java 利用DOM写入XML文档

package gao.javaweb.xml;

import java.io.File;

import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.transform.OutputKeys;

import javax.xml.transform.Transformer;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.dom.DOMSource;

import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

public class DomDemo01 {

public static void main(String args[]) throws Exception{

//(1)建DocumentBuilderFactory ，用于取得DocumentBuilder

DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();

//(2)通过DocumentBuilderFactory 取得DocumentBuilder

DocumentBuilder doBuilder=null;

doBuilder = factory.newDocumentBuilder();

//(3)定义Document接口 ，通过DocumentBuilder类进行DOM树的转换操作

Document doc=null;

doc=doBuilder.newDocument(); //新建一个新的文档

//(4) 建立各个操作节点

Element addresslist=doc.createElement("addresslist");

Element linkman=doc.createElement("linkman");

Element name=doc.createElement("name");

Element email=doc.createElement("email");

//(5) 设置节点的内容，即为每个节点添加文本节点

name.appendChild(doc.createTextNode("细雨湿衣"));

email.appendChild(doc.createTextNode("mldn@163.com"));

//(6)设置节点的关系

linkman.appendChild(name);

linkman.appendChild(email);

addresslist.appendChild(linkman);

doc.appendChild(addresslist); //文档上保存节点

//(7) 输出文档到文件中

TransformerFactory tf = TransformerFactory.newInstance();

Transformer t=null;

t=tf.newTransformer();

//设置文件编码

t.setOutputProperty(OutputKeys.ENCODING, "gb2312");

//利用DOMSource输出文档

DOMSource source = new DOMSource(doc);

//指定输出文件位置

StreamResult result=new StreamResult(new File("d:"+File.separator+"XML"+File.separator+"output.xml"));

t.transform(source, result); //输出

}

}