安卓URLConnection.getInputStream協議異常

我試圖下載從URL的音頻文件，這裏是代碼安卓URLConnection.getInputStream協議異常

try { 

      URL url = new URL(urll); 
      File extStore = Environment.getExternalStorageDirectory(); 
      File file = new File(extStore, "disk.wav"); 

      long startTime = System.currentTimeMillis(); 
      Log.d("ImageManager", "download begining"); 
      Log.d("ImageManager", "download url:" + url); 
      Log.d("ImageManager", "downloaded file name:" + "disk.wav"); 
      URLConnection ucon = url.openConnection(); 
      ((HttpURLConnection) ucon).setRequestMethod("GET"); 
      ucon.setDoInput(false); 
      ucon.connect(); 
      InputStream is = ucon.getInputStream(); 
      BufferedInputStream bis = new BufferedInputStream(is); 

      ByteArrayBuffer baf = new ByteArrayBuffer(50); 
      int current = 0; 
      while ((current = bis.read()) != -1) { 
       baf.append((byte) current); 
      } 

      /* Convert the Bytes read to a String. */ 
      FileOutputStream fos = new FileOutputStream(file); 
      fos.write(baf.toByteArray()); 
      fos.close(); 
      Log.d("ImageManager", "download ready in" + ((System.currentTimeMillis() - startTime)/1000) + " sec"); 

      mediaPlayer.reset(); 
      mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); 
      mediaPlayer.setDataSource(Environment.getExternalStorageDirectory().getPath() + "/disk.wav"); 
      mediaPlayer.start(); 

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

當到達這條線

：

InputStream is = ucon.getInputStream();

它拋出：

java.net.ProtocolException: This protocol does not support input

我有HttpURLConnection的嘗試，但沒有運氣任何一個有線索AB發生了什麼事感謝所有

來源

2013-10-25 El Jazouli

要設置做輸入到假'ucon.setDoInput（假）'，然後試圖讀取inutstream ..請把它設置爲true'ucon.setDoInput（true）;'。如果這仍然不起作用，你使用什麼樣的URL ..？它被設置爲true時爲 –

;我得到FileNotFoundException在 URLConnection ucon = url.openConnection（）; –

你能分享你正在使用的網址嗎？你可以嘗試在瀏覽器上的URL來檢查它是否工作？ –

-1

試着這樣做：

URL myUrl = new URL(/*Your Url String*/); 
HttpUrlConnection mCon = (HttpUrlConnection)mCon.openConnection(); 
InputStream in = mCon.connect();

來源

2013-10-25 17:55:22

我不相信你可以做InputStream in = mCon.connect（）; mCon.connect（）返回void –

你可以.. mCon.setDoInput（true）; –

我的錯誤...做con.getInputStream（）;當setDoInput設置爲true時爲 –

安卓URLConnection.getInputStream協議異常

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