com.google.code:sitemapgen4j介绍

作用：

    生成sitemap：在生成sitemap时，该类就比较好用，也不用自己再重新写。

总体类图：

   

使用：

package com.madding.shared.misc.sitemap;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.redfin.sitemapgenerator.ChangeFreq;
import com.redfin.sitemapgenerator.SitemapGeneratorBuilder;
import com.redfin.sitemapgenerator.WebSitemapGenerator;
import com.redfin.sitemapgenerator.WebSitemapUrl;

public class SitemapGen {

    public final static String        INDEX_HTML = "index.html";

    public static WebSitemapGenerator wsg        = null;

    // public static LinkedBlockingQueue<String> lbQueue = new LinkedBlockingQueue<String>();

    public static void main(String[] args) throws IOException, InterruptedException {
        String baseUrl = "http://detail.china.alibaba.com/";
        File oDir = new File("/home/madding/output/seo/sitemap/output");
        File iFile = new File("/home/madding/output/seo/sitemap/detail.china.alibaba.com");

        init(baseUrl, oDir);

        // read(iDir);

        // while(!lbQueue.isEmpty()) {
        // String url = (String) lbQueue.poll();
        // addUrl(url);
        // }

        BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(iFile)));
        while (br.ready()) {
            String url = br.readLine();
            if(url == null || "".equals(url)) continue;
            WebSitemapUrl.Options op =new WebSitemapUrl.Options(url);
            op.priority(1.0d);
            op.changeFreq(ChangeFreq.DAILY);
            op.lastMod(new Date());
            addUrl(op.build());
        }
        
        finish();
    }

    public static void init(String baseUrl, File oDir) throws MalformedURLException {
        SitemapGeneratorBuilder<WebSitemapGenerator> sitemapGenBuilder = WebSitemapGenerator.builder(baseUrl, oDir);
        
        sitemapGenBuilder.gzip(true);
        
        SimpleDateFormat dateformat=new SimpleDateFormat("yyyy-MM-dd_HH");
        String dataStr=dateformat.format(new Date());
        sitemapGenBuilder.fileNamePrefix("sitemap_" + dataStr);
        
        wsg = sitemapGenBuilder.build();
    }

    public static void addUrl(String url) throws MalformedURLException {
        wsg.addUrl(url);
    }

    public static void addUrl(WebSitemapUrl url) throws MalformedURLException {
        wsg.addUrl(url);
    }

    public static void finish() {
        wsg.write();
        wsg.writeSitemapsWithIndex();
    }
    

    // public static void read(File iFile) throws IOException, InterruptedException {
    // BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(iFile)));
    // while(br.ready()) {
    // lbQueue.put(br.readLine());
    // }
    // }
}

具体见：

https://programmer-tools.googlecode.com/svn/trunk/tools.doc