自动生成IP模拟POST访问后端程序_隨機產生ip發送post-优快云博客

原博客地址：https://blog.youkuaiyun.com/u014001866/article/details/50618915

这边分享一个IP生成器，每次用不同的IP模拟URL的POST提交，对后端进行强访问。

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.Random;

/**
* @author
* @date 2016年1月26日下午4:13:07
*/
public class Test {
   public static void main(String[] args) {
       while (true) {
           String sr = Test
                   .sendPost(
                           "访问路径",
                           "&参数");//a=2222
           System.out.println(sr);
           try {
               Thread.sleep(90000);
           } catch (InterruptedException e) {
               e.printStackTrace();
           }
       }
   }

   public static String sendPost(String url, String param) {
       PrintWriter out = null;
       BufferedReader in = null;
       String result = "";
       try {
           URL realUrl = new URL(url);
           URLConnection conn = realUrl.openConnection();

           // 随机生成ip
           String ip = randIP();
           conn.setRequestProperty("X-Forwarded-For", ip);
           conn.setRequestProperty("HTTP_X_FORWARDED_FOR", ip);
           conn.setRequestProperty("HTTP_CLIENT_IP", ip);
           conn.setRequestProperty("REMOTE_ADDR", ip);
           conn.setRequestProperty("Host", "");
           conn.setRequestProperty("Connection", "keep-alive");
           conn.setRequestProperty("Content-Length", "17");
           conn.setRequestProperty("Accept", "application/json");
           conn.setRequestProperty("Origin", "ORIGIN");
           conn.setRequestProperty(
                   "User-Agent",
                   "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36");
           conn.setRequestProperty("Content-Type",
                   "application/x-www-form-urlencoded");
           conn.setRequestProperty(
                   "Referer",
                   "REFERER");
           conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
           conn.setRequestProperty("Accept-Language",
                   "zh-CN,zh;q=0.8,en;q=0.6,ja;q=0.4,pt;q=0.2");

           conn.setDoOutput(true);
           conn.setDoInput(true);
           out = new PrintWriter(conn.getOutputStream());
           out.print(param);
           out.flush();
           in = new BufferedReader(
                   new InputStreamReader(conn.getInputStream()));
           String line;
           while ((line = in.readLine()) != null) {
               result += line;
           }
       } catch (Exception e) {
           System.out.println("发送 POST 请求出现异常！" + e);
           e.printStackTrace();
       } finally {
           try {
               if (out != null) {
                   out.close();
               }
               if (in != null) {
                   in.close();
               }
           } catch (IOException ex) {
               ex.printStackTrace();
           }
       }
       return result;
   }

   public static String randIP() {
       Random random = new Random(System.currentTimeMillis());
       return (random.nextInt(255) + 1) + "." + (random.nextInt(255) + 1)
               + "." + (random.nextInt(255) + 1) + "."
               + (random.nextInt(255) + 1);
   }

}