admin/admin.aspx.cs

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

namespace ytadmin
{
    public partial class admin : System.Web.UI.Page
    {
        public string adminstr;
        public string tit;
        public string ip;

        protected void Page_Load(object sender, EventArgs e)
        {
            //Session["adminusername"] = "admin";
            Page.Title = get.gsstr() + "后台管理系统";
            tit = get.gsstr() + "后台管理系统";
            
            if (Request.Cookies["adminusername"] == null)
            {
                Response.Write("<script>alert('请先登录...');self.window.parent.location='Default.aspx';</script>");
                Response.End();
            }
            else if (Request.QueryString["logout"] != null)
            {
                HttpCookie cookie = Request.Cookies["adminusername"];
                if (cookie != null)
                {
                    cookie.Expires = DateTime.Now.AddDays(-1);
                    Response.AppendCookie(cookie);
                }
                Response.Redirect(Request.RawUrl);
            }
            else
            {
                //Session["adminusername"] = Session["adminusername"];
                string um = Server.UrlDecode(Request.Cookies["adminusername"].Value);
                if (um == "admin")
                {
                    adminstr = "超级管理员：" + um;
                }
                else
                {
                    adminstr = "管理员：" + um;
                }
                ip = "您的IP地址为：" + Request.UserHostAddress;
            }
        }

    }
}