从操作过滤器属性重定向 [英] Redirect From Action Filter Attribute

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本文介绍了从操作过滤器属性重定向的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

ActionFilterAttribute 中进行重定向的最佳方法是什么.我有一个名为 IsAuthenticatedAttributeFilterActionFilterAttribute,它检查了会话变量的值.如果变量为 false,我希望应用程序重定向到登录页面.我更喜欢使用路由名称 SystemLogin 进行重定向,但是此时任何重定向方法都可以.

What is the best way to do a redirect in an ActionFilterAttribute. I have an ActionFilterAttribute called IsAuthenticatedAttributeFilter and that checked the value of a session variable. If the variable is false, I want the application to redirect to the login page. I would prefer to redirect using the route name SystemLogin however any redirect method at this point would be fine.

推荐答案

Set filterContext.Result

带有路线名称:

filterContext.Result = new RedirectToRouteResult("SystemLogin", routeValues);

您还可以执行以下操作:

You can also do something like:

filterContext.Result = new ViewResult
{
    ViewName = SharedViews.SessionLost,
    ViewData = filterContext.Controller.ViewData
};

<小时>

如果你想使用RedirectToAction:

您可以在您的控制器(最好在其基本控制器)上创建一个公共 RedirectToAction 方法,该方法只需从 RedirectToAction>System.Web.Mvc.Controller.添加此方法允许从过滤器公开调用您的 RedirectToAction.

You could make a public RedirectToAction method on your controller (preferably on its base controller) that simply calls the protected RedirectToAction from System.Web.Mvc.Controller. Adding this method allows for a public call to your RedirectToAction from the filter.

public new RedirectToRouteResult RedirectToAction(string action, string controller)
{
    return base.RedirectToAction(action, controller);
}

那么您的过滤器将类似于:

Then your filter would look something like:

public override void OnActionExecuting(ActionExecutingContext filterContext)
{
    var controller = (SomeControllerBase) filterContext.Controller;
    filterContext.Result = controller.RedirectToAction("index", "home");
}

这篇关于从操作过滤器属性重定向的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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