来自全局错误处理程序的控制器和操作

Question

我正在将 Web api 从 .Net 迁移到 .NetCore。

我们有一个自定义的 ExceptionFilterAttribute 来集中处理错误。像这样的：

public class HandleCustomErrorAttribute : ExceptionFilterAttribute
{
   public override void OnException(HttpActionExecutedContext filterContext)
   {
     // Error handling routine
   }
}

通过一些搜索，我设法在 .Net Core 上创建了类似的东西

public static class ExceptionMiddlewareExtensions
    {
        public static void ConfigureExceptionHandler(this IApplicationBuilder app)
        {
            app.UseExceptionHandler(appError =>
            {
                appError.Run(async context =>
                {
                    context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
                    context.Response.ContentType = "application/json";

                    var contextFeature = context.Features.Get<IExceptionHandlerFeature>();
                    if (contextFeature != null)
                    {
                        //logger.LogError($"Something went wrong: {contextFeature.Error}");

                        await context.Response.WriteAsync(new ErrorDetails()
                        {
                            StatusCode = context.Response.StatusCode,
                            Message = "Internal Server Error."
                        }.ToString());
                    }
                });
            });
        }
    }

我需要找到一种方法来访问 .Net Core 版本中的 .Net 中可用的这 3 个信息：

filterContext.ActionContext.ActionDescriptor.ActionName;
filterContext.ActionContext.ControllerContext.ControllerDescriptor.ControllerName;
HttpContext.Current.Request.Url.ToString();

有可能吗？

Answer 1

对于注册ExceptionFilter和获取请求路径的完整解决方案，您可以尝试

1. ExceptinoFilter

   public class ExceptinoFilter : IExceptionFilter
   {
           public void OnException(ExceptionContext context)
           {
           string controllerName = context.RouteData.Values["controller"].ToString();
           string actionName = context.RouteData.Values["action"].ToString();
           var request = context.HttpContext.Request;
           var requestUrl = request.Scheme + "://" + request.Host + request.Path;
           }
   }
   

2. 注册

   public void ConfigureServices(IServiceCollection services)
   {
       services.AddControllersWithViews(options => {
           options.Filters.Add(new ExceptinoFilter());
       });
   }