public class HijackErrorFilterAttribute : ExceptionFilterAttribute, IExceptionFilter
    {
        static Exception GetInnerException(Exception ex)
        {
            return ex.InnerException == null ? ex : GetInnerException(ex.InnerException);
        }

        public void OnException(ExceptionContext filterContext)
        {
            string SpliteErrorText(string exceptionString)
            {
                var errorMsg = exceptionString;
                errorMsg = errorMsg.Length > 64 ? errorMsg.Substring(0, 64) : errorMsg;
                var index = errorMsg.IndexOf("。");
                errorMsg = index > 0 ? errorMsg.Substring(0, index + 1) : errorMsg;
                errorMsg = errorMsg.ToISO_8859_1();
                return errorMsg;
            }

            switch (filterContext.Exception)
            {
                case DbEntityValidationException ex:
                    var errorContent = new StringBuilder();
                    foreach (var dbEntityValidationResult in ex.EntityValidationErrors) foreach (var error in dbEntityValidationResult.ValidationErrors) errorContent.Append(error.ErrorMessage);
                    var errorMsg = errorContent.ToString();
                    Loger.Log.Info(errorMsg, filterContext.Exception);
                    filterContext.Result = new HttpStatusCodeResult((HttpStatusCode)507, SpliteErrorText(errorMsg));
                    break;
                case InfoException ex:
                    Loger.Log.Info(ex);
                    filterContext.Result = new HttpStatusCodeResult((HttpStatusCode)506, SpliteErrorText(GetInnerException(filterContext.Exception).Message));
                    break;
                default:
                    Loger.Log.Error(filterContext.Exception);
                    filterContext.Result = new HttpStatusCodeResult(HttpStatusCode.InternalServerError, SpliteErrorText(filterContext.Exception.Message));
                    break;
            }
            filterContext.ExceptionHandled = true;
        }

        public override void OnException(HttpActionExecutedContext actionExecutedContext)
        {
            Loger.Log.Error(actionExecutedContext.Exception);
            base.OnException(actionExecutedContext);
        }
    }