我在一堂课上有这样的 Autofac 模块;
public class AutofacBusinessModule:Module
{
protected override void Load(ContainerBuilder builder)
{
builder.RegisterType<ProductManager>().As<IProductService>();
builder.RegisterType<EfProductDal>().As<IProductDal>();
builder.RegisterType<CategoryManager>().As<ICategoryService>();
builder.RegisterType<EfCategoryDal>().As<ICategoryDal>();
builder.RegisterType<CustomerManager>().As<ICustomerService>();
builder.RegisterType<EfCustomerDal>().As<ICustomerDal>();
builder.RegisterType<RegionManager>().As<IRegionService>();
builder.RegisterType<EfRegionDal>().As<IRegionDal>();
builder.RegisterType<TerritoryManager>().As<ITerritoryService>();
builder.RegisterType<EfTerritoryDal>().As<ITerritoryDal>();
builder.RegisterType<ShipperManager>().As<IShipperService>();
builder.RegisterType<EfShipperDal>().As<IShipperDal>();
builder.RegisterType<EmployeeManager>().As<IEmployeeDal>();
builder.RegisterType<EfEmployeeDal>().As<IEmployeeDal>();
var assembly = System.Reflection.Assembly.GetExecutingAssembly();
builder.RegisterAssemblyTypes(assembly).AsImplementedInterfaces()
.EnableInterfaceInterceptors(new ProxyGenerationOptions()
{
Selector = new AspectInterceptorSelector()
}).SingleInstance();
}
我的 API 代码就在那里;
[Route("api/[controller]")]
[ApiController]
public class ProductsController : Controller
{
private readonly IProductService _productService;
public ProductsController(IProductService productService)
{
_productService = productService;
}
[HttpGet("getall")]
public IActionResult GetAllProducts()
{
var result = _productService.GetAll();
if (result.Success)
{
return Ok(result);
}
return BadRequest(result);
}
}
}
我将其添加到program.cs上,但不起作用,如果较低,我使用.net 6,我会像这样修复它,但我不知道如何修复.net 6,因为启动不再存在。
IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.UseServiceProviderFactory(new AutofacServiceProviderFactory())
.ConfigureContainer<ContainerBuilder>(builder =>
{
builder.RegisterModule(new AutofacBusinessModule());
});
我该如何解决这个问题?
它给了我这个错误
System.InvalidOperationException:尝试激活“TAO.WebApi.Controllers.ProductsController”时无法解析类型“TAO.Business.Abstract.IProductService”的服务。 在 Microsoft.Extensions.DependencyInjection.ActivatorUtilities.GetService(IServiceProvider sp,类型 type,类型 requiredBy,布尔 isDefaultParameterRequired) 在 lambda_method3( 闭包 , IServiceProvider , Object[] ) 在 Microsoft.AspNetCore.Mvc.Controllers.ControllerActivatorProvider.<>c__DisplayClass7_0.b__0(ControllerContext controllerContext) 在 Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass6_0.g__CreateController|0(ControllerContext controllerContext) 在 Microsoft.AspNetCore.Mvc.Infrastruct.ControllerActionInvoker.Next(状态&下一个,范围&范围,对象&状态,布尔& isCompleted) 在 Microsoft.AspNetCore.Mvc.Infrastruct.ControllerActionInvoker.InvokeInnerFilterAsync() --- 先前位置的堆栈跟踪结束 --- 在 Microsoft.AspNetCore.Mvc.Infrastruct.ResourceInvoker.g__Awaited|20_0(ResourceInvoker 调用程序、任务lastTask、状态下一个、范围范围、对象状态、布尔值已完成) 在 Microsoft.AspNetCore.Mvc.Infrastruct.ResourceInvoker.g__Awaited|17_0(ResourceInvoker 调用程序、任务任务、IDisposable 范围) 在 Microsoft.AspNetCore.Mvc.Infrastruct.ResourceInvoker.g__Awaited|17_0(ResourceInvoker 调用程序、任务任务、IDisposable 范围) 在 Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(端点端点、任务 requestTask、ILogger 记录器) 在 Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext 上下文) 在 Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext) 在 Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext,ISwaggerProvider swaggerProvider) 在 Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext 上下文)
HEADERS
=======
Accept: */*
Connection: keep-alive
Host: localhost:7019
User-Agent: PostmanRuntime/7.30.0
Accept-Encoding: gzip, deflate, br
Postman-Token: fbff062e-ca49-4f37-afc5-e8785afbd43c
尝试使用迁移文档中的以下代码:
builder.Host.UseServiceProviderFactory(new AutofacServiceProviderFactory());
// Register services directly with Autofac here. Don't
// call builder.Populate(), that happens in AutofacServiceProviderFactory.
builder.Host.ConfigureContainer<ContainerBuilder>(builder => builder.RegisterModule(new AutofacBusinessModule()));
请注意,“旧”通用托管模型在 .NET 6 中仍然有效,不需要使用新的最小托管模型(但您不仅需要将
CreateHostBuilder
方法,还需要将旧 Program.Main
的内容复制到新的 Program
顶级语句文件)。