How do you get the modified date of a web resource in Java?
URL url = new URL(urlString);
URLConnection connection = url.openConnection();
connection.connect();
// What now?
views:
26answers:
1
+3
A:
URL url = new URL(urlString);
URLConnection connection = url.openConnection();
connection.connect();
long time = connection.getLastModified();
Returns the value of the last-modified header field. The result is the number of milliseconds since January 1, 1970 GMT.
skaffman
2010-06-22 18:05:19
Indeed. To be clear: this information comes from HTTP [`Last-Modified`](http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.29) header. It's the server's responsibilty to set it. If it's absent, you can't reveal it and it will return 0.
BalusC
2010-06-22 18:06:17
Thanks skaffman and BalusC for the clarification.
hgpc
2010-06-22 18:15:59