我有以下用于 url 连接的代码,它引发异常但异常对象为空。如何在android 2.2中毫无例外地连接到一个url
HttpURLConnection urlConnection= null;
URL url = null;
try
{
url = new URL(urlString.toString());
urlConnection=(HttpURLConnection)url.openConnection();
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
urlConnection.setDoInput(true);
urlConnection.connect();
}
catch(Exception ex)
{//ex is empty here}