我将一个 asp.net 核心项目从 2.2 版迁移到 3.1 版。我已经添加了所有依赖项和 docker 相关组件。它编译得很好,但是在运行项目时我得到了下面提到的错误:
引发异常:Microsoft.Extensions.DependencyInjection.dll 中的“System.AggregateException”Microsoft.Extensions.DependencyInjection.dll 中发生“System.AggregateException”类型的未处理异常:“无法构造某些服务”堆栈跟踪:在Microsoft.Extensions.DependencyInjection.ServiceProvider..ctor(IEnumerable
1 serviceDescriptors, ServiceProviderOptions options) at Microsoft.Extensions.DependencyInjection.ServiceCollectionContainerBuilderExtensions.BuildServiceProvider(IServiceCollection services, ServiceProviderOptions options) at Microsoft.Extensions.DependencyInjection.DefaultServiceProviderFactory.CreateServiceProvider(IServiceCollection containerBuilder) at Microsoft.Extensions.Hosting.Internal.ServiceFactoryAdapter
1.CreateServiceProvider(Object containerBuilder) 在 Microsoft.Extensions.Hosting.HostBuilder.CreateServiceProvider() 在 Microsoft.Extensions.Hosting.HostBuilder.Build() 在 Sample.API.Program。 /src/QueryStack/Sample.API/Program.cs:line 20 中的 Main(String[] args) 程序“kubectl.exe”已退出,代码为 -1 (0xffffffff)。
这是我的代码:
程序.cs
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
namespace Sample.API
{
public class Program
{
public static void Main(string[] args)
{
// Use the W3C Trace Context format to propagate distributed trace identifiers.
// See https://devblogs.microsoft.com/aspnet/improvements-in-net-core-3-0-for-troubleshooting-and-monitoring-distributed-apps/
Activity.DefaultIdFormat = ActivityIdFormat.W3C;
CreateHostBuilder(args).Build().Run();
}
public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseKestrel(options => options.AddServerHeader = false);
webBuilder.UseStartup<Startup>();
});
}
}
启动.cs
using Sample.API.Constants;
using Sample.API.Extensions;
using Sample.API.GraphQL;
using Sample.API.Middleware;
using Boxed.AspNetCore;
using GraphQL.Server;
using GraphQL.Server.Ui.Playground;
using GraphQL.Server.Ui.Voyager;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Diagnostics.HealthChecks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
namespace Sample.API
{
public class Startup
{
private readonly IConfiguration configuration;
private readonly IWebHostEnvironment webHostEnvironment;
/// <summary>
/// Initializes a new instance of the <see cref = "Startup"/> class.
/// </summary>
/// <param name = "configuration">The application configuration, where key value pair settings are stored. See
/// http://docs.asp.net/en/latest/fundamentals/configuration.html</param>
/// <param name = "webHostEnvironment">The environment the application is running under. This can be Development,
/// Staging or Production by default. See http://docs.asp.net/en/latest/fundamentals/environments.html</param>
public Startup(IConfiguration configuration, IWebHostEnvironment webHostEnvironment)
{
this.configuration = configuration;
this.webHostEnvironment = webHostEnvironment;
}
/// <summary>
/// Configures the services to add to the ASP.NET Core Injection of Control (IoC) container. This method gets
/// called by the ASP.NET runtime. See
/// http://blogs.msdn.com/b/webdev/archive/2014/06/17/dependency-injection-in-asp-net-vnext.aspx
/// </summary>
public virtual void ConfigureServices(IServiceCollection services) =>
services
.AddCosmosDBConfiguration(configuration)
.AddAutoMapperConfiguration()
.AddCustomResponseCompression(configuration)
.AddCustomCors()
.AddCustomOptions(configuration)
.AddHttpContextAccessor()
.AddCustomRouting()
.AddCustomStrictTransportSecurity()
.AddCustomHealthChecks()
.AddServerTiming()
.AddControllers()
.AddCustomJsonOptions(webHostEnvironment)
.AddCustomMvcOptions(configuration)
.Services
.AddCustomGraphQL(configuration, webHostEnvironment)
.AddGraphQLResolvers()
.AddGraphQLResponse()
.AddProjectRepositories()
.AddProjectSchemas();
/// <summary>
/// Configures the application and HTTP request pipeline. Configure is called after ConfigureServices is
/// called by the ASP.NET runtime.
/// </summary>
public virtual void Configure(IApplicationBuilder application) =>
application
.UseIf(
this.webHostEnvironment.IsDevelopment(),
x => x.UseServerTiming())
.UseForwardedHeaders()
.UseResponseCompression()
.UseFetchLocaleMiddleware()
.UseIf(
!this.webHostEnvironment.IsDevelopment(),
x => x.UseHsts())
.UseIf(
this.webHostEnvironment.IsDevelopment(),
x => x.UseDeveloperExceptionPage())
.UseRouting()
.UseCors(CorsPolicyName.AllowAny)
.UseEndpoints(
builder =>
{
builder
.MapHealthChecks("/status")
.RequireCors(CorsPolicyName.AllowAny);
builder
.MapHealthChecks("/status/self", new HealthCheckOptions() { Predicate = _ => false })
.RequireCors(CorsPolicyName.AllowAny);
})
.UseWebSockets()
// Use the GraphQL subscriptions in the specified schema and make them available at /graphql.
.UseGraphQLWebSockets<MainSchema>()
// Use the specified GraphQL schema and make them available at /graphql.
.UseGraphQL<MainSchema>()
.UseIf(
this.webHostEnvironment.IsDevelopment(),
x => x
// Add the GraphQL Playground UI to try out the GraphQL API at /.
.UseGraphQLPlayground(new GraphQLPlaygroundOptions() { Path = "/" })
// Add the GraphQL Voyager UI to let you navigate your GraphQL API as a spider graph at /voyager.
.UseGraphQLVoyager(new GraphQLVoyagerOptions() { Path = "/voyager" }));
}
}
我遵循了以下提到的模板指南: https ://github.com/Dotnet-Boxed/Templates/blob/master/Docs/GraphQL.md
基于以上内容,我创建了一个工作正常但不是上述代码的 POC。
任何人都可以通过提供他们的指导来帮助我解决这个问题