import java.util.concurrent.ExecutorService;

import java.util.concurrent.Executors;

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpStatus;

import org.apache.commons.httpclient.cookie.CookiePolicy;

import org.apache.commons.httpclient.methods.GetMethod;

public class Test {

    private static volatile int number = 0;

    private static final String url ="http://blog.csdn.net/chinacsharper/article/details/17514923"; 

    /**

     * @param args

     */

    public static void main(String[] args) {

        //简单的用一个线程池

        ExecutorService es = Executors.newFixedThreadPool(30);

        //线程的个数应该根据自家的网络来定.我家是10M网所以20个基本上就是上限了.

        for(int i=0;i<20;i++){

             Runnable r = new Runnable() {

                    public void run() {

                        refreshBlog();

                    }

            };

            es.submit(r);

        }

    }

    /**

        * refreshBlog 这个方法是相应请求

        * @author heinz_ho

        * @return void

        */

       public static  void refreshBlog(){

         HttpClient httpClient = new HttpClient();

         GetMethod getMethod = new GetMethod(url);

         getMethod.setRequestHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.99 Safari/537.36 LBBROWSER");

         //其实这里我也不太懂.我只是知道cookie的生成策略,但是因为 csdn会判断力过来的cookie是啥.必须加.

         getMethod.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);

         //偷懒就用了一个死循环

         while(true) {

               try {

                //这句话会造成阻塞因为想网络发起请求.

                   int statusCode = httpClient.executeMethod(getMethod);

                   if (statusCode != HttpStatus.SC_OK) {

                       System.out.print("失败：" + getMethod.getStatusLine());

                   }

                   System.out.println("你已经刷新了:"+number++);

               } catch (Exception e) {

                   System.out.print("请检查网络地址！");

               } finally {

                   getMethod.releaseConnection();

               }

         }

       }  

}