关于数据分析:人人都能学会数据分析16周完结

download：人人都能学会数据分析【16 周完结】

package com.zzger.model;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CountDownLatch;

import com.zzger.module.queue.UrlQueue;
import com.zzger.util.HttpUtils;
import com.zzger.util.RegexUtils;

public class WebSite {

/**
 * 站点 url
 */
private String url;
   
/**
 * 须要匍匐的 url 队列
 */
private UrlQueue<String> urls = new UrlQueue<>();
   
/**
 * 已匍匐过的页面 url
 */
private List<String> exitUrls = Collections.synchronizedList(new ArrayList<>());
   
private static final int TOTAL_THREADS = 12;  
   
private final CountDownLatch mStartSignal = new CountDownLatch(1);  
   
private final CountDownLatch mDoneSignal = new CountDownLatch(TOTAL_THREADS);   
   
public WebSite(String url){
    this.url = url;
    urls.offer(url);// 把网站首页退出须要匍匐的队列中
}
   
public void guangDu(){new Thread(new Runnable() {
        @Override
        public void run() {paxing(HttpUtils.httpGet(url));
        }
    }).start();}
   
public void paxing(String html){if(html.lastIndexOf("下一页 </a></li></ul></div>")<0)    return ;
    String strList = html.substring(html.indexOf("<li class=\\"next-page\\">"), 
            html.lastIndexOf("下一页 </a></li></ul></div>"));
    String url = RegexUtils.RegexString("<a href=\\"(.+?)\\"", strList);
    if(url.equals("Nothing")) return ;
    urls.put(url);// 把 url 存储到队列中
    paxing(HttpUtils.httpGet(url));
}
   
public void dxcPx(){Page<DuanZi> page = new Gxpage(urls.take());
    List<Section<DuanZi>> list = page.ybhqSection().getSections();
    for(Section<DuanZi> section : list){new Thread(new Runnable() {
            @Override
            public void run() {mStartSignal.countDown();// 计数减一为 0，工作线程真正启动具体操作   
                try {mStartSignal.await();// 阻塞，期待 mStartSignal 计数为 0 运行前面的代码   
                    // 所有的工作线程都在期待同一个启动的命令   
                } catch (InterruptedException e) {e.printStackTrace();
                }
                DuanZi duanzi = section.select().getModel();
                System.out.println(duanzi.getTitle());
                mDoneSignal.countDown();// 实现当前计数减一}
        }
        ).start();}
    try
    {mDoneSignal.await();// 期待所有工作线程完结   
    }  
    catch (InterruptedException e)  
    {e.printStackTrace();  
    }  
    dxcPx();// 线程工作执行完后，再次获取 url 队列进行工作}
public static void main(String[] args) {WebSite web = new WebSite("http://duanziwang.com");
    web.guangDu();
    for(int i = 0; i<10;i++){new Thread(new Runnable() {
            @Override
            public void run() {web.dxcPx();
            }
        }).start();}
       
}

}