ASP.NET缓存处理类实例

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);
 }
}