📄 jdom_write.jsp

📁 jsp动态网站开发技术与实践电子工业出版社随书附赠源代码

💻 JSP

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<%@ page contentType="text/html; charset=gb2312" language="java"%>
<%@ page import="org.jdom.*"%>
<%@ page import="org.jdom.output.*"%>
<%@ page import="org.jdom.input.*"%>
<%@ page import="java.io.*"%>
<%@ page import="java.util.*"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
		<title>使用JDOM解析接口写XML文件</title>
	</head>
	<body>
	<div align="center">
	<h1>使用JDOM解析接口写XML文件</h1>
	<%
		//获取所要读的XML文件的路径
		String sFileName = getServletConfig().getServletContext().getRealPath("ware.xml");
		try
		{
			//建立所要操作的XML文件的输入流对象
			FileInputStream fi = new FileInputStream(sFileName);	
			//为解吸XML文件创建JDOM对象		
			SAXBuilder SaxB = new SAXBuilder();
			Document Doc = SaxB.build(new FileInputStream(sFileName));
			//得到根元素
			Element root = Doc.getRootElement();
			//得到根元素所有子元素的集合
			List ware = root.getChildren();
			//添加节点信息
			Element newWare = new Element("商品");   
			Element newID = new Element("编号");
			newID.setText("T00003");
			newWare.addContent(newID);
			Element newName = new Element("名称");
			newName.setText("水杯");
			newWare.addContent(newName);
			Element newPrice = new Element("价格");
			newPrice.setText("6.0");
			newWare.addContent(newPrice);     
			ware.add(newWare);
			//保存到XML文件
			Format format = Format.getPrettyFormat();
			format.setIndent("  ");
			format.setEncoding("gb2312");
			XMLOutputter outp = new XMLOutputter(format);
			FileOutputStream fo = new FileOutputStream(sFileName);
			outp.output(Doc,fo);
		}
		catch(Exception e)
		{
			e.printStackTrace();
			return;
		}
		out.println("<p><font color=blue>成功将下列信息写入ware.xml文件</font></p>");
		out.println("<p>编号：<font color=red>T00003</font>&nbsp;&nbsp;名称：<font color=red>水杯</font>&nbsp;&nbsp;价格：<font color=red>6.0</font></p>");
	%>	
</div>
</body>
</html>

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