XML文档的使用方法

<!ELEMENT BookStore (book+)>
<!ELEMENT book (name,author,price)>
<!ELEMENT name (#PCDATA)>
<!ELEMENT author (#PCDATA)>
<!ELEMENT price (#PCDATA)>
<!ATTLIST book bookname CDATA #REQUIRED>

			//		(1)创建解析器
			SAXReader sr=new SAXReader();
			//			(2)加载需要解析文件		
			String path = Demo4j.class.getClassLoader().getResource("MyXml.xml").getPath();
			File f=new File(path);
			Document dou= sr.read(f);
			//			(3)获取根标签元素
			Element root=dou.getRootElement();
			//			(4)根据需求去解析想要的数据
			List <Element> list=root.elements();
			for(Element e:list)
			{
				System.out.println(e.elementText("name"));
			}

import java.util.ArrayList;
import java.util.List;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserFactory;
public class Pull
{
	/**
	 * @param args
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception
	{
		// TODO Auto-generated method stub
		List<Book> li = null;
		Book b = null;
		// (1) 创建解析器工厂
		XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
		// (2) 使用工厂去制造一个解析器
		XmlPullParser xp = factory.newPullParser();
		// (3) 将需要解析的文档放到解析器中
		xp.setInput(Pull.class.getClassLoader()
				.getResourceAsStream("MyXml.xml"), "UTF-8");
		// (4) 进行解析
		// 需求：将文档中的数据保存到一个集合
		int type = 0;
		while ((type = xp.getEventType()) != XmlPullParser.END_DOCUMENT)
		{
			String name = xp.getName();
			System.out.println(name);
			switch (type)
			{
			case XmlPullParser.START_TAG:
				if ("BookStore".equals(name))
				{
					li = new ArrayList<Book>();
				}
				else if ("book".equals(name))
				{
					b = new Book();
					b.setBookname(xp.getAttributeValue(0));
				}
				else if ("name".equals(name))
				{
					b.setName(xp.nextText());
				}
				else if ("author".equals(name))
				{
					b.setAuthor(xp.nextText());
				}
				else if ("price".equals(name))
				{
					b.setPrice(Integer.parseInt(xp.nextText()));
				}
				break;
			case XmlPullParser.END_TAG:
				if ("book".equals(name))
				{
					li.add(b);
				}
				break;
			}
			xp.next();
		}
		for (Book book : li)
		{
			System.out.println(book);
		}
	}
}