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  • MVC在filter中如何获取控制器名称和Action名称

    使用ActionExecutingContext对象可以获取控制器名称、Action名称、参数名称以及参数值。路由和Action返回值不影响结果。

    在代码中

    [AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
    public class ViewLogAttribute : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            base.OnActionExecuting(filterContext);
        }
    }

    1.获取控制器名称代码 

     var controllerName = filterContext.ActionDescriptor.ControllerDescriptor.ControllerName;

    var controllerName = HttpContext.Current.Request.RequestContext.RouteData.Values["Controller"];

    2.获取Action名称代码

    var actionName = filterContext.ActionDescriptor.ActionName;

     

    var actionName = HttpContext.Current.Request.RequestContext.RouteData.Values["Action"];

     3.获取Action参数名称

    //获取参数数组
    var arrParameter = filterContext.ActionDescriptor.GetParameters();
    //根据索引获取对应参数名
    var paramName = arrParameter[0].ParameterName;

    4.获取参数值

    var parameterValue = filterContext.Controller.ValueProvider.GetValue(paramName).RawValue;

    如果可以确定参数名称可以直接用ActionParameters通过Key来获取,Key指参数名称

    var parameterValue = filterContext.ActionParameters["KeyName"];
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  • 原文地址:https://www.cnblogs.com/paulhe/p/4138187.html
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