Android-使用 HttpResponse 連線時 一直回應 401

不知道各位大大是否有發生過執行連線，但回應是FileNotFoundException
message : java.io.FileNotFoundException: http://XXX.XXX.XXX.XXX/XXXXX
或者回應401的情況
之後大概查詢有關401的基本意思 : 必須要使用者資訊
如下 :

我們要做的動作就是執行連結時，也必須要把使用者資訊也一起帶進去

            BufferedReader rd = null;
            try {
                URL url = new URL(urlString);
                HttpURLConnection httpconn = (HttpURLConnection) url
                        .openConnection();
                String authCombination = "admin" + ":" + "admin";
                String accountCode = Base64.encodeToString(authCombination.getBytes(),
                        Base64.DEFAULT);
                httpconn.setRequestProperty("Authorization", "Basic "+ accountCode);
                httpconn.setConnectTimeout(4000);
                httpconn.setReadTimeout(4000);
                httpconn.connect();
                rd = new BufferedReader(new InputStreamReader(
                        httpconn.getInputStream()));
                int returnCode = httpconn.getResponseCode();
                if (returnCode == 200) {
                    
                } else {
                   
                }
            } catch (MalformedURLException e) {
                
            } catch (IOException e) {
               
            } finally {
                try {
                    if (rd != null)
                        rd.close();
                } catch (IOException e) {
                   
                }
            }

歡迎轉載，請註明出處 。