asp.net-mvc - MVC.net 禁用特定方法的属性

Question

我的 BaseController 类上有一个操作过滤器属性:

<CompressFilter()> _
Public Class BaseController

因此，此过滤器适用于我的应用程序的所有 Controller 中的所有方法。
是否可以为某些特定方法禁用此过滤器？

Answer 1

如果您有权访问 CompressFilter 的代码，那就是。您可以添加第二个属性。例如 NoCompressAttribute。在 CompressFilter 的 OnActionExecuting 方法中，您将查看 ActionDescriptors，如果应用了 NoCompressAttribute，您将不会进行压缩。

编辑:这是代码

 public class CompressFilter : ActionFilterAttribute
    {
        public bool Compress { get; set; }
        public CompressFilter()
        {
            Compress = true;
        }

        public CompressFilter(bool compress)
        {
            Compress = compress;
        }

        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            var compressAttribs = filterContext.ActionDescriptor.GetCustomAttributes(typeof(CompressFilter), true);
            foreach (var item in compressAttribs)
            {
                if (!((CompressFilter)item).Compress)
                {
                    return;
                }
            }

            HttpRequestBase request = filterContext.HttpContext.Request;

            string acceptEncoding = request.Headers["Accept-Encoding"];

            if (string.IsNullOrEmpty(acceptEncoding)) return;

            acceptEncoding = acceptEncoding.ToUpperInvariant();

            HttpResponseBase response = filterContext.HttpContext.Response;

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

然后在您不希望压缩的操作上执行以下操作:

[CompressFilter(false)]
public virtual ActionResult Index()
{
}

希望有帮助