Java模拟HTTP Get Post请求 轻松实现校园BBS自动回帖

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.LinkedHashMap;
import java.util.Map;

public class Inter {

  private static final String baseRefer = "http://rs.xidian.edu.cn/forum.php?mod=viewthread&tid=";

  private static final String yourCookeie = "Q8qA_2132_saltkey=g1NJjJ3O; Q8qA_2132_lastvisit=1438243699; Q8qA_2132_lastcheckfeed=256730%7C1438252008; Q8qA_2132_auth=e11aEhhXpLgTYpfDK72YJZEgJHL1v70cUXXDtJ71VbU2dyuH%2BQHw3pGOJhsFxfjbVgNsvyfG1v%2BQlD0lt8kg6J%2B40W0; Q8qA_2132_st_t=256730%7C1438571068%7C51f8a322985e44f65ff1143329e6779a; Q8qA_2132_forum_lastvisit=D_106_1438571068; Q8qA_2132_myrepeat_rr=R0; Q8qA_2132_ulastactivity=d7degfMAwG5AGHshmT%2BwCq1L91znQpEa57p%2F0Vt7VHdC8DrOuGTT; Q8qA_2132_home_diymode=1; tjpctrl=1438781938176; Q8qA_2132_visitedfid=72D551D215D110D13D142D22D91D217D548; Q8qA_2132_st_p=256730%7C1438781224%7C7a73ef608dc3caf733308d63639b3bd0; Q8qA_2132_viewid=tid_773850; Q8qA_2132_smile=10D1; Q8qA_2132_sid=ZnfqQN; Q8qA_2132_lastact=1438781403%09forum.php%09ajax";

  public static void main(String[] args) {
    int startId = 774210; // you need change

    for (int i = 0; i < 100; i++) {
      postMessage(startId);
      startId++;
    }
  }

  public static boolean isExist(int id) {
    String tmpPath = baseRefer + id;

    URL url;
    try {
      url = new URL(tmpPath);

      HttpURLConnection con = (HttpURLConnection) url.openConnection();
      con.addRequestProperty("Content-Type", "text/html; charset=UTF-8");
      con.addRequestProperty(
          "User-Agent",
          "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.104 Safari/537.36");
      con.addRequestProperty("Referer", "http://t.dianping.com/register");
      con.setRequestMethod("GET");

      if (con.getResponseCode() == 200) {
        InputStream inputStr = con.getInputStream();
        String info = new String(StreamTool.read(inputStr), "UTF-8");
        if (info.contains("抱歉，指定的主题不存在或已被删除或正在被审核")) {
          System.out.println("id=" + id + "帖子存在或已被删除！");
          return false;
        }
      }
    } catch (MalformedURLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    return true;

  }

  public static void postMessage(int id) {
    if (!isExist(id)) {
      return;
    }
    String tmpPath = baseRefer + id;

    StringBuilder path = new StringBuilder(tmpPath);
    Map<String, String> mapData = new LinkedHashMap<String, String>();
    mapData.put("mod", "post");
    mapData.put("action", "reply");
    mapData.put("replysubmit", "yes");
    mapData.put("infloat", "yes");
    mapData.put("handlekey", "fastpost");
    mapData.put("inajax", "1");
    mapData.put("message", "友情帮顶了");
    mapData.put("formhash", "86ec5d81");
    try {
      for (Map.Entry<String, String> mapEnt : mapData.entrySet()) {
        path.append("&");
        path.append(mapEnt.getKey() + "=");
        path.append(URLEncoder.encode(mapEnt.getValue(), "UTF-8"));
      }

      URL url = new URL(path.toString());
      HttpURLConnection con = (HttpURLConnection) url.openConnection();
      con.setRequestMethod("POST");
      con.setRequestProperty("Content-Type",
          "application/x-www-form-urlencoded");
      con.setRequestProperty("Content-Length",
          String.valueOf(path.length()));
      con.setRequestProperty(
          "User-Agent",
          "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.104 Safari/537.36");
      con.setRequestProperty("Cookie", yourCookeie);
      con.setDoOutput(true);
      OutputStream outStr = con.getOutputStream();
      outStr.write(path.toString().getBytes());

      if (con.getResponseCode() == 200) {
        InputStream inputStr = con.getInputStream();
        String info = new String(StreamTool.read(inputStr), "UTF-8");
        System.out.println("在id=" + id + "成功发帖！");
        try {
          Thread.sleep(20 * 1000);
        } catch (InterruptedException e) {
          // TODO Auto-generated catch block
          e.printStackTrace();
        }
      }

    } catch (UnsupportedEncodingException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (MalformedURLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }

  }
}

class StreamTool {

  public static byte[] read(InputStream inputStr) throws Exception {
    ByteArrayOutputStream outStr = new ByteArrayOutputStream();
    // TODO Auto-generated method stub
    byte[] buffer = new byte[1024];
    int len = 0;
    while ((len = inputStr.read(buffer)) != -1) {
      outStr.write(buffer, 0, len);
    }
    inputStr.close();
    return outStr.toByteArray();
  }

}