asp.net mvc，基于aop实现的接口访问统计、接口缓存等

/// <summary>
    /// 记录访问日志以及站点安全检查
    /// </summary>
    public class ApiLogAttribute : ActionFilterAttribute
    {
        #region 属性

         private string logType;
         public ApiLogAttribute(string type)
        {
            logType = type;
        }

        #endregion

        public override void OnActionExecuting(HttpActionContext actionContext)
        {
            if (string.IsNullOrEmpty(logType))
                return;
            AccessSummaryHelper.AddOneVisit(logType);//自己实现接口访问量统计的代码

           
            //这里可以约定 增加一些接口校验，避免无效的请求。return;
                
            
            //校验不通过的，则直接返回，不会进入方法体内
            actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.OK, new ApiResult{ code=1,Msg="无效的请求。"});
 } 
}

public class ApiCacheAttribute : ActionFilterAttribute//,System.Web.Mvc.ActionFilterAttribute
    {
　　　　//设置缓存的时间，默认为1分钟
        private CacheTimeOption cacheTime ;
        public ApiCacheAttribute(CacheTimeOption cachetime = CacheTimeOption.OneMinute)
        {
            cacheTime = cachetime;
        }

        public override void OnActionExecuting(HttpActionContext actionContext)
        {
            base.OnActionExecuting(actionContext);

            string cacheKey = HttpContext.Current.Request.RawUrl;
            ApiResult ret = CacheHelper.Get<ApiResult>(cacheKey);

            //在action执行前终止请求时，应该使用填充方法Response，将不返回action方法体。
            if (ret != null)
            {
                actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.OK, ret);
            }
        }

        public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
        {
            string cacheKey = HttpContext.Current.Request.RawUrl;
            var obj = ((ObjectContent)(actionExecutedContext.Response.Content)).Value;
            
            if (obj != null)
            {
                ApiResult ret = obj as ApiResult;
                if (ret != null)
                {
                    CacheHelper.Set(cacheKey, ret, cacheTime);
                }
            }
        }
    }

public class ApiResult
{
        public int Code{ get; set; }

        public string Msg { get; set; } 

        public object Data { get; set; } 
}

 public class XXController : ApiController
    {
        
        [HttpGet]
        [ApiCache]
        [ApiLog("1.1")]
        public ApiResult GetXX()
        {
                //业务代码略
        }
}