使用ASP.NET 的缓存机制的示例

if (HttpContext.Current.Cache["code_" + CodeType] == null)
{

　　SysCodeService codeService = new SysCodeService();

　　List<SysCodeInfo> allCode = codeService.GetCodeListByFlag(CodeType); HttpContext.Current.Cache.Add("code_" + CodeType, allCode, null, DateTime.MaxValue, new TimeSpan(0, 10, 0), System.Web.Caching.CacheItemPriority.Default, null)
}
var dataSource = ((List<SysCodeInfo>)HttpContext.Current.Cache["code_" + CodeType]);