读取和写入Cookies

 #region 读取或写入cookie
  2         /// <summary>
  3         /// 写cookie值
  4         /// </summary>
  5         /// <param name="strName">名称</param>
  6         /// <param name="strValue">值</param>
  7         public static void WriteCookie(string strName, string strValue)
  8         {
  9             HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
 10             if (cookie == null)
 11             {
 12                 cookie = new HttpCookie(strName);
 13             }
 14             cookie.Value = UrlEncode(strValue);
 15             HttpContext.Current.Response.AppendCookie(cookie);
 16         }
 17 
 18         /// <summary>
 19         /// 写cookie值
 20         /// </summary>
 21         /// <param name="strName">名称</param>
 22         /// <param name="strValue">值</param>
 23         public static void WriteCookie(string strName, string key, string strValue)
 24         {
 25             HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
 26             if (cookie == null)
 27             {
 28                 cookie = new HttpCookie(strName);
 29             }
 30             cookie[key] = UrlEncode(strValue);
 31             HttpContext.Current.Response.AppendCookie(cookie);
 32         }
 33 
 34         /// <summary>
 35         /// 写cookie值
 36         /// </summary>
 37         /// <param name="strName">名称</param>
 38         /// <param name="strValue">值</param>
 39         public static void WriteCookie(string strName, string key, string strValue, int expires)
 40         {
 41             HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
 42             if (cookie == null)
 43             {
 44                 cookie = new HttpCookie(strName);
 45             }
 46             cookie[key] = UrlEncode(strValue);
 47             cookie.Expires = DateTime.Now.AddMinutes(expires);
 48             HttpContext.Current.Response.AppendCookie(cookie);
 49         }
 50 
 51         /// <summary>
 52         /// 写cookie值
 53         /// </summary>
 54         /// <param name="strName">名称</param>
 55         /// <param name="strValue">值</param>
 56         /// <param name="strValue">过期时间(分钟)</param>
 57         public static void WriteCookie(string strName, string strValue, int expires)
 58         {
 59             HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
 60             if (cookie == null)
 61             {
 62                 cookie = new HttpCookie(strName);
 63             }
 64             cookie.Value = UrlEncode(strValue);
 65             cookie.Expires = DateTime.Now.AddMinutes(expires);
 66             HttpContext.Current.Response.AppendCookie(cookie);
 67         }
 68         /// <summary>
 69         /// 写cookie值
 70         /// </summary>
 71         /// <param name="strName">名称</param>
 72         /// <param name="expires">过期时间(天)</param>
 73         public static void WriteCookie(string strName, int expires)
 74         {
 75             HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
 76             if (cookie == null)
 77             {
 78                 cookie = new HttpCookie(strName);
 79             }
 80             cookie.Expires = DateTime.Now.AddDays(expires);
 81             HttpContext.Current.Response.AppendCookie(cookie);
 82         }
 83 
 84         /// <summary>
 85         /// 写入COOKIE，并指定过期时间
 86         /// </summary>
 87         /// <param name="strName">KEY</param>
 88         /// <param name="strValue">VALUE</param>
 89         /// <param name="expires">过期时间</param>
 90         public static void iWriteCookie(string strName, string strValue, int expires)
 91         {
 92             HttpCookie cookie = HttpContext.Current.Request.Cookies[strName];
 93             if (cookie == null)
 94             {
 95                 cookie = new HttpCookie(strName);
 96             }
 97             cookie.Value = strValue;
 98             if (expires > 0)
 99             {
100                 cookie.Expires = DateTime.Now.AddMinutes((double)expires);
101             }
102             HttpContext.Current.Response.AppendCookie(cookie);
103         }
104 
105         /// <summary>
106         /// 读cookie值
107         /// </summary>
108         /// <param name="strName">名称</param>
109         /// <returns>cookie值</returns>
110         public static string GetCookie(string strName)
111         {
112             if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null)
113                 return UrlDecode(HttpContext.Current.Request.Cookies[strName].Value.ToString());
114             return "";
115         }
116 
117         /// <summary>
118         /// 读cookie值
119         /// </summary>
120         /// <param name="strName">名称</param>
121         /// <returns>cookie值</returns>
122         public static string GetCookie(string strName, string key)
123         {
124             if (HttpContext.Current.Request.Cookies != null && HttpContext.Current.Request.Cookies[strName] != null && HttpContext.Current.Request.Cookies[strName][key] != null)
125                 return UrlDecode(HttpContext.Current.Request.Cookies[strName][key].ToString());
126 
127             return "";
128         }
129         #endregion