Java模拟HTTP Get Post请求 轻松实现校园BBS自动回帖

本文实例为大家分享了Java模拟HTTP Get Post请求，校园BBS自动回帖功能，供大家参考，具体内容如下

设计思路

找到帖子链接的集合，最后面数字变化, 就可以得到不同的帖子

防止帖子发表会又被删了的情况, 进行判断帖子是否存在

遍历这个集合, 对每个链接做回帖的POST请求

重难点

Note:

• 回帖需要用户登录信息
• 一种是利用Cookie
• 另一种是进行模拟登录
• 本文采用前者

代码

代码比较简单，注意事项是找到自己的Cookie，赋给String yourCookeie就可以直接运行

主要就是判断帖子存不存在，这是一个get请求，然后用post发送一个回帖，回帖信息在mapData.put(“message”, “友情帮顶了”)中 硬编码为”友情帮顶了”，你可以修改

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(); }}

效果图

以上就是本文的全部内容，希望对大家的学习有所帮助，实现帖子自动回复。