Home/ Questions/Q 5928003
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-22T14:14:35+00:00

AFAIK HttpURLConnection doesn’t actually send the request out until we attempt to read the

  • 0

AFAIK HttpURLConnection doesn’t actually send the request out until we attempt to read the input. However, if an exception happens here I can’t differentiate between the case where the request was not sent, and the case where the request was sent but some other sort of error occurred (maybe we entered a tunnel so couldn’t receive the response).

Is there a way to query and find out if the request was actually sent or not?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You might have some luck with 

    URL url = new URL(serverUrl);
connection = (HttpURLConnection) url.openConnection();
// write to connection output stream (don't forget to flush())
connection.getResponseCode();

    You can get a full list of response codes at http://download.oracle.com/javase/1,5.0/docs/api/java/net/HttpURLConnection.html

    Having said that I can imagine your data going out completely an instant before you enter a tunnel and the connection not having a response code set, in which case you would try to send again (perhaps using a unique ‘send id’) so that the listener knows to ignore you resend but can still let you know that it was received.

    • 0