没有为"Microsoft.AspNetCore.Mvc.ViewFeatures.ITempDataDictionaryFactory"类型提供服务

Question

我遇到了这个问题:没有注册"Microsoft.AspNetCore.Mvc.ViewFeatures.ITempDataDictionaryFactory"类型的服务.在asp.net核心1.0中,似乎当动作尝试渲染视图时我有异常.

我搜索了很多,但我没有找到解决方案,如果有人可以帮我弄清楚发生了什么,我怎么能解决它,我会很感激.

我的代码如下:

我的project.json文件

{
  "dependencies": {
    "Microsoft.NETCore.App": {
      "version": "1.0.0",
      "type": "platform"

    },
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.0",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0-rc2-final",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",
    "EntityFramework.Commands": "7.0.0-rc1-final"
  },

  "tools": {
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final"
  },

  "frameworks": {
    "netcoreapp1.0": {
      "imports": [
        "dnxcore50",
        "portable-net45+win8"
      ]
    }
  },

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },

  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },

  "publishOptions": {
    "include": [
      "wwwroot",
      "web.config"
    ]
  },

  "scripts": {
    "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ]
  }
}

我的Startup.cs文件

using System;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Routing;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using OdeToFood.Services;

namespace OdeToFood
{
    public class Startup
    {
        public IConfiguration configuration { get; set; }
        // 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 http://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {

            services.AddScoped<IRestaurantData, InMemoryRestaurantData>();
            services.AddMvcCore();
            services.AddSingleton(provider => configuration);
        }

        // 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)
        {

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

            app.UseFileServer();

            app.UseMvc(ConfigureRoutes);

            app.Run(async (context) =>
            {
                await context.Response.WriteAsync("Hello World!");
            });
        }

        private void ConfigureRoutes(IRouteBuilder routeBuilder)
        {
            routeBuilder.MapRoute("Default", "{controller=Home}/{action=Index}/{id?}");
        }
    }
}

Answer 1

解决方案:使用AddMvc()而不是AddMvcCore()in Startup.cs,它将起作用.

有关原因的详细信息,请参阅此问题:

对于大多数用户,将不会有任何更改,您应该继续在启动代码中使用AddMvc()和UseMvc(...).

对于真正勇敢的人来说,现在有一种配置体验,您可以从最小的MVC管道开始,并添加功能以获得自定义框架.

https://github.com/aspnet/Mvc/issues/2872

您可能还需要添加对Microsoft.AspNetCore.Mvc.ViewFeaturein 的引用project.json

https://www.nuget.org/packages/Microsoft.AspNetCore.Mvc.ViewFeatures/

Answer 2

我知道这是一篇旧帖子，但在将 MVC 项目迁移到 .NET Core 3.0 后遇到此问题时，这是我在 Google 上的最高结果。让我Startup.cs看起来像这样为我修复了它：

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllersWithViews();
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

        app.UseRouting();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}

Answer 3

如果您正在使用,2.0那么请使用services.AddMvcCore().AddRazorViewEngine();您的ConfigureServices

.AddAuthorization()如果你正在使用Authorize属性,请记得添加,否则它将无法正常工作.

Answer 4

在 .NET Core 3.1 中，我必须添加以下内容：

services.AddRazorPages();

在 ConfigureServices()

而下面Configure()的Startup.cs

app.UseEndpoints(endpoints =>
{
     endpoints.MapRazorPages();
}