protected void Page_Load(object sender, EventArgs e)
{
string CacheKey = "cachetest";
object objModel = GetCache(CacheKey); //从缓存中获取
if (objModel == null) //缓存里没有
{
objModel = DateTime.Now; //把当前时间进行缓存
if (objModel != null)
{
int CacheTime = 30; //缓存时间30秒
SetCache(CacheKey, objModel, DateTime.Now.AddSeconds(CacheTime), TimeSpan.Zero);
}
}
Label1.Text = objModel.ToString();
}
#region Cache管理
/// <summary>
/// 获取当前应用程序指定CacheKey的Cache对象值
/// </summary>
/// <param name="CacheKey">索引键值</param>
/// <returns>返回缓存对象</returns>
public static object GetCache(string CacheKey)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
return objCache[CacheKey];
}
/// <summary>
/// 设置当前应用程序指定CacheKey的Cache对象值
/// </summary>
/// <param name="CacheKey">索引键值</param>
/// <param name="objObject">缓存对象</param>
public static void SetCache(string CacheKey, object objObject)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject);
}
/// <summary>
/// 设置当前应用程序指定CacheKey的Cache对象值
/// </summary>
/// <param name="CacheKey">索引键值</param>
/// <param name="objObject">缓存对象</param>
/// <param name="absoluteExpiration">绝对过期时间</param>
/// <param name="slidingExpiration">最后一次访问所插入对象时与该对象过期时之间的时间间隔</param>
public static void SetCache(string CacheKey, object objObject, DateTime absoluteExpiration, TimeSpan slidingExpiration)
{
System.Web.Caching.Cache objCache = HttpRuntime.Cache;
objCache.Insert(CacheKey, objObject, null, absoluteExpiration, slidingExpiration);
}
#endregion