在android上上传图片

我现在处于一个奇怪的问题。我一直在尝试从我的Android应用程序上传图像到服务器，然而，它工作正常，当我使用WiFi连接，但是当我在GPRS应用程序只是继续处理无限的时间。下面是代码：在android上上传图片

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()); 
    }

这是明显的，我使用相同的代码上传文本文件的正常工作，甚至对GPRS，我试图缩小它和我的应用程序进入问题右侧前我上传图片时的getResponse（）方法。

来源

2011-09-30 Raza Gill

显然，重新安装sdk后问题消失了。

来源

2012-07-28 23:20:34

你是从一个活动内部做到这一点吗？

使用的服务，并把它放在一个的AsyncTask

带wifi，有很少或几乎没有延迟。对于单元网络来说，有很多延迟，所以你的请求很可能会阻塞UI线程。

来源

2011-09-30 11:12:28

我正在使用processDialog，而这段代码实际上是在一个单独的线程中。说到getResponse（），它只是挂在LogCat中。模拟器中的其他一切工作正常，如果我点击home等，但如果我回到应用程序它仍然处理，并在LogCat中，我从应用程序中看到的最后一条消息就在getResponse（）方法的上方。 –

在android上上传图片

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