MVC排除控制器使用情况 [英] MVC exclude controller usage

问题描述

我创建了一个具有10个控制器(部分类)的模板"项目A.所有这些控制器都打包在一个nuget程序包中，并由项目B，C和B消耗.D. nuget在 controllers/_core 文件夹中生成控制器，因此可以很好地将它们分开存储.nuget包没有具有对项目A的dll的引用.

I have created a 'template' project A which has 10 controllers ( partial class ). All these controllers are packed in a nuget package and are consumed by projects B, C & D. The nuget generates the controllers in the folder controllers/_core so they are nicely stored separately. The nuget package does not have a reference to the dll of project A.

现在要解决问题； 可能是所生成的控制器之一需要修改.通过添加第二部分，我们可以添加一些逻辑，但是可能需要覆盖现有方法以在该方法内部添加逻辑.因此(并且由于我在下面添加的原因)，我正在考虑从这些基本控制器继承.当我们继承基本控制器时，它应该被MVC排除.

Now to get down to the problem; It could be that one of the controllers that are generated need to be modified. By adding a second partial we could add some logic, but it could be that we need to override an existing method to add logic inside the method. Because of this ( and because of the reason I added below ) I was thinking to inherit from these base controllers. When we inherit a base controller it should be excluded by MVC.

示例:Image PersonController是使用nuget包在controllers/_core文件夹中创建的，每种方法都是虚拟的.然后，我们将在从PersonController继承的controllers文件夹中创建一个 _PersonController ，为简单起见，仅覆盖index方法.此时，我们要更改路由，以便localhost/Person/index最终出现在 _PersonController 的index方法中，而不是 PersonController 的index方法中. PersonController 应该完全忽略.

Example: Image PersonController was created in the controllers/_core folder by using the nuget package and every method is virtual. We will then create a _PersonController in the controllers folder that inherits from PersonController and for simplicity sake only the index method is overriden. At this time we want to change the routing so localhost/Person/index ends up in the index method of the _PersonController and not that of the PersonController. PersonController should be completely ignored.

我是否是每次需要覆盖时添加自定义路线的唯一选择?还是针对此类问题有更好的解决方案(自定义MVC控制器工厂?)?+如何定义这种路由?

我想继承的其他原因:每次我们更新nuget软件包时，它都会尝试覆盖对消费者项目B，C和Amp中生成的控制器所做的所有更改.D.

Extra reason why I was thinking to inherrit: Every time we do an update of the nuget package it'll try to override all the changes made to the controllers that were generated in the consumer projects B, C & D.

亲切的问候，

Yannick

推荐答案

您可以继承控制器继承.

You can go with controller inheritance.

要忽略不必要的控制器，您需要实现 IApplicationFeatureProvider< ControllerFeature> 或从 ControllerFeatureProvider 派生:

To ignore unnecessary controllers you need to implement IApplicationFeatureProvider<ControllerFeature> or derive from ControllerFeatureProvider :

public class MyControllerFeatureProvider : ControllerFeatureProvider
{
    protected override bool IsController(TypeInfo typeInfo)
    {
        var isController = base.IsController(typeInfo);
        if (isController)
        {
            //overriding isController value
        }
        return isController;
    }
}

然后在您的 Starup.ConfigureServices 中，您需要替换默认的 ControllerFeatureProvider :

Then at your Starup.ConfigureServices you need to replace the default ControllerFeatureProvider:

services.AddMvc()
.ConfigureApplicationPartManager(manager =>
{
    var controllerFeatureProvider =
        manager.FeatureProviders
            .Single(p => p.GetType() == typeof(Microsoft.AspNetCore.Mvc.Controllers.ControllerFeatureProvider));
    manager.FeatureProviders[manager.FeatureProviders.IndexOf(controllerFeatureProvider)] =
       new Attributes.MyControllerFeatureProvider();
});

ASP.NET MVC 5和更早版本

在特定情况下，可以在路由注册中使用名称空间列表，并将 UseNamespaceFallback 设置为 false 以忽略其他名称空间:

ASP.NET MVC 5 and earlier

In your particular case you can go with namespaces list on the route registration and setting UseNamespaceFallback to false to ignore other namespaces:

var myRoute  = routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
        namespaces: new [] {"Namespace1", "Namespace2"}
    );

myRoute.DataTokens["UseNamespaceFallback"] = false;

这篇关于MVC排除控制器使用情况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！