Question

我有三个Repository类，它们是：

 1. ITechniqueRepository 
 2. ITechniqueItemRepository
 3. ITechniqueAssesstmentRepository

还有另一个Service类，即：

ITechniqueService

在ITechniqueService构造函数中，我有以下代码来解析依赖注入。

private readonly ITechniqueRepository _techniqueRepository;
private readonly ITechniqueItemRepository _techniqueItemRepository;
private readonly ITechniqueAssesstmentRepository _techniqueAssesstmentRepository;

    public TechniqueService(            
        ITechniqueRepository techniqueRepository,
        ITechniqueItemRepository techniqueItemRepository,
        ITechniqueAssesstmentRepository techniqueAssesstmentRepository
      ) : base(unitOfWork, settings, logger)
    {
        _techniqueRepository = techniqueRepository;
        _techniqueItemRepository = techniqueItemRepository;
        _techniqueAssesstmentRepository = techniqueAssesstmentRepository;
    }

在我的控制器构造函数中，我有以下代码来解决依赖关系。

private readonly ITechniqueService _techniqueService;
    public TechniqueController(
        ITechniqueService techniqueService
        )
    {
        _techniqueService = techniqueService;
    }

在我的Startup课程中，我有以下代码：

services.AddScoped<ITechniqueRepository, TechniqueRepository>();
services.AddScoped<ITechniqueItemRepository, TechniqueItemRepository>();
services.AddScoped<ITechniqueAssessmentRepository, TechniqueAssessmentRepository>();
services.AddScoped<ITechniqueService, TechniqueService>();

问题是当我执行我的服务时，我得到以下异常作为响应结果。

{

“StatusCode”：3，

“消息”：“尝试激活时无法解析类型'Data.Repositories.ITechniqueAssesstmentRepository'的服务   'Services.TechniqueService'。“，

“MessageDetail”：“at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateArgumentCallSites（Type   serviceType，Type implementationType，ISet 1 callSiteChain, ParameterInfo[] parameters, Boolean throwIfCallSiteNotFound)\r\n at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateConstructorCallSite(Type serviceType, Type implementationType, ISet 1 callSiteChain）\ r \ n at   Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact（ServiceDescriptor   描述符，类型serviceType，ISet 1 callSiteChain)\r\n at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.TryCreateExact(Type serviceType, ISet 1 callSiteChain）\ r \ n at   Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteFactory.CreateCallSite（类型   serviceType，ISet 1 callSiteChain)\r\n at Microsoft.Extensions.DependencyInjection.ServiceProvider.CreateServiceAccessor(Type serviceType, ServiceProvider serviceProvider)\r\n at System.Collections.Concurrent.ConcurrentDictionaryExtensions.GetOrAdd[TKey,TValue,TArg](ConcurrentDictionary 2   字典，TKey键，Func`3 valueFactory，TArg arg）\ r \ n at   Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService（类型   serviceType）\ r \ n at   Microsoft.Extensions.Internal.ActivatorUtilities.GetService（的IServiceProvider   sp，Type type，Type requiredBy，Boolean   isDefaultParameterRequired）\ r \ n在lambda_method（闭包，   IServiceProvider，Object []）\ r \ n at   Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider＆LT;＆GT; c__DisplayClass5_0.g__CreateController | 0（ControllerContext   controllerContext）\ r \ n at   Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next（州及放大器;   接下来，范围＆amp;范围，对象＆amp; state，Boolean＆amp; isCompleted）\ r \ n at   Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__14.MoveNext（个）\ r \ n ---   从抛出异常的先前位置开始的堆栈跟踪结束   --- \ r \ n在System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw（）\ r \ n \ n
  在   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification（任务   任务）\ r \ n at   Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.d__23.MoveNext（）”，       “错误”：{}}

我在哪里弄错了？

解决ASP.NET核心中的依赖注入

0 个答案: