java jdom编辑xml文件
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page import= "org.jdom.*, java.util.*,
org.jdom.input.SAXBuilder,org.jdom.output.XMLOutputter,java.io.*" %>
<%
SAXBuilder saxBuilder = new SAXBuilder();
Document doc = saxBuilder.build("http://localhost:8080/cPEP_UI/config.xml");
%>
<html>
<head><title>Configuration Manager</title></head>
<body>
<h1><font color='green'>Configuration Manager</font></h1>
<%! private String type;
Element childNode;
Element create;
Element parent;
%>
<%
List list = doc.getRootElement().getChildren();
Iterator iter = list.iterator();
while (iter.hasNext()){
Element element = (Element) iter.next();
List NameDOBCity = element.getChildren();
Iterator listIter = NameDOBCity.iterator();
%>
<%
while ( listIter.hasNext() ){
childNode = (Element) listIter.next();
String param = request.getParameter(childNode.getName()+childNode.getAttributeValue("id"));
Enumeration e = request.getParameterNames();
while(e.hasMoreElements()){
String s = (String)e.nextElement();
if(s.equalsIgnoreCase(childNode.getName()))
childNode.setText(param);
}
%>
<%
}
}
XMLOutputter xmlOutputter = new XMLOutputter();
xmlOutputter.output(doc, new FileWriter("E:/workbench j2ee/cPEP_UI/WebContent/config.xml"));
%>
</body>
</html>
** 代码有什么问题？！它没有显示任何错误，但也没有更改元素文本。实际上我正在制作一个 gui，需要使用 jsp 中的文本框编辑 config.xml。
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ page import= "org.jdom.*, java.util.*,
org.jdom.input.SAXBuilder,org.jdom.output.XMLOutputter,java.io.*" %>
<%
SAXBuilder saxBuilder = new SAXBuilder();
Document doc = saxBuilder.build("http://localhost:8080/cPEP_UI/config.xml");
%>
<html>
<head><title>Configuration Manager</title></head>
<body>
<h1><font color='green'>Configuration Manager</font></h1>
<%! private String type;
Element childNode;
Element create;
Element parent;
%>
<%
List list = doc.getRootElement().getChildren();
Iterator iter = list.iterator();
while (iter.hasNext()){
Element element = (Element) iter.next();
List NameDOBCity = element.getChildren();
Iterator listIter = NameDOBCity.iterator();
%>
<%
while ( listIter.hasNext() ){
childNode = (Element) listIter.next();
String param = request.getParameter(childNode.getName()+childNode.getAttributeValue("id"));
Enumeration e = request.getParameterNames();
while(e.hasMoreElements()){
String s = (String)e.nextElement();
if(s.equalsIgnoreCase(childNode.getName()))
childNode.setText(param);
}
%>
<%
}
}
XMLOutputter xmlOutputter = new XMLOutputter();
xmlOutputter.output(doc, new FileWriter("E:/workbench j2ee/cPEP_UI/WebContent/config.xml"));
%>
</body>
</html>
** whats wrong with the code?! Its not showing any error, but not changing the element text either. Actually I am making an gui, and need to edit config.xml using textbox in jsp.
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使用 FileWriter.close() 关闭 Filewriter 可能会有所帮助...
Closing the Filewriter using
FileWriter.close()could help...