ASP.NET缓存处理类 ASP.NET缓存处理类实例

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ASP.NET缓存处理类 ASP.NET缓存处理类实例

小卒过河   2021-03-21 我要评论
想了解ASP.NET缓存处理类实例的相关内容吗,小卒过河在本文为您仔细讲解ASP.NET缓存处理类的相关知识和一些Code实例,欢迎阅读和指正,我们先划重点:ASP.NET,缓存,类,下面大家一起来学习吧。

本文实例讲述了ASP.NET缓存处理类。分享给大家供大家参考。具体如下:
ASP.NET 缓存处理类。

用法:

Just copy this code into a new class file (.cs) and add it to your ASP .NET website. One thing to keep in mind is that data stored in ASP .NET Cache can be accessible across all sessions. So when creating a cacheID for the object to be stored, it must be unique (or it could be overwritten). I usually store the unique cacheID in the session and then use that to referrence the cacheID. (e.g. CacheHandler.Write(Session["MyCacheData"], myData);)

具体代码如下:

using System;
using System.Collections.Generic;
using System.Web.Caching;
using System.Web;
/// <summary>
/// This class reads/writes to ASP .NET server cache. For the sake of 
/// simplicity, the class writes objects to cache with no expirateion.
/// Use the Remove() function to programmatically remove objects stored
/// from the server cache. This class was created as an alternative to 
/// storing large objects in the session.
/// </summary>
public class CacheHandler
{
  public static bool Write(string cacheID, object data)
  {
    if (HttpContext.Current == null)
      return false;
    if (cacheID == null || cacheID.Equals(""))
      return false;
    HttpRuntime.Cache.Insert(
        cacheID, data, null, Cache.NoAbsoluteExpiration, 
        Cache.NoSlidingExpiration, CacheItemPriority.NotRemovable, null
        );
    return true;
  }
  public static object Read(string cacheID)
  {
    if (HttpContext.Current == null)
      return null;
    return HttpRuntime.Cache.Get(cacheID);
  }
  public static void Remove(string cacheID)
  {
    if (HttpContext.Current == null )
      return;
    if (cacheID == null || cacheID.Equals(""))
      return;
    HttpRuntime.Cache.Remove(cacheID);
  }
}

希望本文所述对大家的asp.net程序设计有所帮助。

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