求救:后台java解析xml文件把数据显示在jsp页面,如何对循环表单修改和增加???

那我把代码贴出来吧!
<1>在e:\sysconfig.xml<?xml version="1.0" encoding="GBK"?>
<sysconfig>
  <config key="starturl">1424524</config>
  <config key="dbconnectionfile">12120</config>
</sysconfig><2>有JudgeXml.jsp
<%@ page language="java"  pageEncoding="utf-8"%>
<%@ page import="java.io.*" %>
<%
  if(request.getMethod().toLowerCase().equals("post")){//提交状态下
      String filename=request.getParameter("filename");
      if(filename!="" && filename!=null){
          File f=new File(filename);
           if(f.exists()){
              System.out.println("文件已存在");
             // response.sendRedirect("/test.jsp");
              request.getRequestDispatcher("/test2.jsp").forward(request,response);
                }
           else{
               //显示编写文件的块
              System.out.println("文件不存在");
              request.getRequestDispatcher("/CreatXml.jsp").forward(request,response);
              }
         }
  }
%><html>
<head>
<title>系统部署配置文件参数</title>
</head>
<form   method="POST" action="JudgeXml.jsp">
<table width="100%" border="0" cellspacing="0" cellpadding="2">
  <tr>
    <td height="23" nowrap bgcolor="D6E5EF"><span class="T2">系统部署管理>>系统配置文件判断</span></td>
  </tr>
</table>
<br>
<br>
<table width="80%" border="0" align="center" cellpadding="2" cellspacing="1" class="tableStyle01">
  <tr>
    <td align="right" class="TDstyle01">filename： </td>
    <td class="TDstyle01"><input name="filename" type="text" class="input"  ></td>
  </tr>
  <tr align="center">
    <td height="35" colspan="2" class="TDstyle03"> <input name="submit" type="submit" class="button" value=" 提交 " >
    <input name="submit" type="button" class="button" value=" 返回 " onClick="window.history.back(-1)">
    </td>
  </tr>
</table>
</form>
</body>
</html><3>后台xmlbean.java
package jdom.test;/**
* XML的读写操作Bean
*/
import java.io.*;
import java.util.*;
import org.jdom.*;
import org.jdom.output.*;
import org.jdom.input.*;
import javax.servlet.*;
import javax.servlet.http.*;public class XmlBean {
private String key,record;
private Integer id;

public Integer getId() {
return id;
}
public String getKey() {
  return key;
} public String getRecord() {
  return record;
} public void setId(int id){
this.id=id;
}

public void setKey(String key) {
  this.key = key;
} public void setRecord(String record) {
  this.record = record;
} public XmlBean() {
} /**
  * 读取XML文件所有信息
  */
public Vector LoadXML(String path) throws Exception {
  Vector xmlVector = null;
  FileInputStream fi = null;
  try {
   fi = new FileInputStream(path);
   xmlVector = new Vector();
   SAXBuilder sb = new SAXBuilder();
   Document doc = sb.build(fi);
   Element root = doc.getRootElement(); // 得到根元素
   List configs = root.getChildren(); // 得到根元素所有子元素的集合
   XmlBean xml = null;
   for (int i = 0; i < configs.size(); i++) {
   System.out.println("---------------------------");
   xml=new XmlBean();
//   Element item=(Element)configs.get(i);//取得节点实例
   Element config=(Element)configs.get(i);
                   int id=i;
             xml.setId(id);
             System.out.println("id:"+id);
//  String key=item.getAttribute("key").getValue();
     String key=config.getAttribute("key").getValue();

   xml.setKey(key);

  //    xml.setId(i);
   //   System.out.println("id:"+id);
   System.out.println("key:"+key);

//   String record=item.getValue();
    String record=config.getValue();
   System.out.println("record:"+record);
   xml.setRecord(record);
   xmlVector.add(xml);
  }
  } catch (Exception e) {
   System.err.println(e + "error");
  } finally {
   try {
    fi.close();
   } catch (Exception e) {
    e.printStackTrace();
   }
  }
  return xmlVector;
}
<4>在JudgeXml.jsp页面中输入e:\sysconfig.xml跳转到test2.jsp
<5>test2.jsp<%@ page contentType="text/html;charset=utf-8"%>
<%@ page language="java" import="java.util.*,jdom.test.*"%>
<html>
<head>
<title>配置文件参数读取</title>
</head>
<style type="text/css">
.tableStyle01 {
background-color: #ABDDEE;
border: 1px solid #4692AE;
}
.TDstyle01 {
font-size: 15px;
color: #000000;
background-color: #F6FCFD;
line-height: 22px;
}
.TDstyle02 {
font-size: 12px;
line-height: 22px;
color: #000000;
background-color: #E2F4F9;
height: 24px;
}
.TDstyle03 {
font-size: 12px;
color: #000000;
background-color: #EDF7F9;
line-height: 22px;
}
.T2 {
font-size: 12px;
font-weight: bold;
color: #004C65;
}
</style>
<bodY>
<br><br>
<form  method="POST" action="xmlaction.jsp"><table width="100%" border="0" cellspacing="0" cellpadding="2">
  <tr>
    <td height="23" nowrap bgcolor="D6E5EF"><span class="T2">系统部署管理>>系统配置文件参数修改</span></td>
  </tr>
</table><br>
<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 </p>
<table width="80%" border="0" align="center" cellpadding="2" cellspacing="1" class="tableStyle01">


<%
   String path=request.getParameter("filename");
    path=path.toString();
// String path = application.getRealPath("f://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("key:"+xml.getKey()+"<br>");
     out.println("id:"+xml.getId()+"<br>");
    out.println("record:"+xml.getRecord()+"<br><br>");
    */

%>
<tr>
   


  <td class="TDstyle01"><%=xml.getKey() %></td>
  <td class="TDstyle01"><input id="record"&i  type="text" class="input"   name="record"&i  value="<%=xml.getRecord()%>"/></td>
  <input type="hidden" class="input" name="id" value="4"/>







</tr><%}%>
<tr>
   <td class="TDstyle01"><input name="key" type="text" class="input" style="width:80%" ></td>
   <td class="TDstyle01"><input name="Record" type="text" class="input" style="width:80%" ></td>
</tr>
</p>  <input type="hidden" name="path" value="<%=path%>">
<tr align="center">
  <td height="35" colspan="2" class="TDstyle03"> <input name="submit" type="submit" class="button" value=" 保存 " >
  <input name="submit" type="button" class="button" value=" 返回 " onClick="window.history.back(-1)">
  </td>
</tr>
</table>
</form></body>
</html>对循环表单的值就行修改或增加,来实现对xml文件的修改??<6>xmlaction.jsp
...
可以用，也可以不用。
用JS不就是AJAX吗。
不用就直接表单提交就OK了撒。
对循环表单的数据进行批量修改.完成对原xml的更新

调试易

求救:后台java解析xml文件把数据显示在jsp页面,如何对循环表单修改和增加???

解决方案 »