public override void OnActionExecuted(ActionExecutedContext filterContext)
{
HttpCachePolicyBase cache = filterContext.HttpContext.Response.Cache;
// 在關閉瀏覽器或者切換使用者時，刪除快取資料 (http://blog.toright.com/posts/3414/初探-http-1-1-cache-機制.html)
cache.SetCacheability(HttpCacheability.Public);
// 在 http response header 裡設 expire time 減少 client 送出 http request (http://fcamel-life.blogspot.tw/2010/06/http-response-header-expire-request.html)
cache.SetExpires(DateTime.Now.AddDays(365)); // HTTP/1.0
// filterContext.HttpContext.Response.Cache.SetValidUntilExpires(true);
cache.SetMaxAge(TimeSpan.FromDays(365)); // HTTP/1.1, Cache-Control: max-age
cache.SetProxyMaxAge(TimeSpan.FromDays(365)); // HTTP/1.1, Cache-Control: s-maxage
cache.SetETagFromFileDependencies();
cache.SetLastModifiedFromFileDependencies();
cache.SetAllowResponseInBrowserHistory(true);
// http://stackoverflow.com/questions/6151292/httpcontext-current-response-cache-setcacheabilityhttpcacheability-nocache-not
// 按下登出按鈕所需要的快取設定
//cache.SetCacheability(HttpCacheability.NoCache);
//cache.SetExpires(DateTime.UtcNow.AddHours(-1));
//cache.SetNoStore();
// http://stackoverflow.com/questions/4078011/how-to-switch-off-caching-for-mvc-requests-but-not-for-static-files-in-iis7
// 關閉 Cache 功能
//cache.SetExpires(DateTime.UtcNow.AddDays(-1));
//cache.SetValidUntilExpires(false);
//cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
//cache.SetCacheability(HttpCacheability.NoCache);
//cache.SetNoStore();
}
protected virtual void SetHttpCachePolicy(HttpCachePolicyBase policy, TemplateInfo info)
{
policy.SetCacheability(info.Cacheability);
policy.SetExpires(DateTime.Now.AddMinutes(info.CacheDuration));
policy.SetMaxAge(TimeSpan.FromMinutes(info.CacheDuration));
policy.SetValidUntilExpires(true);
policy.SetETagFromFileDependencies();
policy.SetLastModifiedFromFileDependencies();
}
/// <summary>
/// Caches the specified instance.
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="duration">The duration.</param>
public static void Cache(this HttpContextBase instance, TimeSpan duration)
{
HttpCachePolicyBase cache = instance.Response.Cache;
cache.SetCacheability(HttpCacheability.Public);
cache.SetOmitVaryStar(true);
cache.SetExpires(instance.Timestamp.Add(duration));
cache.SetMaxAge(duration);
cache.SetValidUntilExpires(true);
cache.SetLastModified(instance.Timestamp);
cache.SetLastModifiedFromFileDependencies();
cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
}
/// <summary>
/// Set the caching policy.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="duration">The duration.</param>
public void Cache(HttpContextBase context, TimeSpan duration)
{
if ((duration > TimeSpan.Zero) || !context.IsDebuggingEnabled) // Do not cache in debug mode.
{
HttpCachePolicyBase cache = context.Response.Cache;
cache.SetCacheability(HttpCacheability.Public);
cache.SetOmitVaryStar(true);
cache.SetExpires(context.Timestamp.Add(duration));
cache.SetMaxAge(duration);
cache.SetValidUntilExpires(true);
cache.SetLastModified(context.Timestamp);
cache.SetLastModifiedFromFileDependencies();
cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
}
}
protected virtual void SetHttpCachePolicy(HttpCachePolicyBase policy, TemplateInfo info)
{
policy.SetCacheability(info.Cacheability);
policy.SetExpires(DateTime.Now.AddMinutes(info.CacheDuration));
policy.SetMaxAge(TimeSpan.FromMinutes(info.CacheDuration));
policy.SetValidUntilExpires(true);
policy.SetETagFromFileDependencies();
policy.SetLastModifiedFromFileDependencies();
}
