Jdom 解析XML

一个非常简单的例子,用Jdom解析XML.

首先建一个XML.放在自己的工程路径下.如自己的项目位置在E:/work/JdomDemo.
我的book.xml内容如下:

<?xml version="1.0" ?>
<books>
	<book id="1">
		<name>Java</name>
		<price>25</price>
		<date>2005-01-01</date>
	</book>
	<book id="2">
		<name>C++</name>
		<price>18</price>
		<date>2006-01-01</date>
	</book>
	<book id="3">
		<name>C#</name>
		<price>28</price>
		<date>2004-02-01</date>
	</book>
</books>

写个例子,用Jdom读取book id 为2的name.也就是最终结果要显示C++.
程序如下:

package jdom.demo;

import java.io.File;
import java.io.IOException;
import java.util.List;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;

public class JdomDemo {
	
	public static void main(String[] args){
		SAXBuilder builder=new SAXBuilder();
		
		try {
			Document doc = builder.build("book.xml");
			Element root = doc.getRootElement();
			List books =root.getChildren();
			for(int i=0; i<books.size(); i++)
			{
				Element book=(Element)books.get(i);
				if(book.getAttributeValue("id").equals("2"))
				{
					System.out.println(book.getChild("name").getValue());
				}
			}
		} catch (JDOMException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

OK,搞定,就是这么简单.