为每个页面加上Session判断的小例子

using System;
using System.Data;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

namespace FuSession
{
public class JudgeSession : System.Web.UI.Page
{
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
if (Session.Keys.Count <= 0)
{
Response.Redirect("~/TiaoZh.htm", true);
}
else
{
if (Session["UserId"] == null && Session["Qx"] == null && Session["Dept"] == null && Session["UserName"] == null && Session["QxType"]==null)
{
Response.Redirect("~/TiaoZh.htm", true);
}
}
}
}
}

在页面中按照如下方法引用即可。