C#语法糖之 session操作类 asp.net-白红宇

C#语法糖之 session操作类 asp.net

阅读量：5078 次

发布时间：2019-06-12

本文共 3452 字，大约阅读时间需要 11 分钟。

用法:

//声名一个数据集合            var listString = new List
     
      () { "a", "b", "c" };            //session key            string key = "sekey";            //获取实例            var sessionManager = SessionManager
      
       
        >.GetInstance();            //添加session            sessionManager.Add(key, listString);            //add有其它重载 上面是最基本的            //获取            List
        
          sessionList = sessionManager[key];            //其它方法            sessionManager.ContainsKey(key);            sessionManager.Remove(key);//删除            sessionManager.RemoveAll(c => c.Contains("sales_"));//删除key包含sales_的session            sessionManager.GetAllKey();//获取所有key

代码：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Web;namespace SyntacticSugar{    ///     /// ** 描述：session操作类    /// ** 创始时间：2015-6-9    /// ** 修改时间：-    /// ** 作者：sunkaixuan    /// ** 使用说明：    /// 
    /// 
     
      键
         /// 
     
      值
         public class SessionManager
     
       : IHttpStorageObject
      
           {        private static readonly object _instancelock = new object();        private static SessionManager
       
         _instance = null;        public static SessionManager
        
          GetInstance()        {            if (_instance == null)            {                lock (_instancelock)                {                    if (_instance == null)                    {                        _instance = new SessionManager
         
          ();                    }                }            }            return _instance;        }        public override void Add(string key, V value)        {            context.Session.Add(key, value);        }        public override bool ContainsKey(string key)        {            return context.Session[key] != null;        }        public override V Get(string key)        {            return (V)context.Session[key];        }        public override IEnumerable
          
            GetAllKey() { foreach (var key in context.Session.Keys) { yield return key.ToString(); } } public override void Remove(string key) { context.Session[key] = null; context.Session.Remove(key); } public override void RemoveAll() { foreach (var key in GetAllKey()) { Remove(key); } } public override void RemoveAll(Func
           
             removeExpression) { var allKeyList = GetAllKey().ToList(); var removeKeyList = allKeyList.Where(removeExpression).ToList(); foreach (var key in removeKeyList) { Remove(key); } } public override V this[string key] { get { return (V)context.Session[key]; } } }}

using System;namespace SyntacticSugar{    public abstract class IHttpStorageObject
     
          {        public int Minutes = 60;        public int Hour = 60 * 60;        public int Day = 60 * 60 * 24;        public System.Web.HttpContext context = System.Web.HttpContext.Current;        public abstract void Add(string key, V value);        public abstract bool ContainsKey(string key);        public abstract V Get(string key);        public abstract global::System.Collections.Generic.IEnumerable
      
        GetAllKey();        public abstract void Remove(string key);        public abstract void RemoveAll();        public abstract void RemoveAll(Func
       
         removeExpression);        public abstract V this[string key] { get; }    }}