/// <summary>
        /// 根据CourseId获取数据
        /// </summary>
        /// <param name="context"></param>
        public void FindById(HttpContext context)
        {
            var zwJson = new ZwJson();
            CourseService courseService = new CourseService(_session);
            var id = context.Request.Params["id"];

            var data = courseService.GetCourse(id);
            data.ClickCount++;
            courseService.SaveOrUpdate(data);

            var course = courseService.FindById(id);
            zwJson.Data = course;
            zwJson.IsSuccess = true;
            zwJson.JsExecuteMethod = "Ajax_FindById";
            context.Response.Write(_jss.Serialize(zwJson));
        }