Request对象是HttpRequest类的一个实例，它提供对当前页请求的访问，其中包括请求标题、Cookie、客户端证书、查询字符串等，你可以使用此类来读取浏览器已经发送的内容。
新建一个网站，包括两个网页，代码如下：
1、Default.aspx代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>












onClick="Button1_Click" />




Default.aspx.cs代码：
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Application["id"] = TextBox1.Text;
}
protected void Button1_Click(object sender, EventArgs e)
{
Response.Redirect("Default2.aspx?id=" + TextBox1.Text.Trim() + "");
}
}
2、Default2.aspx代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Label1.Text = Page.Request.QueryString["id"].ToString();
Response.Write(Request.Browser.Platform);
Response.Write("
");
Response.Write(Request.MapPath("Default2.aspx"));
Response.Write("
");
Response.Write(Request.UserHostAddress);
Response.Write("
");
Response.Write(Request.Url.OriginalString);
Response.Write("
");
Response.Write(Request.RawUrl);
Response.Write("
");
Response.Write(Request.QueryString);
Response.Write("
");
Response.Write(Request.HttpMethod);
Response.Write("
");
Response.Write(Request.UserHostAddress);
Response.Write("
");
Response.Write(Request.UserAgent);
Response.Write("
");
}
}