解析XML文件

1 <bookstore name="123" value="456">
2     <book>
3         <bookname>小人书</bookname>
4         <author>张三</author>
5         <price>50</price>
6     </book>
7 </bookstore>

 1 package com.test.xml;
 2 
 3 import java.io.File;
 4 import java.util.Iterator;
 5 import java.util.logging.Logger;
 6 
 7 import org.dom4j.Attribute;
 8 import org.dom4j.Document;
 9 import org.dom4j.DocumentException;
10 import org.dom4j.Element;
11 import org.dom4j.io.SAXReader;
12 
13 public class ParseXML {
14     
15     private final static String filename = "book.xml";
16     
17     public static void main(String[] args) {
18         SAXReader reader = new SAXReader();
19         
20         try{
21             Document document = reader.read(new File(filename));
22             //获得根元素
23             Element rootElement = document.getRootElement();
24             //获得根元素的属性
25             String rootAttribute = "";
26             for(Iterator iterator = rootElement.attributeIterator();iterator.hasNext();){
27                 Attribute attribute = (Attribute)iterator.next();
28                 rootAttribute += (attribute.getName()+",");
29             }
30             pp(filename + "文件的根元素为: " + rootElement.getName() + "(属性有： " + rootAttribute + ")");
31             
32             //对根元素下一级的子元素遍历
33             for(Iterator iterator1 = rootElement.elementIterator();iterator1.hasNext();){
34                 Element element1 = (Element)iterator1.next();
35                 pp(rootElement.getName() + "的子元素有: " + element1.getName());
36                 
37                 //遍历子元素的子元素
38                 String sonelement = "";
39                 for(Iterator iterator2 = element1.elementIterator();iterator2.hasNext();){
40                     Element element2 = (Element)iterator2.next();
41                     sonelement += (element2.getName()+",");
42                 }
43                 pp(element1.getName() + "的子元素有: " + sonelement);
44             }
45             
46         }catch(DocumentException e){
47             //采用日志的方式记录错误
48             Logger.getLogger(Logger.GLOBAL_LOGGER_NAME).info(e.getMessage());
49         }
50     }
51     
52     public static void pp(Object o){
53         System.out.println(o.toString());
54     }
55 }