package dom4j_write;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;

import org.dom4j.Document;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

/**
 * 输出写出一个xml文件：
 * 		XMLWriter。
 * 
 * 利用XMLWriter实现：
 * 		1）读取原来的xml文件（document对象）。Demo01 copy
 * 		2）操作document对象，改变xml信息（document对象）。Demo02 format and  encoding
 * 		3）把修改后的document对象写出到xml文件中（覆盖原来的文件）。
 * 
 * @author mzy
 *
 */
public class Demo01 {
	public static void main(String[] args) throws Exception {
		Document doc = new SAXReader().read(new File("././src/contact.xml"));
		/**
		 * 输出流：
		 * 		字符输出流:
		 * 			Writer -> FileWriter/BufferedWriter
		 * 					write(char c);
		 * 					write(char[] data);
		 * 					write(String str);
		 * 
		 * 
		 * 		字节输出流：
		 * 			OutputStream -> FileOutputStream/BufferedOutputStream/ObjectOutputStream
		 * 					write(byte);
		 * 					write(byte[] data);
		 */
		
		
		// 创建输出流
		OutputStream outStream = new FileOutputStream("E:/user/eclipse_workStation/XML/src/dom4j_write/target.xml");
		// 1）创建输出对象
		XMLWriter writer = new XMLWriter(outStream);
		// 2）写出数据
		writer.write(doc);
		
		
	}
}

xml结构，如下：

<?xml version="1.0" encoding="gbk"?>
<contact-list>
	<contact id="001" name="eric">
		<name>张三</name>
		<gender>男</gender>
		<phone>134001114</phone>
		<email>zhangsan@qq.com</email>
		<address>成都</address>
	</contact>
	<contact id="002">
		<name>李四</name>
		<gender>男</gender>
		<phone>134001115</phone>
		<email>lisi@qq.com</email>
		<address>广州</address>
	</contact>
	<contact id="003">
		<name>王五</name>
		<gender>男</gender>
		<phone>134001116</phone>
		<email>wangwu@qq.com</email>
		<address>上海</address>
	</contact>
</contact-list>