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>

package com.haven.reply.serviceimpl;
 
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.jdom.Comment;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
 
public class JavaXMLDaoImpl {
 
	public void createXMLDoc() {
		// 创建根节点 root;
		Element root = new Element("root");
 
		// 根节点添加到文档中； 根节点是唯一的
		Document Doc = new Document(root);
 
		// 下面开始向XML文档中插入数据
		// 创建节点elemets1;
		Element elements1 = new Element("elemets1");
 
		// 给 elemets 节点添加属性 name;
		elements1.setAttribute("name", "test1");
 
		// 给 elemets 节点添加子节点并赋值；
		elements1.addContent(new Element("note1-1").setText("value1-1"));
		elements1.addContent(new Element("note1-2").setText("value1-2"));
		// 添加一个注释
		elements1.addContent(new Comment("This is Comment!!!!"));
		elements1.addContent(new Element("note1-3").setText("value1-3"));
 
		// 给父节点list添加user子节点;
		root.addContent(elements1);
 
		// 继续创建节点elemets2;方法和步骤和elemets1完全一样
		Element elements2 = new Element("elemets2");
 
		// 给 elemets 节点添加属性 name;
		elements2.setAttribute("name", "test2");
 
		// 给 elemets 节点添加子节点并赋值；
		elements2.addContent(new Element("note2-1").setText("value2-1"));
		elements2.addContent(new Element("note2-2").setText("value2-2"));
		elements2.addContent(new Comment("This is Comment!!!!"));
		elements2.addContent(new Element("note2-3").setText("value2-3"));
 
		root.addContent(elements2);
 
		// 下面是美化工作，如果不进行排版，生成的XML全部在一行显示。可读性很差
		Format format = Format.getCompactFormat();
		format.setEncoding("UTF-8");
		format.setIndent("    "); // 缩进4个空格后换行
 
		XMLOutputter XMLOut = new XMLOutputter(format);
 
		// test.xml为生成的xml文档名
		try {
			XMLOut.output(Doc, new FileOutputStream("test.xml"));
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
 
	}
 
	public static void main(String[] args) {
		try {
			JavaXMLDaoImpl j2x = new JavaXMLDaoImpl();
			System.out.println("生成 mxl 文件...");
			j2x.createXMLDoc();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
 
}

 
        value1-1
        value1-2
        <!--This is Comment!!!!-->
        value1-3
 
        value2-1
        value2-2
        <!--This is Comment!!!!-->
        value2-3