Java 模拟HTTP Get Post请求 校园BBS自动回帖实现

设计思路

找到帖子链接的集合, “http://rs.xidian.edu.cn/forum.php?mod=viewthread&tid=774210” 最后面774210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

[code]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();
    }

}

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效果图