Session对象实例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            //获取传递过来的那么
           
            if (Session["name"] == null)// “”
            {
                Response.Write("你还没有登录,请<a href='Demo.aspx'>登录</a>后在进入");
                Response.End();//终止
            }
            else
            {
                Response.Write("欢迎" + Session["name"] + "登录");
            }
            
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Session.Clear();//清除记录
            Response.Redirect("Default.aspx");
        }
    }
}

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Demo : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            //session会话对象
            //浏览器与服务器的一次连接是一个会话
           string i=  Session.SessionID;
           Response.Write("会话ID"+i);
           //session主要用来存放会话者的数据的
           //session存放服务器内存中的，当前会话者拥有，绘画结束时对象释放
           Session["name"] = TextBox1.Text;//往session存放一个数据
           Session.Timeout = 1;//超过时间,默认值是20分钟
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            Response.Write("用户名:"+Session["name"]);
        }
    }
}