C# 如何在一个页面中设置 cookie 值并从 asp.net 网站的另一个页面读取它
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How can I set cookie value in one page and read it from another page in a asp.net website
提问by techblog
This is my code in Login.aspx
这是我在 Login.aspx 中的代码
protected void LoginButton_Click(object sender, EventArgs e)
{
HttpCookie loginCookie1 = new HttpCookie("loginCookie");
Response.Cookies["loginCookie1"].Value = LoginUser.UserName;
Response.Cookies.Add(loginCookie1);
}
And this is in shop.aspx
这是在 shop.aspx
protected void btnAddCart_Click(object sender, EventArgs e)
{
HttpCookie myCookie = new HttpCookie(dvProduct.DataKey.Value.ToString());
myCookie["Category"] = dvProduct.DataKey["Category"].ToString();
myCookie["Product"] = dvProduct.DataKey["Product"].ToString();
myCookie["Quantity"] = txtQuantity.Text;
myCookie["Price"] = dvProduct.DataKey["Price"].ToString();
myCookie.Expires = DateTime.Now.AddDays(1d);
Response.Cookies.Add(myCookie);
Response.Redirect("ViewCart.aspx", true);
}
I want to read the value of username from cookie(value set in login.aspx
我想从 cookie 中读取用户名的值（在 login.aspx 中设置的值
采纳答案by COLD TOLD
you basically need to request the cookie it does not really matter on what page you are here is an explanation about cookies
您基本上需要请求 cookie 在您所在的页面上并不重要 是关于 cookie 的说明
http://msdn.microsoft.com/en-us/library/ms178194.aspx
http://msdn.microsoft.com/en-us/library/ms178194.aspx
HttpCookie aCookie = Request.Cookies["loginCookie"];
string username = Server.HtmlEncode(aCookie.Value);
回答by Rick Strahl
This should do it:
这应该这样做：
var userName = Request.Cookies["loginCookie"].Value;
回答by Alexei Levenkov
Your code that sets loginCookie looks strange:
您设置 loginCookie 的代码看起来很奇怪：
HttpCookie loginCookie1 = new HttpCookie("loginCookie");
Response.Cookies["loginCookie1"].Value = LoginUser.UserName; // <--- strange!!!!
Response.Cookies.Add(loginCookie1);
Most likely your cookie does not get send to browser - check with HTTP debugger like Fiddler.
很可能您的 cookie 没有发送到浏览器 - 请使用像Fiddler这样的 HTTP 调试器进行检查。
