Autofac泛型仓储多DbContext注册异常问题求助

C#项目使用Ardalis Specification库，需操作两个不同的DbContext。在Autofac中注册实现IRepository、IReadRepository的泛型仓储后，使用关联SapScriptDbContext的仓储时抛出异常：

System.ArgumentException: Cannot create a DbSet for 'CooisHeader' because this type is not included in the model for the context.

相关代码 #

仓储与DbContext实现 #

public class AppEfRepository<T> : RepositoryBase<T>,IReadRepository<T>,IRepository<T> where T : class,IAggregateRoot
{
    public AppEfRepository(ApplicationDbContext context):base(context)
    {
        
    }
}

public class SapScriptDbContext : DbContext
{
    public SapScriptDbContext(DbContextOptions<SapScriptDbContext> options):base(options)
    {
        
    }
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<CooisHeader>().ToTable("CooisHeader");
        modelBuilder.Entity<CooisComponent>().ToTable(nameof(CooisComponent));

    }

    public DbSet<CooisHeader> CooisHeader => Set<CooisHeader>();
    public DbSet<CooisComponent> CooisComponent => Set<CooisComponent>();
}

Autofac注册模块 #

public class AutofacInfrastructureModule : Module
{
    private readonly List<Assembly> _assemblies = new List<Assembly>();
    public AutofacInfrastructureModule(Assembly? callingAssembly = null)
    {
        AddToAssembliesifNotNull(callingAssembly);
    }

    private void AddToAssembliesifNotNull(Assembly callingAssembly)
    {
        if (callingAssembly != null)
        {
            _assemblies.Add(callingAssembly);
        }
    }

    protected override void Load(ContainerBuilder builder)
    {
        LoadAssemblies();
        RegisterEf(builder);
    }

    private void LoadAssemblies()
    {
        var coreAssembly = Assembly.GetAssembly(typeof(CooisHeader));
        var appCore = Assembly.GetAssembly((typeof(Cut)));
        var infrastructureAssembly = Assembly.GetAssembly(typeof(AutofacInfrastructureModule));
        AddToAssembliesifNotNull(coreAssembly);
        AddToAssembliesifNotNull(appCore);
        AddToAssembliesifNotNull(infrastructureAssembly);
    }

    private void RegisterEf(ContainerBuilder builder)
    {
        builder.RegisterGeneric(typeof(SapScriptEfRepository<>))
            .As(typeof(IRepository<>))
            .As(typeof(IReadRepository<>))
            .InstancePerLifetimeScope();
        // 注释掉下面这段代码时程序可正常运行
        builder.RegisterGeneric(typeof(AppEfRepository<>))
            .As(typeof(IRepository<>))
            .As(typeof(IReadRepository<>))
            .InstancePerLifetimeScope();

    }
}

Program.cs中的DbContext配置 #

var connectionString = builder.Configuration.GetConnectionString("SapScriptConnection");
var defaultConnectionString = builder.Configuration.GetConnectionString("DefaultConnection");
builder.Services.AddDbContext<SapScriptDbContext>(cfg => cfg.UseSqlServer(connectionString));
builder.Services.AddDbContext<ApplicationDbContext>(cfg => cfg.UseSqlServer(defaultConnectionString));

异常堆栈跟踪 #

System.ArgumentException: Cannot create a DbSet for 'CooisHeader' because this type is not included in the model for the context.
at Cutter.Pages.IndexModel.OnGetDataAsync(String pro) in C:\Users\boksand-adm\source\repos\Cutter\Cutter\Pages\Index.cshtml.cs:line 95
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.ExecutorFactory.GenericTaskHandlerMethod.Convert[T](Object taskAsObject)
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.ExecutorFactory.GenericTaskHandlerMethod.Execute(Object receiver, Object[] arguments)
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeHandlerMethodAsync()
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeNextPageFilterAsync()
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Rethrow(PageHandlerExecutedContext context)
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeInnerFilterAsync()
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

已尝试的解决方式 #

• 使用Keyed注册管理多DbContext仓储，仍出现相同异常
• 目前仅能通过逐个注册实体对应的仓储解决问题，但希望采用泛型注册方式：

builder.RegisterType<SapScriptEfRepository<CooisHeader>>().As<IRepository<CooisHeader>>();
builder.RegisterType<SapScriptEfRepository<CooisComponent>>().As<IRepository<CooisComponent>>();
builder.RegisterType<AppEfRepository<Cut>>().As<IRepository<Cut>>();

内容的提问来源于stack exchange，提问作者Danijel Boksan