应用JDOM读写xml(1)

使用JDOM读写xml(1)

JDOM下载地址http://www.jdom.org/downloads/index.html

本文使用了JDOM的一些简单功能创建了一个标准的XML文件，如果需要对创建的XML有详细的格式要求，请参照API文档作相应设置

//父节点Element head = new Element("head");                root.setAttribute("root", "this is root");//设置属性//子节点，用来显示文件Element fileElement = new Element("file");fileElement.setText("c:/a.txt");head.addContent(fileElement);//子节点Element testElement = new Element("test");testElement.addContent(new Element("testInner").setText("test"));head.addContent(testElement);Document doc = new Document();                //加入处理指令                Map<String, String> map = new HashMap<String, String>();map.put("type","text/xsl");map.put("href","products.xsl");ProcessingInstruction pi = new ProcessingInstruction("xml-stylesheet",map);//处理指令doc.addContent(pi);                //设置doctypeDocType type = new DocType("struts");type.setPublicID("-//Apache Software Foundation//DTD Struts Configuration 2.0//EN");type.setSystemID("http://struts.apache.org/dtds/struts-2.0.dtd");                //必须先doctype加入到document中之后才能再加入根节点doc.addContent(type);doc.setRootElement(head);Format format = Format.getCompactFormat();format.setEncoding("utf-8");format.setIndent(" ");//设置缩进XMLOutputter out = new XMLOutputter(format);System.out.println(out.outputString(doc));out.output(doc, new FileOutputStream(new File("d:/a.xml")));

??最后输出的结果是：

<?xml version="1.0" encoding="utf-8"?><?xml-stylesheet type="text/xsl" href="products.xsl"?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"><root root="this is root"> <file>c:/a.txt</file> <test>  <testInner>test</testInner> </test></root>