在另一个控制器中使用当前的 UserManager

Question

您好，我有 2 个控制器：

• 应用用户控制器
• ApplicationProductController

如何使用ApplicationUserController _userManager 只允许ApplicationProductController 内的[Authorize] 请求。每次我尝试将新产品注册为授权用户时，都会收到此错误：

System.InvalidOperationException: Unable to resolve service for type 'MyAPI.Controllers.ApplicationUserController' while attempting to activate 'MyAPI.Controllers.ApplicationProductController'. at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.GetService(IServiceProvider sp, Type type, Type requiredBy, Boolean isDefaultParameterRequired) at lambda_method(Closure , IServiceProvider , Object[] ) at Microsoft.AspNetCore.Mvc.Controllers.ControllerActivatorProvider.<>c__DisplayClass4_0.<CreateActivator>b__0(ControllerContext controllerContext) at Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider.<>c__DisplayClass5_0.<CreateControllerFactory>g__CreateController|0(ControllerContext controllerContext) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync() --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_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 where exception was thrown --- at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at AspNetCoreRateLimit.RateLimitMiddleware 1.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

Answer 1

确保您的Controller 类上方有[Authorize] 属性，以使用户有权访问控制器和方法，否则将他们重定向到登录页面。

我认为您正在尝试 inject 另一个控制器 (ApplicationProductController) 中的控制器 (ApplicationUserController)。错了，把构造函数的参数去掉。

您不必将UserManager 注入控制器以确保用户有权访问控制器。

引发此错误是因为您试图将一些未在Dependency Injection 中注册的东西注入您的控制器。 请检查ApplicationUserController 的构造函数，并确保所有参数都在DI 中注册到项目根目录下的Startup.cs 文件中。

通过检查ApplicationUserController 构造函数和ApplicationProductController 构造函数之间的差异，您可以更轻松地找到错误原因。

希望对你有所帮助。