

 1 List booklist=new ArrayList();
 2     String id="";
 3     String title="";
 4     String price="";
 5     //获得实例工厂
 6     DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
 7     //获得解析
 8     DocumentBuilder builder=factory.newDocumentBuilder();
 9     //获得document
10 
11     Document document=builder.parse("books.xml");//根目录下失误books.xml
12 
13 
14     //获取所有book结点
15     NodeList element=document.getElementsByTagName("book");
16     //遍历book结点
17     for (int i = 0; i < element.getLength(); i++) {
18         //获取每一个book结点
19         Node node=element.item(i);
20         //结点转换为元素
21         Element bookElement=(Element)node;
22         id=bookElement.getAttribute("id");
23         //获取所有孩子结点
24         NodeList childNodeList=bookElement.getChildNodes();
25         //遍历结点
26         for (int c = 0; c < childNodeList.getLength(); c++) {
27             Node cNode=childNodeList.item(c);
28             //获取结点名字
29 
30             String cName=cNode.getNodeName();
31 
32             //是否是title
33             if("title".equals(cName))
34             {          
35                 title=cNode.getTextContent();
36  
37             }
38             if("price".equals(cName))
39             {          
40                 price=((Element)cNode).getAttribute("unit");
41                 price+=cNode.getTextContent();
42             }
43              
44 
45         }
46 
47 
48         book bo=new book();
49         bo.setId(id);
50         bo.setName(title);
51         bo.setPrice(price);
52          
53         booklist.add(bo);//添加到list中

 XML文件

1 <?xml version="1.0" encoding="UTF-8"?>
 2 <books>
 3     <book id="b001">
 4         <title>Java Core</title>
 5         <price>34</price>
 6     </book>
 7     <book id="b002">
 8         <title>Thinking in Java</title>
 9         <price unit="￥">98</price>
10     </book>
11 </books>