SMP3.0学习笔记之五 使用OData Native SDK修改数据

作者：穿行印象

 http://blog.sina.com.cn/s/blog_7a9486880101qa3s.html

获取到航班信息之后，如果有满意的航班就需要预定了。于是增加如下界面进行航班的预定：



点击“Book”按钮后会使用OData
SDK创建POST操作所需要的对象，然后向SMP暴露的OData服务发起POST操作：

  public void Book(View v)  

 {  

  this.bookFlight();  

 } 

 private void bookFlight()

 {

  IODataEntry newBookingEntry = new ODataEntry();

  newBookingEntry.putPropertyValue(ConnectivityConstants.AIRLINE_ID, mAirlineID);

  newBookingEntry.putPropertyValue(ConnectivityConstants.CONNECTION_ID, mConnectionID);

  newBookingEntry.putPropertyValue(ConnectivityConstants.FLIGHT_DATE, Utils.formatDate(mFlightDate, mApplication.useJSONFormat()));

  newBookingEntry.putPropertyValue(ConnectivityConstants.CUSTOMER_ID, ConnectivityConstants.DEFAULT_CUSTOMER_ID);

  newBookingEntry.putPropertyValue(ConnectivityConstants.AGENCY_ID, ConnectivityConstants.DEFAUL_AGENCY_ID);

  

  newBookingEntry.putPropertyValue(ConnectivityConstants.BOOKING_DATE, Utils.formatDate(new Date(), mApplication.useJSONFormat()));

  

  try

  {

   IRequest request = RequestBuilderHelper.getInstance().buildPOSTRequest(this, ConnectivityConstants.BOOKING_COLLECTION, newBookingEntry, BOOKING_REQUEST_TAG);

   mApplication.getRequestManager().makeRequest(request);

  }

  catch(Exception e)

  {

   e.printStackTrace();

  }  

 }

一旦调用成功，会触发onSuccess方法：

 

  @Override

 public void onSuccess(IRequest aRequest, IResponse aResponse) {

  final IResponse response = aResponse;

  mMessages = new ArrayList();

  mCurrentRequestTag = aRequest.getRequestTAG();

  if (aRequest.getRequestTAG().equalsIgnoreCase(BOOKING_REQUEST_TAG)) {

   try {

    HttpEntity responseEntity = response.getEntity();

    String responseString = EntityUtils.toString(responseEntity);

    Parser parser = mApplication.getParser();

    mBookingEntries = parser.parseODataEntries(responseString, ConnectivityConstants.FLIGHT_COLLECTION, mApplication.getODataSchema());

    showText();

   } catch (Exception e) {

    e.printStackTrace();

   }

  }  

 }

onSuccess该方法的最后会给出会调用showText()方法，给用户提示预定机票成功，如下图所示：

 



showText()方法代码：

  private void showText()

  {

   Message msg = new Message();    

   mHandler.sendMessage(msg);

  }

    private Handler mHandler = new Handler()

    { 

      public void handleMessage(Message msg)

      { 

         if (mBookingEntries != null)

         {

             String bookingID = mBookingEntries.get(0).getPropertyValu(ConnectivityConstants.BOOKING_ID);

         

              Toast.makeText(getApplicationContext(), "Book Flight Successfully, BookingID:" + bookingID, Toast.LENGTH_LONG).show();

          }

      }; 

    };