HTML Meta Tags to the rescue

EXPIRES:

Example:

< META HTTP-EQUIV="EXPIRES" CONTENT="Mon, 22 Jul 2002 11:12:01 GMT" >

response.setDateHeader("Expires", 0);

The following example sets expiration for 15 seconds

long now = System.currentTimeMillis();

response.setDateHeader("Expires", now + 15000);

Description:

The date and time after which the document should be considered expired. An illegal EXPIRES date, e.g. "0", is interpreted as "now". Setting EXPIRES to 0 may thus be used to force a modification check at each visit.
Web robots may delete expired documents from a search engine, or schedule a revisit.

PRAGMA:

Example:

< META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE" >

response.setHeader("Pragma", "No-cache");

Description:

This directive indicates cached information should not be used and instead requests should be forwarded to the origin server. This directive has the same semantics as the CACHE-CONTROL:NO-CACHE directive and is provided for backwards compatibility with HTTP/1.0.
Clients SHOULD include both PRAGMA:NO-CACHE and CACHE-CONTROL:NO-CACHE when a no-cache request is sent to a server not known to be HTTP/1.1 compliant.

CACHE-CONTROL:

Example:

< META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE" >

response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");

Description:

The directive CACHE-CONTROL:NO-CACHE indicates cached information should not be used and instead requests should be forwarded to the origin server. This directive has the same semantics as the PRAGMA:NO-CACHE.
Clients SHOULD include both PRAGMA:NO-CACHE and CACHE-CONTROL:NO-CACHE when a no-cache request is sent to a server not known to be HTTP/1.1 compliant.

REFRESH:

Example:

< META HTTP-EQUIV="REFRESH"
CONTENT="15;URL=http://www.I18nGuy.com/index.html" >

It keeps on refreshing the page at frequent intervals

Description:

Specifies a delay in seconds before the browser automatically reloads the document. Optionally, specifies an alternative URL to load, making this command useful for redirecting browsers to other pages.

Further reference: Click here