asp.net-web-api - 网页 API : how to read action attribute and parameters from HttpContext

Question

在普通课上，我需要从 HttpContext 中阅读以下内容:

Controller 和 Action 名称

Action 的属性(我可以通过 HttpActionContext.ActionDescriptor.GetCustomAttributes<type>() 获得，但这里我没有 HttpActionContext - 我只有 HttpContext )

阅读参数(如 actionContext.ActionArguments["paramName"] ，但同样 - 我只有一个 HttpContext )

它不是 Action 过滤器，也不是 Controller 类。但是，我可以访问 HttpContext .

Answer 1

From asp.net core 3.0 https://stackoverflow.com/a/60602828/10612695

public async Task Invoke(HttpContext context)
{
    // Get the enpoint which is executing (asp.net core 3.0 only)
    var executingEnpoint = context.GetEndpoint();

    // Get attributes on the executing action method and it's defining controller class
    var attributes = executingEnpoint.Metadata.OfType<MyCustomAttribute>();

    await next(context);

    // Get the enpoint which was executed (asp.net core 2.2 possible after call to await next(context))
    var executingEnpoint2 = context.GetEndpoint();

    // Get attributes on the executing action method and it's defining controller class
    var attributes2 = executingEnpoint.Metadata.OfType<MyCustomAttribute>();
}