HttpUrlConnection致命错误

Question

public InputStream test() {
        URL url = null;
        try {
            url = new URL("http://www.android.com/");
        } catch (MalformedURLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
       HttpURLConnection urlConnection = null;
    try {
        urlConnection = (HttpURLConnection) url.openConnection();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    InputStream in= null;

       try {
         in = new BufferedInputStream(urlConnection.getInputStream());
       }catch(IOException e){
           e.printStackTrace();
       }
        finally {
         urlConnection.disconnect();
       }
return in;
}

Answer 1

一个针对该异常的快速谷歌将您引到这里：http://developer.android.com/reference/android/os/networkonmainthreadexception.html

其中规定：

应用程序尝试在其主线程上执行网络操作时引发的异常。