drcarter의 DevLog

private InputStream openConnectionCheckRedirects(URLConnection c) throws IOException 
{
   boolean redir;
   int redirects = 0;
   InputStream in = null;
   do 
   {
      if (c instanceof HttpURLConnection) 
      {
         ((HttpURLConnection) c).setInstanceFollowRedirects(false);
      }
      in = c.getInputStream(); 
      redir = false; 
      if (c instanceof HttpURLConnection) 
      {
         HttpURLConnection http = (HttpURLConnection) c;
         int stat = http.getResponseCode();
         if (stat >= 300 && stat <= 307 && stat != 306 &&
            stat != HttpURLConnection.HTTP_NOT_MODIFIED) 
         {
            URL base = http.getURL();
            String loc = http.getHeaderField("Location");
            URL target = null;
            if (loc != null) 
            {
               target = new URL(base, loc);
            }
            http.disconnect();
            if (target == null || !(target.getProtocol().equals("http")
               || target.getProtocol().equals("https"))
               || redirects >= 5)
            {
               throw new SecurityException("illegal URL redirect");
            }
            redir = true;
            c = target.openConnection();
            redirects++;
         }
      }
   } 
   while (redir);
   return in;
}

public void makeConnection(URL url){
   URLConnection conn = url.openConnection();
   InputStream is = openConnectionCheckRedirects(conn);

   /* request에 대한 결과 처리 부분*/

   is.close();
}

이런식으로 하면 되겠습니다. 서버에서 제공하는 api가 redirect된 주소로 해서 보내주는 경우가 많기에... 이 방법을 써서 해결하게 되었습니다.

try {
    // Construct data
    String data = URLEncoder.encode("key1", "UTF-8") + "=" + URLEncoder.encode("value1", "UTF-8");
    data += "&" + URLEncoder.encode("key2", "UTF-8") + "=" + URLEncoder.encode("value2", "UTF-8");

    // Send data
    URL url = new URL("http://address/");
    URLConnection conn = url.openConnection();
    conn.setDoOutput(true);
    OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
    wr.write(data);
    wr.flush();

    // Get the response
    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
    String line;
    while ((line = rd.readLine()) != null) {
        // Process line...
    }
    wr.close();
    rd.close();
} catch (Exception e) {
}