操作session和cache代码,Asp.Net代码库,德仔网

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代码分类
【Asp.Net】操作session和cache
作者:Dezai.CN / 发布于2013/4/1/ 614

	--操作Session

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	/// Session操作类
	/// <summary>
	/// Session操作类
	/// </summary>
	public static class SessionCustom
	{
	 /// 添加Session，调动有效期默认为23分钟
	 /// <summary>
	 /// 添加Session，调动有效期默认为23分钟
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 /// <param name="strValue">Session值</param>
	 public static void Add(string strSessionName, string strValue)
	 {
	 HttpContext.Current.Session[strSessionName] = strValue;
	 HttpContext.Current.Session.Timeout = 23;
	 }
	 /// 添加Session
	 /// <summary>
	 /// 添加Session
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 /// <param name="strValue">Session值</param>
	 /// <param name="iExpires">调动有效期（分钟）</param>
	 public static void Add(string strSessionName, string strValue, int iExpires)
	 {
	 HttpContext.Current.Session[strSessionName] = strValue;
	 HttpContext.Current.Session.Timeout = iExpires;
	 }

	 /// 读取某个Session对象值
	 /// <summary>
	 /// 读取某个Session对象值
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 /// <returns>Session对象值</returns>
	 public static string Get(string strSessionName)
	 {
	 if (HttpContext.Current.Session[strSessionName] == null)
	 {
	 return null;
	 }
	 else
	 {
	 return HttpContext.Current.Session[strSessionName].ToString();
	 }
	 }

	 /// 删除某个Session对象
	 /// <summary>
	 /// 删除某个Session对象
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 public static void Del(string strSessionName)
	 {
	 HttpContext.Current.Session[strSessionName] = null;
	 }
	}
	/// Session操作类
	/// <summary>
	/// Session操作类
	/// </summary>
	public static class SessionCustom
	{
	 /// 添加Session，调动有效期默认为23分钟
	 /// <summary>
	 /// 添加Session，调动有效期默认为23分钟
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 /// <param name="strValue">Session值</param>
	 public static void Add(string strSessionName, string strValue)
	 {
	 HttpContext.Current.Session[strSessionName] = strValue;
	 HttpContext.Current.Session.Timeout = 23;
	 }
	 /// 添加Session
	 /// <summary>
	 /// 添加Session
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 /// <param name="strValue">Session值</param>
	 /// <param name="iExpires">调动有效期（分钟）</param>
	 public static void Add(string strSessionName, string strValue, int iExpires)
	 {
	 HttpContext.Current.Session[strSessionName] = strValue;
	 HttpContext.Current.Session.Timeout = iExpires;
	 }

	 /// 读取某个Session对象值
	 /// <summary>
	 /// 读取某个Session对象值
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 /// <returns>Session对象值</returns>
	 public static string Get(string strSessionName)
	 {
	 if (HttpContext.Current.Session[strSessionName] == null)
	 {
	 return null;
	 }
	 else
	 {
	 return HttpContext.Current.Session[strSessionName].ToString();
	 }
	 }

	 /// 删除某个Session对象
	 /// <summary>
	 /// 删除某个Session对象
	 /// </summary>
	 /// <param name="strSessionName">Session对象名称</param>
	 public static void Del(string strSessionName)
	 {
	 HttpContext.Current.Session[strSessionName] = null;
	 }
	}

	--操作Cache

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	/// Cache操作类
	/// <summary>
	/// Cache操作类
	/// </summary>
	public static class CacheCustom
	{
	 /// 简单创建/修改Cache，前提是这个值是字符串形式的
	 /// <summary>
	 /// 简单创建/修改Cache，前提是这个值是字符串形式的
	 /// </summary>
	 /// <param name="strCacheName">Cache名称</param>
	 /// <param name="strValue">Cache值</param>
	 /// <param name="iExpires">有效期，秒数（使用的是当前时间+秒数得到一个绝对到期值）</param>
	 /// <param name="priority">保留优先级，1最不会被清除，6最容易被内存管理清除（1:NotRemovable；2:High；3:AboveNormal；4:Normal；5:BelowNormal；6:Low）</param>
	 public static void Insert(string strCacheName, string strValue, int iExpires, int priority)
	 {
	 TimeSpan ts = new TimeSpan(0, 0, iExpires);
	 CacheItemPriority cachePriority;
	 switch (priority)
	 {
	 case 6:
	 cachePriority = CacheItemPriority.Low;
	 break;
	 case 5:
	 cachePriority = CacheItemPriority.BelowNormal;
	 break;
	 case 4:
	 cachePriority = CacheItemPriority.Normal;
	 break;
	 case 3:
	 cachePriority = CacheItemPriority.AboveNormal;
	 break;
	 case 2:
	 cachePriority = CacheItemPriority.High;
	 break;
	 case 1:
	 cachePriority = CacheItemPriority.NotRemovable;
	 break;
	 default:
	 cachePriority = CacheItemPriority.Default;
	 break;
	 }
	 HttpContext.Current.Cache.Insert(strCacheName, strValue, null, DateTime.Now.Add(ts), System.Web.Caching.Cache.NoSlidingExpiration, cachePriority, null);
	 }

	 /// 简单读书Cache对象的值，前提是这个值是字符串形式的
	 /// <summary>
	 /// 简单读书Cache对象的值，前提是这个值是字符串形式的
	 /// </summary>
	 /// <param name="strCacheName">Cache名称</param>
	 /// <returns>Cache字符串值</returns>
	 public static string Get(string strCacheName)
	 {
	 return HttpContext.Current.Cache[strCacheName].ToString();
	 }

	 /// 删除Cache对象
	 /// <summary>
	 /// 删除Cache对象
	 /// </summary>
	 /// <param name="strCacheName">Cache名称</param>
	 public static void Del(string strCacheName)
	 {
	 HttpContext.Current.Cache.Remove(strCacheName);
	 }
	}
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　cache　
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