Httpurlconnection Timeout Settings

HttpURLConnection timeout settings

HttpURLConnection has a setConnectTimeout method.

Just set the timeout to 5000 milliseconds, and then catch java.net.SocketTimeoutException

Your code should look something like this:

try {
   HttpURLConnection.setFollowRedirects(false);
   HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
   con.setRequestMethod("HEAD");

   con.setConnectTimeout(5000); //set timeout to 5 seconds

   return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
} catch (java.net.SocketTimeoutException e) {
   return false;
} catch (java.io.IOException e) {
   return false;
}

How to make HttpURLConnection timeout?

I believe the connectTimeout applies only to the connection itself, i.e. the period before the handshake is completed. For timeout waiting for the server to send the content, try connection.setReadTimeout(1);.

HttpURLConnection timeout defaults

Appears the "default" timeouts for HttpURLConnection are zero which means "no timeout."

Unfortunately, in my experience, it appears using these defaults can lead to an unstable state, depending on what happens with your connection to the server. If you use an HttpURLConnection and don't explicitly set (at least read) timeouts, your connection can get into a permanent stale state. By default. So always set setReadTimeout to "something" or you might orphan connections (and possibly threads depending on how your app runs).

It appears from trial and error that calling setConnectTimeout isn't required because the socket itself seems to have like a 2 minute "connect timeout" built in (at least in OS X).

You may also be able to set a "global default" for the timeouts by adjusting system properties.

Fix/prognosis: always set a readTimeout (even if very large), or use a different client that lets you set SO_KEEPALIVE. The default without these result in threads hanging "forever" without it (when/if they do a read), or on stale sockets sticking around forever...

HTTP URL Connection Timeout

You are sending a HTTP url through HttpsURLConnection. So its making problem. just change your first 2 line. You will get the proper output.

URL url = new URL("http://62.215.226.164/fccsms_P.aspx");
HttpURLConnection con = (HttpURLConnection) url.openConnection();

Setting maximum timeout of java.net.URLConnection

You cannot increase the connect timeout beyond the platform default (contrary to 20 years of Javadoc), and there is no point in doing so. It has no bearing on download times. The only relevant timeout for that is the read timeout.

In any case, if the 'source URL is too slow', merely setting timeouts won't make it any faster.

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