Android中使用URL從網絡上獲取data

從一個http server獲取一些文本，大小應該是小於1KB，下載用不了0.1秒，但是使用URL的openStream()獲取這個數據的inputstream要花費5~10秒，代碼如下：

try {
   System.out.println("begin get url");
   URL url = new URL(murl);
   System.out.println("get url success");
   is = url.openStream();
   System.out.println("get inputstream success");
  } catch (MalformedURLException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 解決方法：使用如下方法可以代替，整體延時不超過1秒

  HttpGet httpGet = new HttpGet(murl);
 2   HttpClient httpclient = new DefaultHttpClient();
  // Execute HTTP Get Request
  HttpResponse response = null;
  try {
   response = httpclient.execute(httpGet);
  } catch (ClientProtocolException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
        try {
   InputStream is = response.getEntity().getContent();
  } catch (IllegalStateException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }