实施＆QUOT;停机维护＆QUOT;页 [英] Implement "Down for maintenance" page

问题描述

我知道我们可以简单地用一个 app_offline.htm 文件做这一点。

I know we could simply use an app_offline.htm file to do this.

不过，我希望能够访问的网站，如果我的IP是1.2.3.4（例如），这样我可以做最后的测试。

But I want to be able access the website if my IP is 1.2.3.4 (for example), so that I can do a final testing.

if( IpAddress != "1.2.3.4" )
{
    return Redirect( offlinePageUrl );
}

我们如何在ASP.NET实现这个MVC 3？

How can we implement this in ASP.NET MVC 3?

推荐答案

您可以使用一个包罗万象的路线与该IP检查的RouteConstraint：

You can use a catch-all route with a RouteConstraint with the IP check:

请确保您先放离线路径。

Make sure you put the offline route first.

routes.MapRoute("Offline", "{controller}/{action}/{id}",
                new
                    {
                        action = "Offline",
                        controller = "Home",
                        id = UrlParameter.Optional
                    },
                new { constraint = new OfflineRouteConstraint() });

和约束code：

public class OfflineRouteConstraint : IRouteConstraint
{
    public bool Match(HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
    {
        // return IpAddress != "1.2.3.4";
    }
}

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