通过代理访问URL

import java.io.*;
import java.net.*;
import java.util.*;
import java.util.regex.*;
public class AutoClick
{
    public static int count = 0;
    public static List ipList = new ArrayList();


  

public static void main(String[] args) throws Exception
    {
        String defurl="http://www.baidu.com";
        // 从以下网址获得代理服务器ip列表
        URL url = new URL("http://www.cemsg.com/proxy/");
        if (Math.random() > 0.5)
        {
            url = new URL("http://www.cemsg.com/proxy/2.htm");
        }
        System.out.println("Use proxy list " + url);
        URLConnection conn = url.openConnection();
        BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String str = "";
        StringBuffer sbuf = new StringBuffer();
        while ((str = br.readLine()) != null)
        {
            sbuf.append(str);
        }
        str = sbuf.toString();
        // 从HTML中筛出代理ip和port信息
        Pattern p = Pattern.compile("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}:\\d{2,4}");
        Matcher m = p.matcher(str);
        while (m.find())
        {
            ipList.add(str.substring(m.start(), m.end()));
        }
        // 开一个线程用随机的代理地址访问指定的url
        new Thread(new ClickThread(defurl)).start();
    }
}
class ClickThread implements Runnable
{
    public ClickThread(String urlAddr) {
        this.urlAddr = urlAddr;
    }
    String proxyIP;
    String proxyPort;
    String urlAddr;
    public void run() {
        while (true)
        {
            try
            {
                String[] ipInfos = AutoClick.ipList.get((int) (Math.random() * AutoClick.ipList.size())).toString().split(":");
                System.setProperty("http.proxyHost", ipInfos[0]);
                System.setProperty("http.proxyPort", ipInfos[1]);
                URL url = new URL(urlAddr);
                URLConnection conn = url.openConnection();
                BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
                int rc = 0;
                while (br.readLine() != null)
                {
                    rc++;
                }
                System.out.println("read " + rc);
                br.close();
                AutoClick.count++;
                System.out.println(ipInfos[0] + ":" + ipInfos[1] + " click " + urlAddr + " " + AutoClick.count + " times");
            }
            catch (Exception e)
            {
            }
            try
            {
                Thread.sleep(100);
            }
            catch (Exception e)
            {
            }
        }
    }
} 

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