Cache缓存优化

降低数据库压力
<appSettings><add key="ModelCache" value="1"/></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(2), 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 <= 0) //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 > 0) //把数据库中获得的数据进行缓存
                {
                    HttpRuntime.Cache.Insert("tc_students", listDB, null, DateTime.Now.AddSeconds(30), TimeSpan.Zero);
                }
                list = listDB;
            }
            Repeater1.DataSource = list;
            Repeater1.DataBind(); 
            #endregion
        }
    }

WebForm_cache.aspx.cs