ASP.NET 样板管理服务中的 ObjectDisposedException

Question

我决定将逻辑从RoleAppService 分离到RoleService，因为我需要在其他应用服务中使用角色方法。通过分离逻辑，我可以避免将端点注入其他端点（例如 RoleAppService 到 UserAppService）和可能的循环依赖。 API 在外部也是不可见的——这就是为什么类从 AbpServiceBase 继承，没有 ApplicationService（这使得服务在 swagger 中可见）。不幸的是，当我尝试在 RoleService 方法中使用样板管理器类（例如 RoleManager、UserManager）时，会引发以下异常：

Cannot access a disposed object.
Object name: 'RoleManagerProxy'.

带有堆栈跟踪：

   at Microsoft.AspNetCore.Identity.RoleManager`1.ThrowIfDisposed()
   at Microsoft.AspNetCore.Identity.RoleManager`1.FindByNameAsync(String roleName)
   at Castle.Proxies.Invocations.RoleManager`1_FindByNameAsync.InvokeMethodOnTarget()
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.Proxies.RoleManagerProxy.FindByNameAsync(String roleName)
   at Abp.Authorization.Roles.AbpRoleManager`2.<CheckDuplicateRoleNameAsync>d__48.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Abp.Authorization.Roles.AbpRoleManager`2.<UpdateAsync>d__42.MoveNext() in D:\Github\aspnetboilerplate\src\Abp.ZeroCore\Authorization\Roles\AbpRoleManager.cs:line 283
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at VZero.Roles.RoleService.<Create>d__6.MoveNext() in C:\Users\Marcin\source\repos\translink.vendorforum\Translink.Api\src\VZero.Application\Roles\RoleService.cs:line 42
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at VZero.Roles.RoleService.<CreateOtherDocumentUserRole>d__9.MoveNext() in C:\Users\Marcin\source\repos\translink.vendorforum\Translink.Api\src\VZero.Application\Roles\RoleService.cs:line 94
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at VZero.Roles.RoleService.<GetOtherDocumentRole>d__11.MoveNext() in C:\Users\Marcin\source\repos\translink.vendorforum\Translink.Api\src\VZero.Application\Roles\RoleService.cs:line 107
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at VZero.Roles.RoleService.<UpdateOtherDocumentUserRole>d__10.MoveNext() in C:\Users\Marcin\source\repos\translink.vendorforum\Translink.Api\src\VZero.Application\Roles\RoleService.cs:line 100
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at VZero.Users.UserAppService.<Update>d__20.MoveNext() in C:\Users\Marcin\source\repos\translink.vendorforum\Translink.Api\src\VZero.Application\Users\UserAppService.cs:line 226
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Abp.Threading.InternalAsyncHelper.<AwaitTaskWithPostActionAndFinallyAndGetResult>d__5`1.MoveNext() in D:\Github\aspnetboilerplate\src\Abp\Threading\InternalAsyncHelper.cs:line 120
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at lambda_method(Closure , Object )
   at Microsoft.AspNetCore.Mvc.Internal.ActionMethodExecutor.AwaitableObjectResultExecutor.<Execute>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeActionMethodAsync>d__12.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeNextActionFilterAsync>d__10.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Rethrow(ActionExecutedContext context)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.<InvokeInnerFilterAsync>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.<InvokeNextExceptionFilterAsync>d__24.MoveNext()

错误似乎与框架配置有关。我试图用 AppService 结束服务名称，但它根本没有帮助。服务在 Windsor Castle 框架中注册。有趣的是 - 类内部可以正常工作样板存储库，例如 RoleRepository、UserReposistory - 不幸的是 RoleManager/UserManager 不是。下面是该类的片段：

public class RoleService : AbpServiceBase, IRoleService
    {
        private readonly RoleManager _roleManager;
        private readonly IRepository<Role> _roleRepository;
        private readonly UserManager _userManager;
        private readonly IRepository<User, long> _userRepository;
        private readonly IPermissionManager _permissionManager;

        public RoleService(RoleManager roleManager, IRepository<Role> roleRepository,
            UserManager userManager, IRepository<User, long> userRepository,
            IPermissionManager permissionManager)
        {
            _roleManager = roleManager;
            _roleRepository = roleRepository;
            _userManager = userManager;
            _userRepository = userRepository;
            _permissionManager = permissionManager;
        }

        public async Task<RoleDto> Create(CreateRoleDto createRoleDto, Action<IdentityResult> checkErrorsMethod)
        {
            var role = ObjectMapper.Map<Role>(createRoleDto);
            role.SetNormalizedName();
            await _roleManager.UpdateAsync(role); // here exception is thrown

            var grantedPermissions = _permissionManager
                .GetAllPermissions()
                .Where(p => createRoleDto.Permissions.Contains(p.Name))
                .ToList();

            await _roleManager.SetGrantedPermissionsAsync(role, grantedPermissions);
            return role.MapTo<RoleDto>();
        }

如果有任何帮助，我将不胜感激。

Answer 1

如果你添加[UnitOfWork]属性，不要忘记制作方法public virtual