xml解析

Question

[code="xml"]<?xml version="1.0" encoding="UTF-8"?>

    <menu1 id="22" name="2"   hasChild="false"   url="" target="mainframe" >
    </menu1>
</menu>

[/code]
现有如上xml文件，读取xml文件，生成Document对象doc，请问n = doc.getFirstChild()指的是哪一部分，n.getFirstChild()又是指的哪一部分，在线求等答案，万分感谢！

Answer 1

package cn.com.wangxiuwei.test;

import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.xml.sax.SAXException;

public class TestXml {

/**
 * @param args
 * @throws ParserConfigurationException 
 * @throws IOException 
 * @throws SAXException 
 * @throws IOException 
 * @throws ClassNotFoundException 
 */
public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException{

    DocumentBuilderFactory dbf=DocumentBuilderFactory.newInstance();
    DocumentBuilder db=dbf.newDocumentBuilder();
    Document d=db.parse("src/test.xml");
    System.out.println(d.getFirstChild().getNodeName());

    System.out.println(d.getFirstChild().getFirstChild().getNodeName());

}

}
打印的结果
root
#text

因为有空文本存在 所以第二个是#text