伪造一个IP地址来访问网站数据

public class QueryKuaiDiFetch {
    public static final String QUERYURL = "http://www.kuaidi100.com/query?";

    public static String setUrl(String logisticsCode, String logisticsNo) {
        String temp = String.valueOf(Math.random());
        StringBuilder sb = new StringBuilder(QUERYURL);
        sb.append("tpye=").append(logisticsCode).append("&");
        sb.append("postid=").append(logisticsNo).append("&");
        sb.append("temp=").append(temp);
        return sb.toString();
    }

    public static String queryData(String num, Integer com) {
        String line = "";
        String temp = String.valueOf(Math.random());
        String logisticsCode = "";
        if (com == 0) {
            logisticsCode = "shentong";
        } else {
            logisticsCode = "zhongtong";
        }
        String url = "http://www.kuaidi100.com/query?type=" + logisticsCode + "&postid=" + num + "&temp=" + temp + "&order=asc";
        try {
            URL realURL = new URL(url);
            HttpURLConnection conn = (HttpURLConnection) realURL.openConnection();
            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("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36");
            conn.connect();
            int responseCode = conn.getResponseCode();
            if (responseCode == HttpURLConnection.HTTP_OK) {
                InputStream inputStream = conn.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                while ((line = reader.readLine()) != null) {
                    System.out.println(line);
                    return line;
                }
                reader.close();
                conn.disconnect();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return line;
    }

    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);
    }
}

工作忙，但还是要记得点外卖哦

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我刚做的小程序哦，欢迎交流程序问题哦～