Upload a file Android

gistfile1.txt

public static boolean uploadFile( String sourceFileUri, List<NameValuePair> params){
		  
        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); 
		 int serverResponseCode;
		try { 
             
             // open a URL connection to the Servlet
           FileInputStream fileInputStream = new FileInputStream(sourceFile);
           URL url = new URL(getServerupload());
            
           // 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.writeChars(getQuery(params));
           for (NameValuePair pair : params)
	   	   {
	   	        
		   	    
	           dos.writeBytes(twoHyphens + boundary + lineEnd); 
	           dos.writeBytes("Content-Disposition: form-data; name=\""+pair.getName()+"\"" + lineEnd);
	           dos.writeBytes("Content-Type: text/plain; charset=UTF-8" + lineEnd);
	           dos.writeBytes("Content-Length: " + pair.getValue().length() + lineEnd);
	           dos.writeBytes(lineEnd);
	           dos.writeBytes(pair.getValue() + lineEnd);
	           
	   	   }
           
           dos.writeBytes(twoHyphens + boundary + lineEnd);
           
           dos.writeBytes("Content-Disposition: form-data; name=\"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);
           fileInputStream.close();
           dos.flush();
           dos.close();
           if(serverResponseCode == 200){
               return true;             
           }             
      } catch (Exception e) {
          Log.e("Upload file to server Exception", "Exception : "
                                           + e.getMessage(), e);  
      }
      return false; 
	}