Android 如果为空，请检查webservice

我有一个网络服务，我想知道它是否是空的？？ 我想知道怎么做。。如何发送请求并在文本视图中打印响应？？ 我知道必须使用

HttpConnetion

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但是我对这门课感到困惑

DefaultHttpClient httpClient=新的DefaultHttpClient（）； HttpGet-httpPost=新的HttpGet（urlName）

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返回真值？getAttributeCount返回一个int！是的，我知道，但是我使用了一个条件，如果返回0 setText True，那么getPropertyCount（）呢？没有在xmlPullParser中定义！！我如何使用它？？@mihail

       HttpResponse httpResponse = httpClient.execute(httpPost);
       HttpEntity httpEntity = httpResponse.getEntity();
       inputStream = httpEntity.getContent(); 




       BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"), 8);
       StringBuilder stringBuilder = new StringBuilder();
       String line = null;
       if ((line = reader.readLine()) != null) {
       stringBuilder.append(line + "\n");
       Data.servContent=stringBuilder.toString();
       }

       line = reader.readLine();
       inputStream.close();
      } catch (UnsupportedEncodingException e) {
           System.err.print("UnsupportedEncodingException: " + e);
       } catch (ClientProtocolException e) {
       System.err.print("ClientProtocolException: " + e);
       } catch (IOException e) {
       System.err.print("IOException: " + e);
       } catch (Exception e) {
       Log.e("Buffer Error", "Error converting result " + e.toString());
       }