XML 文件的操作(六)

<?xml version="1.0" encoding="gb2312"?>

<?xml-stylesheet type="text/xsl" href="students.xsl"?>

<students>
	<student sn="01">
		<name>张三</name>
		<age>18</age>
	</student>
	
	<student sn="02">
		<name>李四</name>
		<age>20</age>
	</student>
</students>

JDOM对文件操作

package com.ibm.xml;

import java.io.File;
import java.io.IOException;

import org.jdom.*;
import org.jdom.input.SAXBuilder;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;


/**
 * JDOM对文件做增加、修改、删除
 * @author Administrator
 *
 */
public class JDOMConvert
{

	
	public static void main(String[] args)
	{
		SAXBuilder saxBuilder=new SAXBuilder();
		try
		{
			Document doc=saxBuilder.build(new File("students.xml"));
			
			Element eltStu=new Element("student");
			Element eltName=new Element("name");
			Element eltAge=new Element("age");
			
			eltName.setText("王五");
			eltAge.setText("19");
			
			eltStu.addContent(eltName);
			eltStu.addContent(eltAge);
			eltStu.setAttribute("sn","03");
			
			Element root=doc.getRootElement();
			root.addContent(eltStu);
			
			root.removeChild("student");
			
			root.getChild("student").getChild("age").setText("22");
			
			XMLOutputter xmlOut=new XMLOutputter();
			
			Format fmt=Format.getPrettyFormat();
			fmt.setIndent("    ");
			fmt.setEncoding("gb2312");
			
			xmlOut.setFormat(fmt);
			try
			{
				xmlOut.output(doc,System.out);
			}
			catch (IOException e)
			{
				// TODO 自动生成 catch 块
				e.printStackTrace();
			}
			
		}
		catch (JDOMException e)
		{
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}
		catch (IOException e)
		{
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}

	}

}