ASP.NET緩存處理類實例

本文實例講述了ASP.NET緩存處理類。分享給大家供大家參考。具體如下：
ASP.NET 緩存處理類。

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);)

具體代碼如下：

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);
  }
}

希望本文所述對大家的asp.net程序設計有所幫助。