在android上上傳圖片

我現在處於一個奇怪的問題。我一直在嘗試從我的Android應用程序上傳圖像到服務器，然而，它工作正常，當我使用WiFi連接，但是當我在GPRS應用程序只是繼續處理無限的時間。下面是代碼：在android上上傳圖片

try 
    { 
     Log.i(TAG,"publishFileToServer Called..."); 
     FileInputStream fileInputStream = new FileInputStream(new File(filePath)); 
     URL url = new URL(urlServer); 
     System.setProperty("http.keepAlive", "false"); 
     connection = (HttpURLConnection) url.openConnection(); 
     Log.i(TAG,"publishFileToServer Called... 1"); 
     // Allow Inputs & Outputs 
     connection.setDoInput(true); 
     connection.setDoOutput(true); 
     connection.setUseCaches(false); 
     Log.i(TAG,"publishFileToServer Called... 2"); 
     // Enable POST method 
     connection.setRequestMethod("POST"); 
     connection.setRequestProperty("Connection", "Keep-Alive"); 
     connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary); 
     Log.i(TAG,"publishFileToServer Called...3"); 
     outputStream = new DataOutputStream(connection.getOutputStream()); 
     outputStream.writeBytes(twoHyphens + boundary + lineEnd); 
     outputStream.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + filePath +"\"" + lineEnd); 
     outputStream.writeBytes(lineEnd); 
     Log.i(TAG,"publishFileToServer Called...4"); 
     bytesAvailable = fileInputStream.available(); 
     bufferSize = Math.min(bytesAvailable, maxBufferSize); 
     buffer = new byte[bufferSize]; 
     Log.i(TAG,"publishFileToServer Called...5"); 
     // Read file 
     bytesRead = fileInputStream.read(buffer, 0, bufferSize); 
     Log.i(TAG,"publishFileToServer Called...6"); 
     while (bytesRead > 0) 
     { 
      outputStream.write(buffer, 0, bufferSize); 
      bytesAvailable = fileInputStream.available(); 
      bufferSize = Math.min(bytesAvailable, maxBufferSize); 
      bytesRead = fileInputStream.read(buffer, 0, bufferSize); 
     } 
     Log.i(TAG,"publishFileToServer Called...7"); 
     outputStream.writeBytes(lineEnd); 
     outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); 
     Log.i(TAG,"publishFileToServer Called...8"); 
     // Responses from the server (code and message) 
     int serverResponseCode = connection.getResponseCode(); 
     Log.i(TAG,"publishFileToServer: ServerResponseCode = "+serverResponseCode); 
     String serverResponseMessage = connection.getResponseMessage(); 
     Log.i(TAG,"publishFileToServer: ServerResponseMessage = "+serverResponseMessage); 
     Log.i(TAG,"publishFileToServer Called...9"); 
     fileInputStream.close(); 
     outputStream.flush(); 
     outputStream.close(); 
     Log.i(TAG,"publishFileToServer Called...10"); 
    } 
    catch (Exception ex) 
    { 
     Log.e(TAG,"publishFileToServer: "+ex.getMessage()); 
    }

這是明顯的，我使用相同的代碼上傳文本文件的正常工作，甚至對GPRS，我試圖縮小它和我的應用程序進入問題右側前我上傳圖片時的getResponse（）方法。

來源

2011-09-30 Raza Gill

顯然，重新安裝sdk後問題消失了。

來源

2012-07-28 23:20:34

你是從一個活動內部做到這一點嗎？

使用的服務，並把它放在一個的AsyncTask

帶wifi，有很少或幾乎沒有延遲。對於單元網絡來說，有很多延遲，所以你的請求很可能會阻塞UI線程。

來源

2011-09-30 11:12:28

我正在使用processDialog，而這段代碼實際上是在一個單獨的線程中。說到getResponse（），它只是掛在LogCat中。模擬器中的其他一切工作正常，如果我點擊home等，但如果我回到應用程序它仍然處理，並在LogCat中，我從應用程序中看到的最後一條消息就在getResponse（）方法的上方。 –

在android上上傳圖片

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