另见文章：http://blog.csdn.net/goodshot/article/details/8765153
protected void Page_Load(object sender, EventArgs e)
{
string[] keys = Request.Cookies.AllKeys;
string str0=Request.Cookies["account"].Value;//调试显示stro=”张三&1=NO1&2=NO2“
string str1 = Request.Cookies["password"].Value;//调试显示str1=”123“
string str2= Request.Cookies["third"].Value;//调试显示str2="1=third"
string str01 = Request.Cookies["account"].Values["1"];//str01="NO1"
string str02 = Request.Cookies["account"]["2"];//str02="NO2"
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
//第一种写入方式
HttpCookie accountCookie=new HttpCookie("account", txtAccount.Text);
accountCookie.Values.Add("NO1", "1");
accountCookie.Values.Add("NO2", "2");
//调试显示
accountCookie.value=”张三&NO1=1&NO2=2“，
accountCookie.values=”张三&NO1=1&NO2=2“
accountCookie.Expires = DateTime.Now.Date.AddDays(Convert.ToDouble(rdoSpan.SelectedValue));
Response.Cookies.Add(accountCookie);
//第二种写入方式
HttpCookie passwordCookie = new HttpCookie("password", txtPsw.Text);
passwordCookie.Expires = DateTime.Now.Date.AddDays(Convert.ToDouble(rdoSpan.SelectedValue));
Response.AppendCookie(passwordCookie);
//第三种写入方式
Response.Cookies["third"].Expires = DateTime.Now.Date.AddDays(Convert.ToDouble(rdoSpan.SelectedValue));
Response.Cookies["third"]["1"] = "Third";
int count=Response.Cookies.Count;
}
Response.Cookies.Add(accountCookie)
和Response.AppendCookie(passwordCookie)
以及Response.Cookies["third"]["1"] = "Third";
是三种将值写入客户端cookie的方式
今天有空就把操作cookie的写了，虽然很简单，不过免得到时候忘记了，之前就是忘记了还很实验了一番才弄出来，郁闷了。
下面是写cookie
1 HttpCookie cookie = new HttpCookie("Info");//定义cookie对象以及名为Info的项
2 DateTime dt = DateTime.Now;//定义时间对象
3 TimeSpan ts=new TimeSpan(1,0,0,0);//cookie有效作用时间，具体查msdn
4 cookie.Expires = dt.Add(ts);//添加作用时间
5 cookie.Values.Add("user","cxbkkk");//增加属性
6 cookie.Values.Add("userid","1203");
7 Response.AppendCookie(cookie);//确定写入cookie中 读取cookie
1 if(Request.Cookies["Info"]!=null)
2 {
3 string temp=Convert.ToString(Request.Cookies["Info"].Values["user"]) " " Convert.ToString(Request.Cookies["Info"].Values["userid"]);
4 //读全部就用Request.Cookies["Info"].Value)
5 if(temp=="")
6 {
7 Response.Write("空");
8 }
9 else
10 Response.Write(temp);
11 }
12 else
13 {
14 Response.Write("error");
15 }
修改cookie
1 Response.Cookies["Info"]["user"] = "2";
2 Response.Cookies["Info"].Expires = DateTime.Now.AddDays(1); 删除cookie下的属性
1 HttpCookie acookie=Request.Cookies["Info"];
2 acookie.Values.Remove("userid");
3 acookie.Expires = DateTime.Now.AddDays(1);
4 Response.Cookies.Add(acookie); 删除所有cookie，就是设置过期时间为现在就行了
1 int limit=Request.Cookies.Count - 1;
2 for(int i=0;i<limit;i )
3 {
4 acookie = Request.Cookies(i)
5 acookie.Expires = DateTime.Now.AddDays(-1)
6 Response.Cookies.Add(acookie)
7 }
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
StringBuilder sb = new StringBuilder();
// Get cookie from the current request. HttpCookie cookie = Request.Cookies.Get("DateCookieExample");
// Check if cookie exists in the current request. if (cookie == null)
{
sb.Append("Cookie was not received from the client. ");
sb.Append("Creating cookie to add to the response. <br/>");
// Create cookie. cookie = new HttpCookie("DateCookieExample");
// Set value of cookie to current date time. cookie.Value = DateTime.Now.ToString(); // Set cookie to expire in 10 minutes. cookie.Expires = DateTime.Now.AddMinutes(10d); // Insert the cookie in the current HttpResponse. Response.Cookies.Add(cookie); } else { sb.Append("Cookie retrieved from client. <br/>");
sb.Append("Cookie Name: " cookie.Name "<br/>");
sb.Append("Cookie Value: " cookie.Value "<br/>");
sb.Append("Cookie Expiration Date: "
cookie.Expires.ToString() "<br/>");
}
Label1.Text = sb.ToString();
}
</script>
<html >
<head runat="server">
<title>HttpCookie Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label id="Label1" runat="server"></asp:Label>
</div>
</form>
</body>
</html>