IRequiresSessionState接口控制

using System;
using System.Diagnostics;
using System.Reflection;
using System.Web.SessionState;

namespace Ztest
{
    public class Program: IRequiresSessionState
    {
        public static void Main(string[] args)
        {
            try
            {
                if (Test.Current.session == null)
                {
                    Console.WriteLine("没有继承IRequiresSessionState");
                }
                else
                {
                    Console.WriteLine(Test.Current.session);
                }
            }
            catch (Exception ex)
            {
            }
            Console.ReadLine();
        }
    }
    public class Test
    {
        private  Test()
        {
            Type basetype = typeof(IRequiresSessionState);
            StackTrace trace = new StackTrace();
            int i = 0;
            Type type;
            while (true)
            {
                ///找到外层第一个调用类
                MethodBase methodName = trace.GetFrame(i).GetMethod();
                type = methodName.ReflectedType;
                if (type != typeof(Test))
                {
                    break;
                }
                i++;
            }
          
            Boolean key = basetype.IsAssignableFrom(type);
            if (key)
            {
                session = _m;
            }
            else
            {
                session = null;
            }
        }
        private static Test _Current;
        private string _m = "当前类实现了IRequiresSessionState";
        /// <summary>
        /// 模拟session
        /// </summary>
        public Object session { get; set; }
        public static Test Current
        {
            get
            {
                return get();
            }
            set
            {
                Current = value;
            }
        }
        private static Test get()
        {
            if (_Current == null)
            {
                _Current = new Test();
             
            }
            return _Current;
        }
    }
   
}