How to prevent Android from returning a cached response to my HTTP Request?

Question

I\'m writing a client that is making repeated http requests for xml data that is changing over time. It looks like the Android stack is caching my page requests and returni

Answer 1

Hint: to get the random string

HttpGet request = new HttpGet(url + "?unused=" + UUID.randomUUID().toString());

Answer 2

add a HTTP header:

Cache-Control: no-cache

and see if that works.

Answer 3

Append an unused parameter on the end of the URL:

HttpGet request = new HttpGet(url + "?unused=" + someRandomString());

where someRandomString() probably involves the current time.

It's crude, but it's pretty much guaranteed to work regardless of all the outside factors that can make a "proper" solution fail, like misconfigured or buggy proxies.