c# - ASP.NET Core MVC 主项目无法在单独的程序集中访问 Controller

Question

我想使用一个单独的项目来存储我的测试应用程序的 Controller 。由于 ASP.NET Core 的工作方式，您需要使用要添加的程序集调用 services.AddMvc().AddApplicationPart。

我使用 Visual Studio 2017(因此不再有 project.json)

问题是我无法访问我想要包含的程序集!

我在我的项目中添加了引用:

此外，我决定像这样为 AppDomian 使用 polyfill(以达到我需要的组装):

 public class AppDomain
    {
        public static AppDomain CurrentDomain { get; private set; }

        static AppDomain()
        {
            CurrentDomain = new AppDomain();
        }

        public Assembly[] GetAssemblies()
        {
            var assemblies = new List<Assembly>();
            var dependencies = DependencyContext.Default.RuntimeLibraries;
            foreach (var library in dependencies)
            {
                if (IsCandidateCompilationLibrary(library))
                {
                    var assembly = Assembly.Load(new AssemblyName(library.Name));
                    assemblies.Add(assembly);
                }
            }
            return assemblies.ToArray();
        }

        private static bool IsCandidateCompilationLibrary(RuntimeLibrary compilationLibrary)
        {
            return compilationLibrary.Name == ("TrainDiary")
                || compilationLibrary.Dependencies.Any(d => d.Name.StartsWith("TrainDiary"));
        }
    }

但是当我使用它时，列表中只有一个程序集(只链接到这个项目本身，没有链接到 Controller )。

这是我的Startup.cs:

public class Startup
    {

        public IConfigurationRoot Configuration { get; }
        public Startup(IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
                .AddEnvironmentVariables();

            Configuration = builder.Build();
        }
        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            var assemblies = GetAssemblies(); // I tought I will find there Assmbly I need but no

            services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
            services.AddReact();
            services.AddMvc();
            services.AddLogging();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseReact(config =>
            {
            });

            app.UseStaticFiles();
            app.UseMvcWithDefaultRoute();
        }

        public List<Assembly> GetAssemblies()
        {
            Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
            List<Assembly> currentAssemblies = new List<Assembly>();

            foreach (Assembly assembly in assemblies)
            {
                if (assembly.GetName().Name.Contains("TrainDiary"))
                {
                    currentAssemblies.Add(assembly);
                }
            }

            return currentAssemblies;
        }

    }

如何让我的项目也查找其他项目中的 Controller ？为什么它看不到呢？

UPD

试图像这样直接制作 exapmle在这里。

所以我的代码开始是这样的:

var controllersAssembly = Assembly.Load(new AssemblyName("TrainDiary.Controllers")); 
services.AddMvc()
        .AddApplicationPart(controllersAssembly)
        .AddControllersAsServices();

并且成功获取到程序集:

但是当我尝试调用 Controller 函数时 - 它失败了!

Controller 代码:

[Route("Login")]
    public class LoginController: Controller
    {
        [Route("Login/Test")]
        public void Test(string name, string password)
        {
            string username = name;
            string pass = password;
        }
    }

要求:

UPD2:

出于某种原因，删除 Routes 有帮助:

public class LoginController: Controller
    {
        public void Test(string name, string password)
        {
            string username = name;
            string pass = password;
        }
    }

Answer 1

所以，如果总结一下:

1) 您需要使用 Add Reference 到您的独立项目 Controller 。

2)配置服务(部分):

public void ConfigureServices(IServiceCollection services)
{
  var controllersAssembly = Assembly.Load(newAssemblyName("SomeProject.MeetTheControllers"));

  services.AddMvc().AddApplicationPart(controllersAssembly).AddControllersAsServices();
}

3) 我的配置看起来像这样(注意 UseMvcWithDefaultRoute):

   // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseReact(config =>
            {
            });

            app.UseStaticFiles();
            app.UseMvcWithDefaultRoute();
        }

所以在我这样的 Controller 中，你不需要在这里放置 Routes 属性，只需通过 Some/Test url 调用它

namespace SomeProject.MeetTheControllers.Test
{
    using Microsoft.AspNetCore.Mvc;

    public class SomeController: Controller
    {
        public void Test(string name, string notname)
        {
            string username = name;
            string nan = notname;
        }
    }
}