Enable cache for the entire site of MVC to relieve the request pressure on the server

= Url = extension = (! TimeSpan (, DateTime. UtcNow. AddYears (). ToUniversalTime (). ToString (

The advantage of this is that after a user visits the website for the first time, the cache header will be added to images, scripts, styles, and other static resources. As long as the user does not clear local resources, the browser will automatically determine the validity period of these static resources. If the validity period is not like the request initiated by the server, the request pressure on the cache server will be. However, each time a static resource is updated, the version number must be added to the end to inform the browser that this is a new resource. You should request the server, otherwise, the user will still see the old resource instead of the updated resource.