private bool IsInsideNet()
{
if((Request.UserHostAddress.Substring(0,7)=="192.168")||(Request.UserHostAddress.Substring(0,6)=="172.16")||(Request.UserHostAddress.Substring(0,9)=="127.0.0.1"))
return true;
else
return false;
}
//查看一下在进入这个页面之前的页面
private string GetUrlRefer()
{
string From_Url = Request.ServerVariables["HTTP_REFERER"];
string Server_Url = Request.ServerVariables["SERVER_NAME"];
return From_Url+Server_Url;
}
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
if(!IsPostBack)
{
if(IsInsideNet())
{
if(GetUrlRefer()!="www.qhschool.com")
Response.Redirect("SetDns.aspx");
else
Response.Redirect("Index.htm");
}
else
{
Response.Redirect("Index.htm");
}
}