Java启用数据采集：

package com.tuniu.fcm.facade.IPProxy;

import com.alibaba.fastjson.JSONObject;

import org.jsoup.Jsoup;

import org.jsoup.nodes.Document;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

/**

 * 获取网站解锁，需要

 * com.alibaba.fastjson.JSONObject以及Jsoup

 */

public class ProxyCralwerUnusedVPN {

  ThreadLocal<Integer> localWantedNumber = new ThreadLocal<Integer>();

  ThreadLocal<List<ProxyInfo>> localProxyInfos = new ThreadLocal<List<ProxyInfo>>();

  public static void main(String[] args) {

    ProxyCralwerUnusedVPN proxyCrawler = new ProxyCralwerUnusedVPN();

    /**

     * 想要获取的网站解锁个数，由需求方自行指定。（如果个数太多，将导致返回变慢）

     */

    proxyCrawler.startCrawler(1);

  }

  /**

   * 暴露给外部模块调用的入口

   * @param wantedNumber 调用方期望获取到的网站解锁个数

   */

  public String startCrawler(int wantedNumber) {

    localWantedNumber.set(wantedNumber);

    kuaidailiCom("http://www.xicidaili.com/nn/", 15);

    kuaidailiCom("http://www.xicidaili.com/nt/", 15);

    kuaidailiCom("http://www.xicidaili.com/wt/", 15);

    kuaidailiCom("http://www.kuaidaili.com/free/inha/", 15);

    kuaidailiCom("http://www.kuaidaili.com/free/intr/", 15);

    kuaidailiCom("http://www.kuaidaili.com/free/outtr/", 15);

    /**

     * 构造返回数据

     */

    ProxyResponse response = new ProxyResponse();

    response.setSuccess("true");

    Map<String, Object> dataInfoMap = new HashMap<String, Object>();

    dataInfoMap.put("numFound", localProxyInfos.get().size());

    dataInfoMap.put("pageNum", 1);

    dataInfoMap.put("proxy", localProxyInfos.get());

    response.setData(dataInfoMap);

    String responseString = JSONObject.toJSON(response).toString();

    System.out.println(responseString);

    return responseString;

  }

  private void kuaidailiCom(String baseUrl, int totalPage) {

    String ipReg = "\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3} \\d{1,6}";

    Pattern ipPtn = Pattern.compile(ipReg);

    for (int i = 1; i < totalPage; i++) {

      if (getCurrentProxyNumber() >= localWantedNumber.get()) {

        return;

      }

      try {

        Document doc = Jsoup.connect(baseUrl + i + "/")

            .header("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8")

            .header("Accept-Encoding", "gzip, deflate, sdch")

            .header("Accept-Language", "zh-CN,zh;q=0.8,en;q=0.6")

            .header("Cache-Control", "max-age=0")

            .header("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36")

            .header("Cookie", "Hm_lvt_7ed65b1cc4b810e9fd37959c9bb51b31=1462812244; _gat=1; _ga=GA1.2.1061361785.1462812244")

            .header("Host", "www.kuaidaili.com")

            .header("Referer", "http://www.kuaidaili.com/free/outha/")

            .timeout(30 * 1000)

            .get();

        Matcher m = ipPtn.matcher(doc.text());

        while (m.find()) {

          if (getCurrentProxyNumber() >= localWantedNumber.get()) {

            break;

          }

          String[] strs = m.group().split(" ");

          if (checkProxy(strs[0], Integer.parseInt(strs[1]))) {

            System.out.println("获取到可用网站解锁\t" + strs[0] + "\t" + strs[1]);

            addProxy(strs[0], strs[1], "http");

          }

        }

      } catch (Exception e) {

        e.printStackTrace();

      }

    }

  }

  private static boolean checkProxy(String ip, Integer port) {

    try {

      //http://1212.ip138.com/ic.asp 可以换成任何比较快的网页

      Jsoup.connect("http://1212.ip138.com/ic.asp")

          .timeout(2 * 1000)

          .proxy(ip, port)

          .get();

      return true;

    } catch (Exception e) {

      return false;

    }

  }

  private int getCurrentProxyNumber() {

    List<ProxyInfo> proxyInfos = localProxyInfos.get();

    if (proxyInfos == null) {

      proxyInfos = new ArrayList<ProxyInfo>();

      localProxyInfos.set(proxyInfos);

      return 0;

    }

    else {

      return proxyInfos.size();

    }

  }

  private void addProxy(String ip, String port, String protocol){

    List<ProxyInfo> proxyInfos = localProxyInfos.get();

    if (proxyInfos == null) {

      proxyInfos = new ArrayList<ProxyInfo>();

      proxyInfos.add(new ProxyInfo(ip, port, protocol));

    }

    else {

      proxyInfos.add(new ProxyInfo(ip, port, protocol));

    }

  }

}

class ProxyInfo {

  private String userName = "";

  private String ip;

  private String password = "";

  private String type;

  private String port;

  private int is_internet = 1;

  public ProxyInfo(String ip, String port, String type) {

    this.ip = ip;

    this.type = type;

    this.port = port;

  }

  public String getUserName() {

    return userName;

  }

  public void setUserName(String userName) {

    this.userName = userName;

  }

  public String getIp() {

    return ip;

  }

  public void setIp(String ip) {

    this.ip = ip;

  }

  public String getPassword() {

    return password;

  }

  public void setPassword(String password) {

    this.password = password;

  }

  public String getType() {

    return type;

  }

  public void setType(String type) {

    this.type = type;

  }

  public String getPort() {

    return port;

  }

  public void setPort(String port) {

    this.port = port;

  }

  public int getIs_internet() {

    return is_internet;

  }

  public void setIs_internet(int is_internet) {

    this.is_internet = is_internet;

  }

}

class ProxyResponse {

  private String success;

  private Map<String, Object> data;

  public String getSuccess() {

    return success;

  }

  public void setSuccess(String success) {

    this.success = success;

  }

  public Map<String, Object> getData() {

    return data;

  }

  public void setData(Map<String, Object> data) {

    this.data = data;

  }

}

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