2016年6月30日 星期四

Android 照片上傳

出處
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 :"+imagepath);
                
               runOnUiThread(new Runnable() {
                   public void run() {
                       messageText.setText("Source File not exist :"+ imagepath);
                   }
               });
                
               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 your server. \n\n";
                                messageText.setText(msg);
                                Toast.makeText(FileUpload.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(FileUpload.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(FileUpload.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
         }

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