g关于DOM4J得到xml文档中的跟节点下来一个子节点....

Java code:
import org.dom4j.*;
import java.io.*;
import org.dom4j.io.*;

public class CreateXML {

public static void main(String[] args) {
//创建空文档
Document document = DocumentHelper.createDocument();

//添加根元素
Element eleCakes = DocumentHelper.createElement("cakes");
document.setRootElement(eleCakes);

//添加子元素
Element eleCake1 = eleCakes.addElement("cake");
Element eleName1 = eleCake1.addElement("name");
Element elePrice1 = eleCake1.addElement("price");

//添加元素内容
eleName1.addText( "巧克力蛋糕" );
elePrice1.addText("45.0");

//添加属性
eleCake1.addAttribute("code", "B01");

//添加子元素
Element eleCake2 = eleCakes.addElement("cake");
Element eleName2 = eleCake2.addElement("name");
Element elePrice2 = eleCake2.addElement("price");

//添加元素内容
eleName2.addText("冰淇淋蛋糕");
elePrice2.addText("50.0");

//添加属性
eleCake2.addAttribute("code", "B02");

/*保存文档*/
OutputFormat format = OutputFormat.c