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Get FileModification/Creation time of a file on a webserver

开发者 https://www.devze.com 2023-01-23 11:22 出处：网络

Howdy, I\'m currentyl new to Java and Android but I would like to write an App which checks a webserver on a particular file. If that file is NEWER than the locally saved file it should go ahead and d

相关专题：android

Howdy, I'm currentyl new to Java and Android but I would like to write an App which checks a webserver on a particular file. If that file is NEWER than the locally saved file it should go ahead and download the file.

Now I've alread开发者_开发百科y got the download in place .. but I don't know how I can check the file on the webserver. Any help would be appreciated! :)

Look into sending your request with an If-Modified-Since header. This makes your request conditional based on the resource you are requesting. If it hasn't been updated since that time, it will return a 304.

See Section 14.25 of this page for more details.