如何登录哪个操作方法是在在的WebAPI控制器执行 [英] How to log which action method is executed in a controller in webapi

问题描述

在的WebAPI，反正是有记录的操作方法的名称为被调用执行或使用动作过滤器。我使用的RouteData属性，如下图所示，但动作值不包含任何值。有什么办法，我可以得到在过滤器动作的名称。

 公共类LogActionFilter：ActionFilterAttribute
{
    公共覆盖无效OnActionExecuted（HttpActionExecutedContext actionExecutedContext）
    {
        日志（actionExecutedContext.ActionContext.RequestContext.RouteData）;        base.OnActionExecuted（actionExecutedContext）;
    }    私人无效日志（System.Web.Http.Routing.IHttpRouteData httpRouteData）
    {
        VAR controllerName = httpRouteData.Values​​ [控制器];        VAR actionName = httpRouteData.Values​​ [行动];        VAR消息=的String.Format（控制器：{0}，动作：{1}，controllerName，actionName）;        的Debug.WriteLine（消息，行动过滤日志）;
    }
}
 

解决方案

您可以找到 actionExecutedContext.ActionContext.ActionDescriptor.ActionName 属性（String）操作名称。

您也可以施放该 ActionDescriptor 到 ReflectedHttpActionDescriptor 并获得的MethodInfo实例这是所谓的，如果你需要的不仅仅是字符串名​​称的更多信息。

  VAR reflectedActionDescriptor = actionExecutedContext.ActionContext.ActionDescriptor
       作为ReflectedHttpActionDescriptor;
 //这里检查reflectedActionDescriptor.MethodInfo
 

In WebAPI, is there anyway to log the name of the action method for a controller that gets called or executed using an action filter. I am using the RouteData property as shown below, but the action value does not contain any value. Is there any way I can get the action name in the filter.

public class LogActionFilter : ActionFilterAttribute
{
    public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
    {
        Log(actionExecutedContext.ActionContext.RequestContext.RouteData);

        base.OnActionExecuted(actionExecutedContext);
    }

    private void Log(System.Web.Http.Routing.IHttpRouteData httpRouteData)
    {
        var controllerName = httpRouteData.Values["controller"];

        var actionName = httpRouteData.Values["action"];

        var message = String.Format("controller:{0}, action:{1}", controllerName, actionName);

        Debug.WriteLine(message, "Action Filter Log");
    }
}

解决方案

You can find the action name in the actionExecutedContext.ActionContext.ActionDescriptor.ActionName property (string).

You can also cast that ActionDescriptor to ReflectedHttpActionDescriptor and obtain an instance of the MethodInfo that was called, if you need more information than just string name.

 var reflectedActionDescriptor = actionExecutedContext.ActionContext.ActionDescriptor 
       as ReflectedHttpActionDescriptor;
 //inspect reflectedActionDescriptor.MethodInfo here 

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