在.NET Core中等效的HttpContext.Response.Cache？

Question

我正在尝试重现我在这里找到的以前版本的ASP.NET的东西.

基本上,我希望能够禁用缓存,以便我的客户端始终向服务器查找信息.我为此添加了一个HTML元标记,但是对于已经拥有此信息的客户端,我想尝试在后端处理缓存策略.

帖子提到这样做是为了将缓存策略设置为动作过滤器.

public class NoCacheAttribute : ActionFilterAttribute
{  
public override void OnResultExecuting(ResultExecutingContext filterContext)
{
    filterContext.HttpContext.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(-1));
    filterContext.HttpContext.Response.Cache.SetValidUntilExpires(false);
    filterContext.HttpContext.Response.Cache.SetRevalidation(HttpCacheRevalidation.AllCaches);
    filterContext.HttpContext.Response.Cache.SetCacheability(HttpCacheability.NoCache);
    filterContext.HttpContext.Response.Cache.SetNoStore();

    base.OnResultExecuting(filterContext);
}
}

但是,HttpContext似乎在ASP.NET Core中没有Response.Cache.有没有其他方法可以做到这一点？

谢谢!

Answer 1

您可以直接将相应的响应标头设置为所需的值:

public class NoCacheAttribute : ActionFilterAttribute
{
    public override void OnResultExecuting(ResultExecutingContext filterContext)
    {
        filterContext.HttpContext.Response.Headers["Cache-Control"] = "no-cache, no-store, must-revalidate";
        filterContext.HttpContext.Response.Headers["Expires"] = "-1";
        filterContext.HttpContext.Response.Headers["Pragma"] = "no-cache";

        base.OnResultExecuting(filterContext);
    }
}