Question

我已经谷歌搜索了一段时间才发现我的问题。我已经在stackoverlow中读了一个关于dbcontext和autofac的话题，但是我会意识到我的问题是不一样的。

我有一个带有EF6 codeFirst的 Web API ，其中autofac为IOC。我的问题是在记录器中我有一些这种类型的例外：

“由于DbContext已被处理，因此无法完成操作。”

大多数情况下使用unitofWork

来确定自定义ActionFilterAttribute

我有单位工作的不同实现，因为我有不同的数据库。

    .....
   // register dependencies
        builder.Register<DotNetCache>(u => new DotNetCache())
            .As<ICache>()
            .InstancePerRequest();

        builder.Register<UnitOfWork>(u => new UnitOfWork())
            .As<IUnitOfWork>()
            .InstancePerRequest();

        builder.Register<AdoUnitOfWork>(u => new AdoUnitOfWork())
            .InstancePerRequest();

        builder.Register<PrefAdoUnitOfWork>(u => new PrefAdoUnitOfWork())
            .InstancePerRequest();

    ......

任何想法都可能发生吗？

由于

UPDATE：在ActionFilterAttribute内部进行OnActionExecuting和OnActionExecuted

堆栈跟踪：

System.Web.Http.Controllers.ExceptionFilterResult+<ExecuteAsync>d__0 in MoveNext  
:Void MoveNext()
System.Runtime.CompilerServices.TaskAwaiter`1 in GetResult  : TResult GetResult()
System.Runtime.CompilerServices.TaskAwaiter in HandleNonSuccessAndDebuggerNotification : Void HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
System.Runtime.CompilerServices.TaskAwaiter in ThrowForNonSuccess at : Void ThrowForNonSuccess(System.Threading.Tasks.Task)
System.Web.Http.Controllers.ActionFilterResult+<ExecuteAsync>d__2 in MoveNext at : Void MoveNext()
System.Runtime.CompilerServices.TaskAwaiter`1 in GetResult at line : TResult GetResult()
System.Runtime.CompilerServices.TaskAwaiter in HandleNonSuccessAndDebuggerNotification : Void HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
System.Runtime.CompilerServices.TaskAwaiter in ThrowForNonSuccess : Void ThrowForNonSuccess(System.Threading.Tasks.Task)
System.Web.Http.Filters.ActionFilterAttribute+<ExecuteActionFilterAsyncCore>d__0 in MoveNext  : Void MoveNext()
System.Runtime.CompilerServices.TaskAwaiter in HandleNonSuccessAndDebuggerNotification :Void HandleNonSuccessAndDebuggerNotification(System.Threading.Tasks.Task)
System.Runtime.CompilerServices.TaskAwaiter in ThrowForNonSuccess  : Void ThrowForNonSuccess(System.Threading.Tasks.Task)
System.Web.Http.Filters.ActionFilterAttribute in OnActionExecutingAsync : System.Threading.Tasks.Task OnActionExecutingAsync(System.Web.Http.Controllers.HttpActionContext, System.Threading.CancellationToken)
LanguageAttribute in OnActionExecuting  : Void OnActionExecuting(System.Web.Http.Controllers.HttpActionContext)
System.Data.Entity.QueryableExtensions in Query  : System.Linq.IQueryable`1[T] Query[T](System.Linq.IQueryable`1[T])
System.Data.Entity.Infrastructure.DbQuery`1 in Query  :System.Data.Entity.Infrastructure.DbQuery`1[TResult] Query  ()
System.Data.Entity.Internal.Linq.InternalSet`1 in Query System.Data.Entity.Internal.Linq.IInternalQuery`1[TEntity] Query ()
System.Data.Entity.Internal.Linq.InternalSet`1 in CreateObjectQuery :System.Data.Entity.Core.Objects.ObjectQuery`1[TEntity] CreateObjectQuery(Boolean, System.Nullable`1[System.Boolean], System.Data.Entity.Infrastructure.IDbExecutionStrategy)
System.Data.Entity.Internal.LazyInternalContext in get_ObjectContext :System.Data.Entity.Core.Objects.ObjectContext get_ObjectContext()
System.Data.Entity.Internal.LazyInternalContext in InitializeContext : Void InitializeContext()

DbContext已经是Disposed AutoFac

0 个答案: