在ASP.NET MVC中调用任何控制器操作之前处理cookie

using System.Web.Mvc;

public class CookieFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        // 在控制器操作执行之前处理cookie
        var request = filterContext.HttpContext.Request;
        
        // 获取cookie值
        var cookieValue = request.Cookies["cookieName"]?.Value;
        
        // 处理cookie逻辑
        // ...
        
        base.OnActionExecuting(filterContext);
    }
}

[CookieFilter]
public class HomeController : Controller
{
    public ActionResult Index()
    {
        // 控制器操作逻辑
        // ...
        
        return View();
    }
}