各位大哥我对xml文件不是很熟悉我有这样一个xml文件请问怎样解析

/**

 * 

 */

package com.ecc.test1105;



import java.io.File;

import java.io.IOException;

import java.io.StringReader;



import javax.xml.parsers.DocumentBuilder;

import javax.xml.parsers.DocumentBuilderFactory;

import javax.xml.parsers.ParserConfigurationException;



import org.springframework.core.io.ClassPathResource;

import org.springframework.core.io.Resource;

import org.w3c.dom.Document;

import org.w3c.dom.Node;

import org.w3c.dom.NodeList;

import org.xml.sax.InputSource;

import org.xml.sax.SAXException;



/**

 * @author Liu Shijie

 * 

 */

public class XmlParser {

	/**

	 * @param args

	 */

	public static void main(String[] args) {

		try {

			//Resource r = new ClassPathResource("MyXml.xml");//使用Spring类比较方便

			DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

			DocumentBuilder db = dbf.newDocumentBuilder();

			//Document d = db.parse(r.getInputStream());

			Document d = db.parse(new File("MyXml.xml"));

			NodeList nl = d.getChildNodes();

			// System.out.println(nl.getLength());

			Node n = nl.item(0);

			NodeList cnl = n.getChildNodes();

			// System.out.println(cnl.getLength());

			for (int i = 0; i < cnl.getLength(); i++) {

				Node cn = cnl.item(i);

				if (cn.getNodeType() == Node.ELEMENT_NODE) {

					// System.out.println(cn.getNodeName());

					if (cn.getNodeName().equals("Content")) {

						String cnv = cn.getFirstChild().getNodeValue();

						// System.out.println(cn.getFirstChild().getNodeValue());

						Document cnd = db.parse(new InputSource(

								new StringReader(cnv)));

						NodeList cnnl = cnd.getChildNodes();

						// System.out.println(cnnl.getLength());

						Node cnn = cnnl.item(0);

						NodeList cncnl = cnn.getChildNodes();

						// System.out.println(cncnl.getLength());

						for (int j = 0; j < cncnl.getLength(); j++) {

							Node cncn = cncnl.item(j);

							if (cncn.getNodeType() == Node.ELEMENT_NODE) {

								// System.out.println(cncn.getNodeName());

								if (cncn.getNodeName().equals("AccNbr")) {

									System.out.println(cncn.getFirstChild()

											.getNodeValue());

								}

							}

						}

					}

				}

			}

		} catch (ParserConfigurationException e) {

			e.printStackTrace();

		} catch (SAXException e) {

			e.printStackTrace();

		} catch (IOException e) {

			e.printStackTrace();

		}

	}



}