C# Cookie操作

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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

}