单例模式实现

来源：互联网发布：淘宝没展现怎么办编辑：程序博客网时间：2024/04/30 14:43

/// <summary>
    /// 单例模式实现登陆用户Session管理
    /// </summary>
    public class UserSessionInfo
    {
        private static UserSessionInfo instance;

        protected UserSessionInfo() {}

        public static UserSessionInfo Instance()
        {
            if( instance == null )
            {
                instance = new UserSessionInfo();
            }
            return instance;
        }


        private string _UserName ="";
        /// <summary>
        /// 用户名
        /// </summary>
        public string UserName
        {
            get
            {
                return _UserName;
            }
            set
            {
                _UserName = value;
            }

        }

        private string _UserTypeName ="";
        /// <summary>
        /// 用户类型
        /// </summary>
        public string UserTypeName
        {
            get
            {
                return _UserTypeName;
            }
            set
            {
                _UserTypeName = value;
            }

        }

    }

WebForm1.aspx 页面代码

private void Button1_Click(object sender, System.EventArgs e)
        {
            UserSessionInfo userSessionInfo = UserSessionInfo.Instance();
            userSessionInfo.UserName = this.TextBox2.Text;
            userSessionInfo.UserTypeName = this.TextBox3.Text;
            Response.Redirect("WebForm2.aspx");
        }

WebForm2.aspx 页面代码

private void Page_Load(object sender, System.EventArgs e)
  {
   UserSessionInfo userSessionInfo = UserSessionInfo.Instance();
   this.Label5.Text = userSessionInfo.UserName;
   this.Label6.Text = userSessionInfo.UserTypeName;
  }