如何在將圖片發佈到服務器時得到回覆

Question

我使用此代碼將圖片從我的SD卡上傳到服務器deviantart.com。
我使用post方法;該服務器支持上傳圖片和響應圖片的URL：

public int uploadFile(String sourceFileUri) { 

     String fileName = sourceFileUri; 

     HttpURLConnection conn = null; 
     DataOutputStream dos = null; 
     String lineEnd = "\r\n"; 
     String twoHyphens = "--"; 
     String boundary = "*****"; 
     int bytesRead, bytesAvailable, bufferSize; 
     byte[] buffer; 
     int maxBufferSize = 1 * 1024 * 1024; 
     File sourceFile = new File(sourceFileUri); 

     if (!sourceFile.isFile()) { 

      dialog.dismiss(); 

      Log.e("uploadFile", "Source File not exist :" 
           +uploadFilePath + "" + uploadFileName); 

      runOnUiThread(new Runnable() { 
       public void run() { 
        messageText.setText("Source File not exist :" 
          +uploadFilePath + "" + uploadFileName); 
       } 
      }); 

      return 0; 

     } 
     else 
     { 
      try { 

       // open a URL connection to the Servlet 
       FileInputStream fileInputStream = new FileInputStream(sourceFile); 
       URL url = new URL(upLoadServerUri); 

       // Open a HTTP connection to the URL 
       conn = (HttpURLConnection) url.openConnection(); 
       conn.setDoInput(true); // Allow Inputs 
       conn.setDoOutput(true); // Allow Outputs 
       conn.setUseCaches(false); // Don't use a Cached Copy 
       conn.setRequestMethod("POST"); 
       conn.setRequestProperty("Connection", "Keep-Alive"); 
       conn.setRequestProperty("ENCTYPE", "multipart/form-data"); 
       conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary); 
       conn.setRequestProperty("uploaded_file", fileName); 

       dos = new DataOutputStream(conn.getOutputStream()); 

       dos.writeBytes(twoHyphens + boundary + lineEnd); 
       dos.writeBytes("Content-Disposition: form-data; name=\"uploaded_file\";filename=\"" 
             + fileName + "\"" + lineEnd); 

       dos.writeBytes(lineEnd); 

       // create a buffer of maximum size 
       bytesAvailable = fileInputStream.available(); 

       bufferSize = Math.min(bytesAvailable, maxBufferSize); 
       buffer = new byte[bufferSize]; 

       // read file and write it into form... 
       bytesRead = fileInputStream.read(buffer, 0, bufferSize); 

       while (bytesRead > 0) { 

       dos.write(buffer, 0, bufferSize); 
       bytesAvailable = fileInputStream.available(); 
       bufferSize = Math.min(bytesAvailable, maxBufferSize); 
       bytesRead = fileInputStream.read(buffer, 0, bufferSize); 


       } 

       // send multipart form data necesssary after file data... 
       dos.writeBytes(lineEnd); 
       dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd); 

       // Responses from the server (code and message) 

       serverResponseCode = conn.getResponseCode(); 
       String serverResponseMessage = conn.getResponseMessage(); 

       Log.i("uploadFile", "HTTP Response is : " 
         + serverResponseMessage + ": " + serverResponseCode); 

       if(serverResponseCode == 200){ 

        runOnUiThread(new Runnable() { 
          public void run() { 
//        
//        String msg = "File Upload Completed.\n\n See uploaded file here : \n\n" 
//           +" http://www.androidexample.com/media/uploads/" 
//           +uploadFileName; 

//        messageText.setText(msg); 
           Toast.makeText(UploadToServer.this, "File Upload Complete.", 


         Toast.LENGTH_SHORT).show(); 
         } 
        });     
       }  

       //close the streams // 
       fileInputStream.close(); 
       dos.flush(); 
       dos.close(); 

      } catch (MalformedURLException ex) { 

       dialog.dismiss(); 
       ex.printStackTrace(); 

       runOnUiThread(new Runnable() { 
        public void run() { 
         messageText.setText("MalformedURLException Exception : check script url."); 
         Toast.makeText(UploadToServer.this, "MalformedURLException", Toast.LENGTH_SHORT).show(); 
        } 
       }); 

       Log.e("Upload file to server", "error: " + ex.getMessage(), ex); 
      } catch (Exception e) { 

       dialog.dismiss(); 
       e.printStackTrace(); 

       runOnUiThread(new Runnable() { 
        public void run() { 
         messageText.setText("Got Exception : see logcat "); 
         Toast.makeText(UploadToServer.this, "Got Exception : see logcat ", 
           Toast.LENGTH_SHORT).show(); 
        } 
       }); 
       Log.e("Upload file to server Exception", "Exception : " 
               + e.getMessage(), e); 
      } 
      dialog.dismiss();  
      return serverResponseCode; 

     } // End else block 
    } 

響應碼= 200

但我希望得到一個字符串響應（圖片的URL）;我不知道如何獲得字符串響應

謝謝！

Answer 1

try 
{ 
     inStream = new DataInputStream (conn.getInputStream()); 
     String str; 
     while ((str = inStream.readLine()) != null) 
     { 
      String yourmessage = str; 
     } 
     inStream.close(); 
} 
catch (IOException ioex) 
{ 
    Log.e("SD card doFile upload error: ",""+ ioex.getMessage());  
} 

你應該得到的字符串中的返回數據「yourmessage」

Answer 2

使用方法getInputStream中檢索返回的流。

try { 
InputStream in = new BufferedInputStream(conn.getInputStream()); 
readStream(in); // here you can read the stream and extract your url 
finally { 
conn.disconnect(); 
}