public class JsonNetResult : JsonResult    {        public JsonNetResult()        {            Settings = new JsonSerializerSettings            {                ReferenceLoopHandling = ReferenceLoopHandling.Ignore,//忽略循环引用，如果设置为Error，则遇到循环引用的时候报错（建议设置为Error，这样更规范）                DateFormatString = "yyyy-MM-dd HH:mm:ss",//日期格式化，默认的格式也不好看                ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()//json中属性开头字母小写的驼峰命名            };        }        public JsonSerializerSettings Settings { get; private set; }        public override void ExecuteResult(ControllerContext context)        {            if (context == null)                throw new ArgumentNullException("context");            if (this.JsonRequestBehavior == JsonRequestBehavior.DenyGet                && string.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase))                throw new InvalidOperationException("JSON GET is not allowed");            HttpResponseBase response = context.HttpContext.Response;            response.ContentType = string.IsNullOrEmpty(this.ContentType) ? "application/json" : this.ContentType;            if (this.ContentEncoding != null)                response.ContentEncoding = this.ContentEncoding;            if (this.Data == null)                return;            var scriptSerializer = JsonSerializer.Create(this.Settings);            scriptSerializer.Serialize(response.Output, this.Data);        }    }