使用Cache缓存

string CacheKey = "CT1"; //检索指定项，
object objModel = Cache.Get(CacheKey);
if (objModel == null)
{
objModel = "插入值";
Cache.Insert(CacheKey, objModel, null, DateTime.Now.AddMinutes(120), System.Web.Caching.Cache.NoSlidingExpiration);
} //缓存120分钟