public class ResponseOutputFormatter : TextOutputFormatter
    {
        public ResponseOutputFormatter(string contentType)
        {
            SupportedMediaTypes.Add(MediaTypeHeaderValue.Parse(contentType));

            SupportedEncodings.Add(Encoding.UTF8);
            SupportedEncodings.Add(Encoding.Unicode);
        }

        public override Task WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding)
        {
            var obj = context.Object;
            var response = context.HttpContext.Response;
          
            var settings = new JsonSerializerSettings
            {
                DateFormatString = "yyyy'-'MM'-'dd' 'HH':'mm':'ss",
                ContractResolver = new CamelCasePropertyNamesContractResolver(),
            };

            // 这里我需要判断下当前请求的filters里是否包含NoOutputFormat，
　　　　　　　// 如果不包含我就返回自定义的数据结构

            if (!filters.Any(a => a is NoOutputFormatAttribute))
            {
                obj = new HttpMessage() { Status = response.StatusCode, Data = obj };
            }

            string json = JsonConvert.SerializeObject(obj, settings);

            return response.WriteAsync(json);
        }
    }

action 是这样的：加了 NoOutputFormatAttribute filter:
        [HttpGet]
        [NoOutputFormat]
        public string Get()
        {
            try
            {
                throw new IndexOutOfRangeException("Hi, Man... 索引超出范围");
            }
            catch (Exception e)
            {
                this.logger.LogError(e, e.StackTrace, new string[] { "附加参数1", "附加参数2" });
            }

            return string.Empty;
        }