webutils.cs

这个是网上相册系统的一个架构设计说明

using System;
using System.Web;
using System.Web.SessionState;

using Utils;
namespace AlbumOL
{
	/// <summary>
	/// WebUtils 的摘要说明。
	/// </summary>
	public sealed class WebUtils
	{
		private WebUtils()
		{
		}

		public static void CheckUser()
		{
			if(HttpContext.Current.Request.Cookies["Principal"] == null)
				HttpContext.Current.Response.Redirect("Login.aspx");
			
			string strPrincipal = HttpContext.Current.Request.Cookies["Principal"].Value;
			Utils.MyPrincipal  principal = Utils.User.CheckUser(strPrincipal) as MyPrincipal;
			if(principal == null)
			{
				HttpContext.Current.Response.Redirect("Login.aspx");
			}
			else
			{
				HttpContext.Current.User = principal;
			}
		}
	}
}