Java模擬HTTP Get Post請求輕鬆實現校園BBS自動回帖

本文實例為大家分享了Java模擬HTTP Get Post請求，校園BBS自動回帖功能，供大家參考，具體內容如下

設計思路

找到帖子鏈接的集合，最後面數字變化, 就可以得到不同的帖子

防止帖子發表會又被刪了的情況, 進行判斷帖子是否存在

遍歷這個集合, 對每個鏈接做回帖的POST請求

重難點

Note:

• 回帖需要用戶登錄信息
• 一種是利用Cookie
• 另一種是進行模擬登錄
• 本文采用前者

代碼

代碼比較簡單，注意事項是找到自己的Cookie，賦給String yourCookeie就可以直接運行

主要就是判斷帖子存不存在，這是一個get請求，然後用post發送一個回帖，回帖信息在mapData.put(“message”, “友情幫頂了”)中硬編碼為”友情幫頂了”，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，指定的主題不存在或已被刪除或正在被審核")) { System.out.println("id=" + id + "帖子存在或已被刪除！"); 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", "友情幫頂了"); 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 + "成功發帖！"); 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(); }}

效果圖

以上就是本文的全部內容，希望對大家的學習有所幫助，實現帖子自動回复。