Question

我有自定义属性，我在我的动作方法中使用它。我需要在委托处理程序中访问此属性信息。

Controller A
{
   [MyAttribute]
   public IHttpActionResult MyMethod
}

public class MyHandler : DelegatingHandler
{
   protected override async Task<HttpResponseMessage> SendAsync(
            HttpRequestMessage request, CancellationToken cancellationToken)
   {
     var controllerSelector = GlobalConfiguration.Configuration.Services.GetHttpControllerSelector();
     var controllerDescriptor = controllerSelector.SelectController(request);
     //Here I want to access controllerA action method MyMethod metadata 
     //so I can check if actionmethod has custom attribute or not and do my process
   }
}

在这里，我想访问controllerA操作方法MyMethod元数据，以便检查actionmethod是否具有自定义属性并执行我的流程。请告诉我这个。

Answer 1

我使用了一点点不同的方法，

我使用GlobalConfiguration.Configuration.Services.GetApiExplorer（）。ApiDescriptions并将其与request.RequestUri匹配

  var api = GlobalConfiguration.Configuration.Services.GetApiExplorer().ApiDescriptions.FirstOrDefault(p => string.Compare(p.RelativePath , request.RequestUri.LocalPath.Substring(1), StringComparison.OrdinalIgnoreCase) == 0);

              var MyAttributeInfo =  api.ActionDescriptor.GetCustomAttributes<MyAttribute>().FirstOrDefault();

deleghandler中的Access Controller操作方法属性

1 个答案: