CompressFilter 与 asp.net MVC 中的 ExceptionHandlerFilter 冲突

Question

当我在操作上使用 CompressFilter 时，我的 ExceptionHandling 没有命中，它们是一个错误。请求没有返回响应。如果我删除 Compress 过滤器，那么它 returns 错误数组就好了。如何在出现错误时跳过压缩过滤器，或者让压缩过滤器成为第二个错误？

控制器动作

 [HttpPost, CompressAttribute]
 public virtual ActionResult Builder()

Global.asax

GlobalConfiguration.Configuration.Filters.Add(new ExceptionHandlingAttribute());

压缩过滤器

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = true)]
    public class CompressAttribue : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
                var encodingsAccepted = filterContext.HttpContext.Request.Headers["Accept-Encoding"];
                if (string.IsNullOrEmpty(encodingsAccepted)) return;

                encodingsAccepted = encodingsAccepted.ToLowerInvariant();
                var response = filterContext.HttpContext.Response;

                if (encodingsAccepted.Contains("gzip"))
                {
                    response.AppendHeader("Content-encoding", "gzip");
                    response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
                }
                else if (encodingsAccepted.Contains("deflate"))
                {
                    response.AppendHeader("Content-encoding", "deflate");
                    response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
                }
        }
    }

Answer 1

我将它移到了 OnActionExecuted 并且它起作用了，因为它包含一个异常属性。

public override void OnActionExecuted(ActionExecutedContext filterContext)
        {
            base.OnActionExecuted(filterContext);

            if (filterContext.Exception == null)
            {
                var encodingsAccepted = filterContext.HttpContext.Request.Headers["Accept-Encoding"];
                if (!encodingsAccepted.IsBlank())
                {
                    encodingsAccepted = encodingsAccepted.ToLowerInvariant();
                    var response = filterContext.HttpContext.Response;

                    if (encodingsAccepted.Contains("gzip"))
                    {
                        response.AppendHeader("Content-encoding", "gzip");
                        response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
                    }
                    else if (encodingsAccepted.Contains("deflate"))
                    {
                        response.AppendHeader("Content-encoding", "deflate");
                        response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
                    }
                }
            }
        }

CompressFilter 与 asp.net MVC 中的 ExceptionHandlerFilter 冲突

CompressFilter conflicting with ExceptionHandlerFilter in asp.net MVC

asp.net-mvc

exception-handling

action-filter