package com.havenliu.blog;
 
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
 
public class Dom4jXmlOper {
 
	public static void createXml(File file)
	{
		XMLWriter writer = null;
		SAXReader reader = new SAXReader();
 
		OutputFormat format = OutputFormat.createPrettyPrint();
		format.setEncoding("utf-8");//设置XML文件的编码格式,如果有中文可设置为GBK或UTF-8
 
		Document _document = DocumentHelper.createDocument();
		Element _root = _document.addElement("userinfo");
		Element user = _root.addElement("user");
		user.addAttribute("id", "001");
		Element name = user.addElement("name");
		name.setText("张三");
		Element age = user.addElement("age");
		age.setText("28");
		Element sex = user.addElement("sex");
		sex.setText("男");
		Element email = user.addElement("email");
		email.setText("abc@abc.com");
 
		//如果上面设置的xml编码类型为GBK，则应当用FileWriter来构建xml文件，否则会出现中文连码问题
		/*
		 try {
			writer = new XMLWriter(new FileWriter(file), format);
		} catch (IOException e1) {
			e1.printStackTrace();
		}
		*/
 
		//如果上面设置的xml编码类型为utf-8，则应当用FileOutputStream来构建xml文件，否则还是会出现乱码问题
		FileOutputStream fos = null;
		try {
			fos = new FileOutputStream(file);
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		try {
			writer = new XMLWriter(fos, format);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		try {
			writer.write(_document);
			writer.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	public static void main(String[] args)
	{
		String filePath = "d:\\temp\\user.xml";//生产的XML文件位置
		File file = new File(filePath);
		Dom4jXmlOper.createXml(file);
	}
 
}

<?xml version="1.0" encoding="utf-8"?>
 
<userinfo>
  <user id="001">
    <name>张三</name>
    <age>28</age>
    <sex>男</sex>
    <email>abc@abc.com</email>
  </user>
</userinfo>