利用dom4j解析 Google sitemap.xml

所需 dom4j包
转载出处：中国易成网

package com.xml;
import java.io.File;
import java.io.FileWriter;
import java.text.SimpleDateFormat;
import java.util.Date;

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;
/**
* <p>Title: dom4j 解析XML文件</p>
* <p>Description: 利用dom4j解析 Google sitemap.xml</p>
* <p>Copyright: Copyright (c) 2006</p>
* <p>Company: 聚能易成</p>
* Creation date: 2006-4-19
* @author dirboy
* @version 1.0
*/
public class XMLDemo {

public static void main(String[] args) {
String xmlpath = "c:/sitemap.xml";
String priority = "0.5";//级 别
String changefreq = "weekly";//频 率
String updatetime = getDateTimefileYMD();//更新时间
try{
Document document = DocumentHelper.createDocument();
Element urlsetElement = document.addElement("urlset");
urlsetElement.addAttribute("xmlns","http://www.google.com/schemas/sitemap/0.84");

Element urlElement = urlsetElement.addElement("url");
Element locElement = urlElement.addElement("loc");
Element lastmodElement = urlElement.addElement("lastmod");
Element changefreqElement = urlElement.addElement("changefreq");
Element priorityElement = urlElement.addElement("priority");
//赋值首页
locElement.setText("http://www.zaza.com.cn/index.html");
lastmodElement.setText(updatetime);
changefreqElement.setText(changefreq);
priorityElement.setText(priority);
//END
for(int i=0;i<10;i++){
urlElement = urlsetElement.addElement("url");
locElement = urlElement.addElement("loc");
lastmodElement = urlElement.addElement("lastmod");
changefreqElement = urlElement.addElement("changefreq");
priorityElement = urlElement.addElement("priority");
//赋值
locElement.setText("http://www.zaza.com.cn/demo"+i+".html");
lastmodElement.setText(updatetime);//这里时间是你更新时间，这里暂时统一
changefreqElement.setText(changefreq);
priorityElement.setText(priority);
}
XMLWriter writer = new XMLWriter(new FileWriter(new File(xmlpath)));
writer.write(document);
writer.close();
document = null;
//格式化
formatXMLFile(xmlpath,"UTF-8");//
}catch(Exception ex){
ex.printStackTrace();
}
}
/**
* 格式化XML文档,并解决中文问题
* @param xmlpath：xml文件路径
* @param charSet:格式化的字符集
* @return
*/
public static boolean formatXMLFile(String xmlpath,String charSet) {
boolean returnValue = false;
try {
SAXReader saxReader = new SAXReader();
Document document = saxReader.read(new File(xmlpath));
XMLWriter output = null;
OutputFormat format = OutputFormat.createPrettyPrint();
format.setEncoding(charSet);
output = new XMLWriter(new FileWriter(new File(xmlpath)), format);
output.write(document);
output.close();
document = null;
saxReader = null;
returnValue = true;
} catch (Exception ex) {
ex.printStackTrace();
}
return returnValue;
}
public static String getDateTimefileYMD() {
SimpleDateFormat simpledateformat = new SimpleDateFormat("yyyy-MM-dd");
String s = simpledateformat.format(new Date());
return s;
}
}