ColdFusion automatically flushes any cached page if you change the code on the page. It also automatically flushes pages after the expiration timespan passes.
You can use the cfcache tag with the action="flush" attribute to immediately flush one or more cached pages. You can optionally specify the directory that contains the cached pages to be flushed and a URL pattern that identifies the pages to flush. If you do not specify a URL pattern, all pages in the directory are flushed. The URL pattern can include asterisk (*) wildcards to specify parts of the URL that can vary.
When you use the cfcache tag to flush cached pages, ColdFusion deletes the pages cached on the server. If a flushed page is cached on the client system, it is deleted, and a new copy gets cached, the next time the client tries to access the ColdFusion page.
The following example flushes all the pages in the e:/temp/page_cache/monthly directory that start with HR:
<cfcache action="flush" directory="e:/temp/page_cache/monthly" expirURL="HR*">
If you have a ColdFusion page that updates data you use in cached pages, the page that does the updating includes a cfcache tag that flushes all pages that use the data.
For more information on the cfcache tag, see CFML Reference.
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