C#中对Cookie的使用

1、增加Cookie的写入方法：/// <summary> /// 写 Cookies /// </summary> /// <param name="cookieName">主键</param> /// <param name="cookieValue">键值</param> /// <param name="hours">有效时间（小时）</param> /// <returns></returns> public static bool SetCookie(string cookieName, string cookieValue, int hours) { try { HttpCookie Cookie = new HttpCookie(cookieName); if (!string.IsNullOrEmpty(Settings.Domain)) Cookie.Domain = Settings.Domain; Cookie.Expires = DateTime.Now.AddHours(hours); Cookie.Value = SecurityHelper.Encrypt(cookieValue); System.Web.HttpContext.Current.Response.Cookies.Add(Cookie); return true; } catch { return false; } }

2、增加Cookie的读取方法：/// <summary> /// 读取Cookies /// </summary> /// <param name="CookieName">主键</param> /// <returns></returns> public static string GetCookie(string CookieName) { HttpCookie Cookie = System.Web.HttpContext.Current.Request.Cookies[CookieName]; if (Cookie != null) { return SecurityHelper.Decrypt(Cookie.Value.ToString()); } else { return null; } }

3、增加对Cookie的删除方法：/// <summary> /// 删除Cookies /// </summary> /// <param name="cookieName">主键</param> /// <returns></returns> public static bool DeleteCookie(string cookieName) { try { HttpCookie Cookie = new HttpCookie(cookieName); if (!string.IsNullOrEmpty(Settings.Domain)) { Cookie.Domain = Settings.Domain; } Cookie.Expires = DateTime.Now.AddDays(-1); System.Web.HttpContext.Current.Response.Cookies.Add(Cookie); return true; } catch { return false; } }

4、增加Cookie的过期时间设置：/// <summary> /// 更新cookie过期时间 /// </summary> /// <param name="cookieName"></param> /// <param name="cookieValue"></param> /// <param name="minutes"></param> public static void ModCookies(string cookieName, string cookieValue, int minutes) { var httpCookie = HttpContext.Current.Response.Cookies[cookieName]; if (httpCookie != null) { httpCookie.Value = cookieValue; httpCookie.Expires = DateTime.Now.AddMinutes(minutes); } }