继承System.Web.SessionState.IRequiresSessionState，使Session拥有读取和写入权限
public class BankPay : IHttpHandler,System.Web.SessionState.IRequiresSessionState
{
public void ProcessRequest(HttpContext context)
{
context.Response.End();
}
public bool IsReusable
{
get
{
return false;
}
}
}
参照
http://www.cnblogs.com/over140/archive/2008/12/27/1363491.html
http://msdn.microsoft.com/zh-tw/library/system.web.sessionstate.irequiressessionstate.aspx