从 ASP.net Core 中的静态类访问 Cookie

Question

我正在尝试从 Asp.net Core 中的静态类访问 Cookie，到目前为止，我在 Google 上找不到任何有用的主题。有什么建议吗？

我已经在 asp.net 中做到了：

public static string GetString(string Key)
        {
            var format = System.Web.HttpContext.Current.Request.Cookies["Language"];
            if (format == null)
                format = new HttpCookie("Language") { Value = "Fa" };
            ResourceManager rm = new ResourceManager("Ippv.Virtual.Application.Properties." + format.Value,
                Assembly.GetExecutingAssembly());
            return rm.GetString(Key);
        }

如何在 asp.net core 中编写等效的代码？

Answer 1

在 ASP.NET 中，我们可以使用 httpcontext.current 访问 cookie，但在 ASP.NET Core 中，没有 htttpcontext.current。在 ASP.NET Core 中，一切都是解耦和模块化的。Httpcontext 可以从 Request 对象和“Microsoft.AspNetCore.Http”命名空间下的 IHttpContextAccessor 接口访问，并且在应用程序的任何地方都可用。参考以下代码：

 public class TestController : Controller
    {
        private readonly IHttpContextAccessor _httpContextAccessor;

        public TestController(IHttpContextAccessor httpContextAccessor)
        {
            this._httpContextAccessor = httpContextAccessor;
        }
        public  IActionResult Index()
        {
 //read cookie from IHttpContextAccessor  
            string cookieValueFromContext = _httpContextAccessor.HttpContext.Request.Cookies["key"];
            //read cookie from Request object  
            string cookieValueFromReq = Request.Cookies["Key"];
            //set the key value in Cookie  
            Set("kay", "Hello from cookie", 10);
            //Delete the cookie object  
            Remove("Key");
            return View();
        }
        /// <summary>  
        /// Get the cookie  
        /// </summary>  
        /// <param name="key">Key </param>  
        /// <returns>string value</returns>  
        public string Get(string key)
        {
            return Request.Cookies[key];
        }
        /// <summary>  
        /// set the cookie  
        /// </summary>  
        /// <param name="key">key (unique indentifier)</param>  
        /// <param name="value">value to store in cookie object</param>  
        /// <param name="expireTime">expiration time</param>  
        public void Set(string key, string value, int? expireTime)
        {
            CookieOptions option = new CookieOptions();
            if (expireTime.HasValue)
                option.Expires = DateTime.Now.AddMinutes(expireTime.Value);
            else
                option.Expires = DateTime.Now.AddMilliseconds(10);
            Response.Cookies.Append(key, value, option);
        }
        /// <summary>  
        /// Delete the key  
        /// </summary>  
        /// <param name="key">Key</param>  
        public void Remove(string key)
        {
            Response.Cookies.Delete(key);
        }