CookieHelper

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public class CookieHelper { #region 为Cookie赋值方法 /**/ /// <summary> /// 为Cookie赋值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="Nvc">Cookie值集合</param> /// <param name="days">Cookie日期 0 为无时间限制。浏览器关闭就结束</param> /// <param name="Domain">Cookie站点</param> /// <returns>返回布尔值</returns> public static bool WriteCookie(string CookieName, NameValueCollection Nvc, int days, string Domain) { bool BoolReturnValue = false; if (Nvc != null && !string.IsNullOrEmpty(CookieName)) //判断是否能建Cookie { HttpCookie httpCookie = new HttpCookie(CookieName); for (int i = 0; i < Nvc.Count; i++) { httpCookie.Values.Add(Nvc.GetKey(i),HttpUtility.UrlEncode(Nvc.Get(i))); //将值添入Cookie中 } if (days > 0) { httpCookie.Expires = DateTime.Now.AddDays(days); //设置Cookie有效期 } if (!string.IsNullOrEmpty(Domain)) //判断Cookie站点有效 { httpCookie.Domain = Domain; //设置Cookie站点 } HttpContext.Current.Response.AppendCookie(httpCookie); //添加Cookie BoolReturnValue = true; } return BoolReturnValue; } /// <summary> /// 不限制日期的写cookies 江文海修改 /// </summary> /// <param name="CookieName">cookie名称</param> /// <param name="Nvc">集合</param> /// <returns></returns> public static bool WriteCookieNoDay(string CookieName, NameValueCollection Nvc) { bool BoolReturnValue = false; if (Nvc != null && !string.IsNullOrEmpty(CookieName)) //判断是否能建Cookie { HttpCookie httpCookie = new HttpCookie(CookieName); for (int i = 0; i < Nvc.Count; i++) { httpCookie.Values.Add(Nvc.GetKey(i), Nvc.Get(i)); //将值添入Cookie中 } HttpContext.Current.Response.AppendCookie(httpCookie); //添加Cookie BoolReturnValue = true; } return BoolReturnValue; } /**/ /// <summary> /// 为Cookie赋值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="Nvc">Cookie值集合</param> /// <param name="days">Cookie日期</param> /// <returns>返回布尔值</returns> public static bool WriteCookie(string CookieName, NameValueCollection Nvc, int days) { return WriteCookie(CookieName, Nvc, days, null); } /**/ /// <summary> /// 为Cookie赋值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="Nvc">Cookie值集合</param> /// <returns>返回布尔值</returns> public static bool WriteCookie(string CookieName, NameValueCollection Nvc) { return WriteCookie(CookieName, Nvc, 1, null); } #endregion #region 添加Cookie值 /// <summary> /// 添加Cookie值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="Nvc">Cookie值集合</param> /// <returns></returns> public static bool AddCookie(string CookieName, NameValueCollection Nvc) { bool BoolReturnValue = false; if (Nvc != null && !string.IsNullOrEmpty(CookieName)) //判断是否能建Cookie { for (int i = 0; i < Nvc.Count; i++) { HttpContext.Current.Request.Cookies[CookieName].Values.Add(Nvc.GetKey(i), Nvc.Get(i));//添加Cookie; HttpContext.Current.Response.Cookies[CookieName].Values.Add(Nvc.GetKey(i), Nvc.Get(i));//添加Cookie; } } return BoolReturnValue; } #endregion #region 更新Cookie /**/ /// <summary> /// 更新Cookie /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="Nvc">Cookie值集合</param> /// <returns>bool</returns> public static bool UpdateCookie(string CookieName, NameValueCollection Nvc) { bool BoolReturnValue = false; if (Nvc != null && !string.IsNullOrEmpty(CookieName)) //判断是否能建Cookie { HttpCookie httpCookie = new HttpCookie(CookieName); NameValueCollection NonceNvc = HttpContext.Current.Request.Cookies[CookieName].Values; //得到已有的Cookie值集合 if (NonceNvc != null) //判断Cookie值集合是否为空 { string CookieValue = string.Empty; //------------------------循环判断Cookie值是否存在于新Cookie中，如果存在就予以更新----------------------- for (int i = 0; i < NonceNvc.Count; i++) { CookieValue = NonceNvc.Get(i); for (int y = 0; y < Nvc.Count; y++) { if (NonceNvc.GetKey(i) == Nvc.GetKey(y)) { if (CookieValue != Nvc.Get(y)) { CookieValue = Nvc.Get(y); } break; } } httpCookie.Values.Add(NonceNvc.GetKey(i), CookieValue); //不存在于原Cookie的值，被新加入 CookieValue = string.Empty; } //--------------------------------------------------------------------------------------------------------- HttpContext.Current.Response.AppendCookie(httpCookie); //加入Cookie BoolReturnValue = true; } } return BoolReturnValue; } #endregion #region 得到Cookie值集合 /**/ /// <summary> /// 得到Cookie值集合 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <returns>返回NameValueCollection集合</returns> public static NameValueCollection GetCookie(string CookieName) { NameValueCollection Nvc = new NameValueCollection(); if (!string.IsNullOrEmpty(CookieName) && HttpContext.Current.Request.Cookies[CookieName] != null) //判断Cookie是否存在 { Nvc = HttpContext.Current.Request.Cookies[CookieName].Values; //得到Cookie值集合 } return Nvc; } #endregion #region 删除Cookie /// <summary> /// 删除cookie /// </summary> /// <param name="CookieName">cookie的值</param> /// <param name="CookieDomain">cookie的域</param> /// <returns></returns> public static bool DeleteCookie(string CookieName, string CookieDomain) { bool BoolReturnValue = false; HttpCookie httpCookie = HttpContext.Current.Request.Cookies[CookieName]; if (httpCookie != null) //如果Cookie存在 { if (!string.IsNullOrEmpty(CookieDomain)) { httpCookie.Domain = CookieDomain; } httpCookie.Expires = DateTime.Now.AddDays(-30); //来他个负30天，看他怎么存在 HttpContext.Current.Response.Cookies.Add(httpCookie); BoolReturnValue = true; } return BoolReturnValue; } /**/ /// <summary> /// 删除Cookie /// </summary> /// <param name="CookieName">Cookie名称</param> /// <returns>布尔值</returns> public static bool DeleteCookie(string CookieName) { return DeleteCookie(CookieName, null); } #endregion #region 得到单独一条Cookie的值 /**/ /// <summary> /// 得到单独一条Cookie的值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="KeyName">Key名称</param> /// <returns>返回string</returns> public static string GetSingleValue(string CookieName, string KeyName) { string StrReturnValue = string.Empty; HttpCookie httpCookie = HttpContext.Current.Request.Cookies[CookieName]; if (httpCookie != null) //如果Cookie存在 { StrReturnValue =HttpUtility.UrlDecode(HttpContext.Current.Request.Cookies[CookieName].Values[KeyName]); //得到指定Key的Value } return StrReturnValue; } /**/ /// <summary> /// 得到服务器端单独一条Cookie的值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="KeyName">Key名称</param> /// <returns>返回string</returns> public static string GetSingleValueFromServer(string CookieName, string KeyName) { string StrReturnValue = string.Empty; HttpCookie httpCookie = HttpContext.Current.Response.Cookies[CookieName]; if (httpCookie != null) //如果Cookie存在 { StrReturnValue = HttpContext.Current.Response.Cookies[CookieName].Values[KeyName]; //得到指定Key的Value } return StrReturnValue; } #endregion #region 更新单独一条Cookie的值 /**/ /// <summary> /// 更新单独一条Cookie的值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="KeyName">Key名称</param> /// <param name="Value">值</param> /// <returns>返回布尔值</returns> public static bool UpdateSingleValue(string CookieName,string KeyName, string Value) { bool BoolReturnValue = false; NameValueCollection nvc = new NameValueCollection(); nvc.Add(KeyName, Value); if (!string.IsNullOrEmpty(CookieName)) //判断是否能建Cookie { HttpCookie httpCookie = HttpContext.Current.Request.Cookies[CookieName]; if (httpCookie != null) { if (HttpContext.Current.Request.Cookies[CookieName].Values[KeyName] != null) { BoolReturnValue = UpdateCookie(CookieName, nvc); } else { BoolReturnValue = AddCookie(CookieName, nvc); } } else { BoolReturnValue = WriteCookie(CookieName, nvc); } } return BoolReturnValue; } #endregion #region 添加单独的一条Cookie值 /// <summary> /// 添加单独的一条Cookie值 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <param name="KeyName">Key名称</param> /// <param name="Value">值</param> /// <returns></returns> public static bool AddSingleCookie(string CookieName, string KeyName, string Value) { bool BoolReturnValue = false; NameValueCollection nvc = new NameValueCollection(); nvc.Add(KeyName, Value); if (!string.IsNullOrEmpty(CookieName)) //判断是否能建Cookie { HttpCookie httpCookie = HttpContext.Current.Request.Cookies[CookieName]; if (httpCookie != null) { if (HttpContext.Current.Request.Cookies[CookieName].Values[KeyName] != null) { BoolReturnValue = UpdateCookie(CookieName, nvc); } else { BoolReturnValue = AddCookie(CookieName, nvc); } } else { BoolReturnValue = WriteCookie(CookieName, nvc); } } return BoolReturnValue; } #endregion #region 判断是否存在Cookie表 /// <summary> /// 判断是否存在Cookie表 /// </summary> /// <param name="CookieName">Cookie名称</param> /// <returns></returns> public static bool HasCookie(string CookieName) { bool BoolReturnValue = false; if (HttpContext.Current.Request.Cookies[CookieName] != null) BoolReturnValue = true; return BoolReturnValue; } #endregion }