C# Cookie操作

 

操作 Cookie 公用代碼

        

#region 關於操作 Cookie 的方法

         ///<summary>

         /// 創建 cookie 值

         ///</summary>

         ///<param name="cookieName">cookie 名稱 </param>

         ///<param name="cookieValue">cookie 值 </param>

         ///<param name="cookieTime">cookie 有效時間 </param>

         private void CreateCookieValue(string cookieName,string cookieValue,DateTime cookieTime)

         {

              HttpCookie cookie = new HttpCookie(cookieName);

              cookie.Value=cookieValue;

              //DateTime dtNow = DateTime.Now ;

              //TimeSpan tsMinute = cookieTime;

              cookie.Expires = cookieTime;

              Response.Cookies.Add(cookie);

         }

         ///<summary>

         /// 創建 cookie 值

         ///</summary>

         ///<param name="cookieName">cookie 名稱 </param>    

         ///<param name="cookieValue">cookie 值 </param>

         ///<param name="subCookieName"> 子信息 cookie 名稱 </param>

         ///<param name="subCookieValue"> 子信息 cookie 值 </param>

         ///<param name="cookieTime">cookie 有效時間 </param>

         private void CreateCookieValue(string cookieName,string cookieValue,string subCookieName,string subCookieValue,DateTime cookieTime)

         {

              HttpCookie cookie = new HttpCookie(cookieName);

              cookie.Value=cookieValue;

              cookie[subCookieName]=subCookieValue;

              cookie.Expires = cookieTime;

              Response.Cookies.Add(cookie);

         }

         ///<summary>

         /// 取得 cookie 的值

         ///</summary>

         ///<param name="cookieName">cookie 名稱 </param>

         ///<returns></returns>

         private string GetCookieValue(string cookieName)

         {

              string cookieValue="";

              HttpCookie cookie = Request.Cookies[cookieName];            

              if(null == cookie)

              {

                   cookieValue="";

              }

              else

              {

                   cookieValue=cookie.Value;

              }

              return cookieValue;

         }

         ///<summary>

         /// 取得 cookie 的值

         ///</summary>

         ///<param name="cookieName">cookie 名稱 </param>

         ///<param name="subCookieName">cookie 子信息值 </param>

         ///<returns></returns>

         private string GetCookieValue(string cookieName,string subCookieName)

         {

              string cookieValue="";

              HttpCookie cookie = Request.Cookies[cookieName];            

              if(null == cookie)

              {

                   cookieValue="";

              }

              else

              {

                   cookieValue=cookie.Value;

                   cookieValue=cookieValue.Split('&')[1].ToString().Split('=')[1];

              }

              return cookieValue;

         }

         ///<summary>

         /// 刪除某個固定的 cookie 值 [ 此方法一是在原有的 cookie 上再創建同樣的 cookie 值，但是時間是過期的時間 ]

         ///</summary>

         ///<param name="cookieName"></param>

         private void RemoteCookieValue(string cookieName)

         {

              string dt="1900-01-01 12:00:00";

              CreateCookieValue(cookieName,"",Convert.ToDateTime(dt));

         }

         #endregion

 

以下是調用：

 

         private void Page_Load(object sender, System.EventArgs e)

         {

              // 在這裡放置使用者程式碼以初始化網頁     

              this.txt_UserID.Text=this.GetCookieValue("UserName","UserID");// 取得用戶名

         }

 

         private void btn_Submit_Click(object sender, System.EventArgs e)

         {   

#region 用 Cookie 進行保存登入用戶名

              if(this.chb_IsSave.Checked)

              {

                   // 將用戶保存一個小時，具體設置可以進行調整。。

                   // 這裡用了固定的公用的 cookie 用戶 UserName, 用戶編號 UserID 進行訪問

                   CreateCookieValue("UserName","UserName","UserID",this.txt_UserID.Text,DateTime.Now+new TimeSpan(0,1,0,0));// 設置保存用戶名

              }

              #endregion

}