android - Android2.2 url连接异常

Question

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}

Answer 1

我认为启用输出时不喜欢获取请求。在这种情况下，您不应设置：

urlConnection.setDoOutput(true);