Cache缓存优化

 降低数据库压力
 <appSettings><add key="ModelCache" value=""/></appSettings> //设置实体缓存时间

     public RupengWang.Model.Course GetModelByCache(long Id)
     {
         string CacheKey = "CourseModel-" + Id;
         object objModel = Maticsoft.Common.DataCache.GetCache(CacheKey);
         if (objModel == null)
         {
             objModel = dal.GetModel(Id);
             if (objModel != null)
             {
                 int ModelCache = Maticsoft.Common.ConfigHelper.GetConfigInt("ModelCache");
                 Maticsoft.Common.DataCache.SetCache(CacheKey, objModel, DateTime.Now.AddMinutes(ModelCache), TimeSpan.Zero);
             }
         }
         return (RupengWang.Model.Course)objModel;
     }

2.MVC中缓存

 /// <summary>
         /// 从缓存中获得自定义匿名对象
         /// </summary>
         /// <returns></returns>
         public object GetModelByCache()
         {
             string CacheKey = "MyProductAndGroupModel_";
             object objModel = HttpRuntime.Cache[CacheKey]; //获得当前应用程序的缓存
             if (objModel == null)
             {
                 objModel = GetDefineModelByEdm();
                 if (objModel != null)
                 {
                     //int ModelCache = Convert.ToInt32(ConfigurationManager.AppSettings["ModelCache"]);
                     HttpRuntime.Cache.Insert(CacheKey, objModel, null, DateTime.Now.AddMinutes(), TimeSpan.Zero);
                 }
             }
             return objModel;
         }

3 WebForm中所写最简单的缓存：

public partial class WebForm_cache : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            #region 缓存
            List<object> list = (List<object>)HttpRuntime.Cache["tc_students"];
            if (list == null || list.Count <= ) //如果缓存中没有就从DB中获取
            {
                List<object> listDB = new MyORM_BLL().SelectAllModel(typeof(TC_STUDENT));
                if (listDB.Count > ) //把数据库中获得的数据进行缓存
                {
                    HttpRuntime.Cache.Insert("tc_students", listDB, null, DateTime.Now.AddSeconds(), TimeSpan.Zero);
                }
                list = listDB;
            }
            Repeater1.DataSource = list;
            Repeater1.DataBind();
            #endregion
        }
    }

WebForm_cache.aspx.cs

参考：

http://www.cnblogs.com/zgx/archive/2009/03/16/1413643.html

http://bbs.csdn.net/topics/310107146