如何在 ActionFilter 中获取参数的所有属性？

Question

我有一个控制器：

public class CatController
{

public something DoStuff([FromBody]string bibble)
{

}

}

我想创建一个 ActionFilter 并循环遍历每个参数，并查看该参数具有哪些属性，例如 [FromBody]。我该怎么做？

public class InspectParametersActionFilter : ActionFilterAttribute, IActionFilter
{
    public override void OnActionExecuting(HttpActionContext actionContext)
    {
        actionContext.ActionDescriptor.?
        actionContext.ActionArguments.?
    }
}

Answer 1

public override void OnActionExecuting(ActionExecutingContext filterContext)
{
    var allCustomAttributes = filterContext.ActionDescriptor.GetParameters()
        .Select(s => s.GetCustomAttributes(false));
}