实现自定义的异常处理类

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public class MyExceptionFilter : IExceptionFilter
    {
          public bool AllowMultiple => true;          public async Task ExecuteExceptionFilterAsync(HttpActionExecutedContext actionExecutedContext, CancellationToken cancellationToken)
          {
                // throw new NotImplementedException();
                Exception ex= actionExecutedContext.Exception;
                //Console.WriteLine(ex.ToString());
          }
    }

 

 

注册自定义异常处理类

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public static class WebApiConfig
    {
          public static void Register(HttpConfiguration config)
          {
                config.MapHttpAttributeRoutes();                config.Routes.MapHttpRoute(
                    name: "DefaultApi",
                    routeTemplate: "api/{controller}/{action}/{id}",
                    defaults: new { id = RouteParameter.Optional });

                //config.Filters.Add(new MyFilter());
                config.Filters.Add(new MyExceptionFilter());
          }
    }