两个页面，test1.aspx,test2.aspx。
test1.aspx1
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test1.aspx.cs" Inherits="test1" %>2
3
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">4
5
<html xmlns="http://www.w3.org/1999/xhtml">6
<head runat="server">7
<title>Untitled Page</title>8
</head>9
<body>10
<form id="form1" runat="server">11
<div>12
13
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>14
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>15
<br />16
<asp:Button ID="btServerTransfer" BackColor="Red" runat="server" onclick="ServerTransfer_Click" Text="Server.Transfer" />17
<asp:Button ID="btResponseRedirect" BackColor="Orange" runat="server" Text="ResponseRedirect " 18
onclick="btResponseRedirect_Click" />19
<asp:Button ID="btSession" BackColor="Yellow" runat="server" Text="Session" 20
onclick="btSession_Click" />21
<asp:Button ID="btCookies" BackColor="Green" runat="server" Text="Cookies" 22
onclick="btCookies_Click" />23
<asp:Button ID="btApplication" BackColor="Blue" runat="server" Text="Application " 24
onclick="btApplication_Click" />25
26
</div>27
</form>28
</body>29
</html>
test1.aspx.cs1
using System;2
using System.Configuration;3
using System.Data;4
using System.Linq;5
using System.Web;6
using System.Web.Security;7
using System.Web.UI;8
using System.Web.UI.HtmlControls;9
using System.Web.UI.WebControls;10
using System.Web.UI.WebControls.WebParts;11
using System.Xml.Linq;12
13
public partial class test1 : System.Web.UI.Page 14
{15
protected void Page_Load(object sender, EventArgs e)16
{17
18
}19
protected void ServerTransfer_Click(object sender, EventArgs e)20
{21
Server.Transfer("test2.aspx",true); 22
23
}24
public string Name25
{26
get27
{28
return TextBox1.Text;29
}30
}31
32
public string EMail33
{34
get35
{36
return TextBox2.Text;37
}38
}39
//false表示页面跳转时不要停止该页面活动，通常和try一起用来捕捉异常40
protected void btResponseRedirect_Click(object sender, EventArgs e)41
{42
Response.Redirect("test2.aspx?Name=" + TextBox1.Text + "&Email=" + TextBox2.Text,false);43
}44
protected void btSession_Click(object sender, EventArgs e)45
{46
Session["Name"] = TextBox1.Text;47
Session["Email"] = TextBox2.Text;48
Response.Redirect("test2.aspx");49
}50
protected void btCookies_Click(object sender, EventArgs e)51
{52
//HttpCookie Cookie = new HttpCookie("Cookie1");53
//Cookie.Value["Name"] = TextBox1.Text;54
//Cookie.Value["Email"] = TextBox2.Text;55
//Response.Cookies.Add(Cookie);56
//和下面作用一样57
//接受变为Request.Cookies["Cookie1"]["Email"]58
HttpCookie cName = new HttpCookie("Name");59
HttpCookie cEmail = new HttpCookie("Email");60
cName.Value = TextBox1.Text;61
Response.Cookies.Add(cName);62
cEmail.Value = TextBox2.Text;63
Response.Cookies.Add(cEmail);64
Response.Redirect("test2.aspx");65
}66
protected void btApplication_Click(object sender, EventArgs e)67
{68
Application["Name"] = TextBox1.Text;69
Application["Email"] = TextBox2.Text;70
Response.Redirect("test2.aspx"); 71
72
}73
}74
test2.aspx<%@ Page Language="C#" AutoEventWireup="true" CodeFile="test2.aspx.cs" Inherits="test2" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<br />
<asp:Label ID="Label2" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
test2.aspx.cs1
using System;2
using System.Collections;3
using System.Configuration;4
using System.Data;5
using System.Linq;6
using System.Web;7
using System.Web.Security;8
using System.Web.UI;9
using System.Web.UI.HtmlControls;10
using System.Web.UI.WebControls;11
using System.Web.UI.WebControls.WebParts;12
using System.Xml.Linq;13
using System.Drawing;14
15
public partial class test2 : System.Web.UI.Page16
{17
protected void Page_Load(object sender, EventArgs e)18
{19
//server.transfer多用于有大量参数的传值20
//要传递的变量可以通过属性或方法来获得21
//直接在服务器端重定向，使用简单方便，减少了客户端对服务器端提出请求22
//地址栏url不变23
if (Context.Handler is test1)24
{25
test1 test1 = (test1)Context.Handler;26
Label1.Text = test1.Name;27
Label2.Text = test1.EMail;28
Label1.BackColor = Color.Red;29
Label2.BackColor = Color.Red;30
}31
//一般用于传递的值少而安全性要求不高的情况下32
//所有的变量都能在浏览器的URL中看到，不用于传机密参数33
//不能传递对象34
else if (Request.QueryString["Name"] != null)35
{36
Label1.Text = Request.QueryString["Name"];37
Label2.Text = Request.QueryString["Email"];38
Label1.BackColor = Color.Orange;39
Label2.BackColor = Color.Orange;40
}41
//Session在用户向服务端发出首次请求时被创建，而在用户关闭浏览器或异常发生时终止42
//Session还可能过期43
//在Session变量存储过多的数据会消耗比较多的服务器资源44
//应该使用一些清理动作来去除一些不需要的session来降低资源的无谓消耗45
else if (Session["Name"] != null && Session["Email"] != null)46
{47
Label1.Text = Session["Name"].ToString();48
Label2.Text = Session["Email"].ToString();49
Label1.BackColor = Color.Yellow;50
Label2.BackColor = Color.Yellow;51
}52
//一些浏览器是不支持Cookies的53
//一个cookie实例可以保存多个值54
//Cookie用于在用户浏览器上存储小块的信息，保存用户的相关信息，用户下次访问就可以通过检索获得以前的信息55
//浏览器对 Cookie 的大小有限制，只有不超过 4096 字节才能保证被接受56
//Cookie通过HTTP头在浏览器和服务器之间来回传递的57
//Cookie只能包含字符串的值58
//可以通过遍历Request对象的Cookie集合可以获得所有的浏览器所有的Cookie59
else if (Request.Cookies["Name"] != null && Request.Cookies["Email"] != null)60
{61
Label1.Text = Request.Cookies["Name"].Value;62
Label2.Text = Request.Cookies["Email"].Value;63
Label1.BackColor = Color.Green;64
Label2.BackColor = Color.Green;65
}66
//Application变量并赋值，可以在网站（项目）的所有页面中获得它67
//应用计数器等需要全局变量的地方68
else if (Application["Name"] != null && Application["Email"] != null)69
{70
Label1.Text = Application["Name"].ToString();71
Label2.Text = Application["Email"].ToString();72
Label1.BackColor = Color.Blue;73
Label2.BackColor = Color.Blue;74
}75
}76
}77
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