判断网络可用状态的一种方法

 

try {
   HttpGet httpGet = new HttpGet(url);
   HttpResponse httpResponse = new DefaultHttpClient()
     .execute(httpGet);
   if (httpResponse.getStatusLine().getStatusCode() == 200) {
    return true;
   } else {
    return false;
   }
  } catch (Exception e) {
   return false;
  }