JAVA 编写代码自动在 discuz 7.2 的论坛上发帖子

 

     遇到一个 Powered by discuz 7.2 ！ 的论坛，有积分的限制，很是不爽，发帖可以增加积分，所以花了点时间琢磨弄个自动发帖机，以下是基本的代码和原理说明，要实现自动发帖，循环执行以下代码即可。（注意发帖的时间间隔限制）

 

package com.ldq;

import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

public class MyNewTopic {

	private static URL url;
	private static HttpURLConnection con;
	private static String temp;
	private static InputStream is;
	private static byte[] b;
	private static int pos;
	private static String cookie_sid;
	private static String cookie_auth;
	private static String my_cookie;
	private static String login_formhash;
	private static String post_formhash;
	private static String user = "test";// 用户名
	private static String pass = "test";// 密码
	private static String new_fid = "11";// 版块 ID
	private static String subject = "新主题";// 标题
	private static String msg = "这里是新主题的内容";// 帖子内容

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {

			// 获取 cookie_sid 和 login_formhash --------------------
			url = new URL("http://192.168.72.130/bbs/logging.php?action=login");
			con = (HttpURLConnection) url.openConnection();
			if (con.getResponseCode() == HttpURLConnection.HTTP_OK) {
				// 获取服务器发给客户端的 Cookie
				temp = con.getHeaderField("Set-Cookie");
				System.out.println("Set-Cookie:" + temp);
				// 取 Cookie 前面的部分就可以了，后面是过期时间、路径等，不用管它
				cookie_sid = temp.substring(0, 14);
				System.out.println(cookie_sid);

				is = con.getInputStream();
				b = new byte[is.available()];
				is.read(b);
				// 服务器会返回一个页面，此页面中包含 formhash
				temp = new String(b);
				// 找出这个 formhash 的位置
				pos = temp.indexOf("name=\"formhash\" value=");
				// System.out.println(temp);
				// 找出这个 formhash 的内容，这是登录用的 formhash
				login_formhash = temp.substring(pos + 23, pos + 23 + 8);
				System.out.println("login_formhash:" + login_formhash);
				System.out
						.println("------------------------------------------------------------");
				is.close();
			}

			// 获取cookie_auth -----------------------------------------------
			url = new URL("http://192.168.72.130/bbs/logging.php");
			con = (HttpURLConnection) url.openConnection();

			// 设定以 POST 发送
			con.setRequestMethod("POST");
			// 加入 Cookie 内容
			con.setRequestProperty("Cookie", cookie_sid);
			// 添加 POST 的内容
			con.setDoOutput(true);
			OutputStreamWriter osw = new OutputStreamWriter(con
					.getOutputStream());
			osw
					.write("action=login&loginfield=username&questionid=0&answer=&loginsubmit=yes&formhash="
							+ login_formhash
							+ "&username="
							+ user
							+ "&password=" + pass);
			osw.flush();
			osw.close();

			if (con.getResponseCode() == HttpURLConnection.HTTP_OK) {
				Map<String, List<String>> map = con.getHeaderFields();
				List<String> list = map.get("Set-Cookie");
				for (int i = 0; i < list.size(); i++) {
					temp = list.get(i);
					if (temp.contains("CsN_auth")) {
						System.out.println(temp);
						// 取 Cookie 前面的部分就可以了，后面是过期时间、路径等，不用管它
						cookie_auth = temp.split(";")[0];
						System.out.println("cookie_auth:" + cookie_auth);
					}
				}

				is = con.getInputStream();
				byte[] b = new byte[is.available()];
				is.read(b);
				// System.out.println(new String(b));
				System.out
						.println("------------------------------------------------------------");
				is.close();
			}

			// 正式登录
			url = new URL(
					"http://192.168.72.130/bbs/post.php?action=newthread&fid="
							+ new_fid);
			HttpURLConnection con = (HttpURLConnection) url.openConnection();

			my_cookie = cookie_sid + ";" + cookie_auth;
			System.out.println(my_cookie);
			// 加入 Cookie 内容
			con.setRequestProperty("Cookie", my_cookie);

			if (con.getResponseCode() == HttpURLConnection.HTTP_OK) {
				is = con.getInputStream();
				byte[] b = new byte[is.available()];
				is.read(b);
				temp = new String(b);
				pos = temp.indexOf("id=\"formhash\" value=");
				// System.out.println(temp);
				// 获得发帖用的 formhash
				post_formhash = temp.substring(pos + 21, pos + 21 + 8);
				System.out.println("post_formhash:" + post_formhash);
				System.out
						.println("------------------------------------------------------------");
				is.close();
			}

			// 发新帖子
			url = new URL("http://192.168.72.130/bbs/post.php");
			con = (HttpURLConnection) url.openConnection();

			con.setRequestMethod("POST");
			con.setRequestProperty("Cookie", my_cookie);
			con.setDoOutput(true);
			osw = new OutputStreamWriter(con.getOutputStream());
			temp = "action=newthread&topicsubmit=yes&subject=" + subject
					+ "&formhash=" + post_formhash + "&fid=" + new_fid
					+ "&message=" + msg;
			osw.write(temp);
			osw.flush();
			osw.close();

			if (con.getResponseCode() == HttpURLConnection.HTTP_OK) {
				is = con.getInputStream();
				byte[] b = new byte[is.available()];
				is.read(b);
				// System.out.println(new String(b));
				System.out
						.println("------------------------------------------------------------");
				is.close();
			}

		} catch (Exception e) {
			e.printStackTrace();
		}

	}
}

 

     

      正好 2010-01-06 22:01，太晚了，再不走赶不上末班地铁了，原理下次再发帖详细说明吧。