JDOM操作XML文件

来源：Linuxdby.com 作者：Webmaster 时间：2007-04-28 点击： [收藏] [投稿]

try {
   request.setCharacterEncoding("GBK");
   String path = request.getParameter("path");
   int xmlid = Integer.parseInt(request.getParameter("id"));
   fi = new FileInputStream(path);
   SAXBuilder sb = new SAXBuilder();
   Document doc = sb.build(fi);
   Element root = doc.getRootElement(); // 得到根元素
   List books = root.getChildren(); // 得到根元素所有子元素的集合
   Element book = (Element) books.get(xmlid);
   String bookname = request.getParameter("bookname");
   String author = request.getParameter("author");
   String price = request.getParameter("price");
   String pub = request.getParameter("pub");
   String pubdate = request.getParameter("pubdate");

//   Text newtext;
   Element newname = book.getChild("书名");
   newname.setText(bookname);// 修改书名为新的书名
   Element newauthor = book.getChild("作者");
   newauthor.setText(author);
   Element newpub = book.getChild("出版社");
   newpub.setText(pub);
   Element newprice = book.getChild("价格");
   newprice.setText(price);
   Element newdate = book.getChild("出版日期");
   newdate.setText(pubdate);
   // books.set(xmlid,book);//修改子元素
//   String indent = " ";
//   boolean newLines = true;
//   XMLOutputter outp = new XMLOutputter(indent, newLines, "GBK");
      Format format = Format.getPrettyFormat();
      format.setIndent(" ");
      format.setEncoding("utf-8");
      XMLOutputter outp = new XMLOutputter(format);
   fo = new FileOutputStream(path);
   outp.output(doc, fo);
} catch (Exception e) {
   System.err.println(e + "error");
} finally {
   try {
    fi.close();
    fo.close();
   } catch (Exception e) {
    e.printStackTrace();
   }
}
}
}

下面是操作的jsp文件: test.jsp
<%@ page contentType="text/html;charset=GBK"%>
<%@ page language="java" import="java.util.*,jdom.test.*"%>
<html>
<head>
<title>读取XML文件资料</title>
</head>
<body>
<h3 align="center">JDOM操作XML文件</h3>
<p align="center">读取XML文件中的所有资料</p>
<center>
<table border="1" cellpadding="0" cellspacing="1"
style="border-collapse: collapse" width="80%" id="AutoNumber1">
<tr>
<td align="center" width="92">书名</td>
<td align="center" width="92">作者</td>
<td align="center" width="92">出版社</td>
<td align="center" width="92">价格</td>
<td align="center" width="92">出版日期</td>
<td align="center" width="94">操作</td>
</tr>
</table>
<%
String path = application.getRealPath("/JDOM/MyXml.xml");

XmlBean xml = new XmlBean();
Vector xmlall = xml.LoadXML(path);
for (int i = 0; i < xmlall.size(); i++) {
   xml = (XmlBean) xmlall.elementAt(i);
   /**out.println("书名:"+xml.getbookname()+"<br>");
    out.println("作者:"+xml.getauthor()+"<br>");
    out.println("出版社:"+xml.getpub()+"<br>");
    out.println("价格:"+xml.getprice()+"<br>");
    out.println("出版日期:"+xml.getpubdate()+"<br><br>");
    */
%>
<table border="1" cellpadding="0" cellspacing="1"
style="border-collapse: collapse" width="80%" id="AutoNumber2">
<tr>
<td align="center" width="92"><%=xml.getbookname()%></td>
<td align="center" width="92"><%=xml.getauthor()%></td>
<td align="center" width="92"><%=xml.getpub()%></td>
<td align="center" width="92"><%=xml.getprice()%></td>
<td align="center" width="92"><%=xml.getpubdate()%></td>
<td align="center" width="94"><a
   href="xmlaction.jsp?act=del&id=<%=i%>&path=<%=path%>">删除</a></td>
</tr>
</table>
<%}%></center>
<form method="POST" action="xmlaction.jsp">
<p align="center"><input type="radio" value="add" checked name="act">添加资料
<input type="radio" value="edit" name="act">编辑资料序号:<select size="1"

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