我正在尝试整合一个基于SOA的项目，并使用Gereric Repository和UnitOfWork以及Unity。
我的问题是，当控制器尝试初始化时，我收到以下错误：
无法构造String类型。您必须配置容器以提供此值。
我有以下Unity配置：
public static class UnityConfig
{
#region Unity Container
private static Lazy<IUnityContainer> container = new Lazy<IUnityContainer>(() =>
{
var container = new UnityContainer();
RegisterTypes(container);
return container;
});
/// <summary>
/// Gets the configured Unity container.
/// </summary>
public static IUnityContainer GetConfiguredContainer()
{
return container.Value;
}
#endregion
public static void RegisterTypes(IUnityContainer container)
{
// register all your components with the container here
// it is NOT necessary to register your controllers
// e.g. container.RegisterType<ITestService, TestService>();
container.RegisterType<IDataContextAsync, MyDbContext>(new PerRequestLifetimeManager())
.RegisterType<IRepositoryProvider, RepositoryProvider>(
new PerRequestLifetimeManager(),
new InjectionConstructor(new object[] { new RepositoryFactories() })
)
.RegisterType<IUnitOfWorkAsync, UnitOfWork>(new PerRequestLifetimeManager())
.RegisterType<IUnitOfWork, UnitOfWork>(new PerRequestLifetimeManager())
.RegisterType<IRepositoryAsync<ApplicationSetting>, Repository<ApplicationSetting>>()
.RegisterType<IApplicationSettingService, ApplicationSettingService>();
container.RegisterType<IRepositoryProvider, RepositoryProvider>(new InjectionConstructor(container));
}
}
以下Activator
using System.Linq;
using System.Web.Mvc;
using Microsoft.Practices.Unity.Mvc;
using XNETProductQuote.Web;
[assembly: WebActivatorEx.PreApplicationStartMethod(typeof(UnityWebActivator), "Start")]
[assembly: WebActivatorEx.ApplicationShutdownMethod(typeof(UnityWebActivator), "Shutdown")]
namespace XNETProductQuote.Web
{
/// <summary>Provides the bootstrapping for integrating Unity with ASP.NET MVC.</summary>
public static class UnityWebActivator
{
/// <summary>Integrates Unity when the application starts.</summary>
public static void Start()
{
var container = UnityConfig.GetConfiguredContainer();
FilterProviders.Providers.Remove(FilterProviders.Providers.OfType<FilterAttributeFilterProvider>().First());
FilterProviders.Providers.Add(new UnityFilterAttributeFilterProvider(container));
DependencyResolver.SetResolver(new UnityDependencyResolver(container));
// TODO: Uncomment if you want to use PerRequestLifetimeManager
Microsoft.Web.Infrastructure.DynamicModuleHelper.DynamicModuleUtility.RegisterModule(typeof(UnityPerRequestHttpModule));
}
/// <summary>Disposes the Unity container when the application is shut down.</summary>
public static void Shutdown()
{
var container = UnityConfig.GetConfiguredContainer();
container.Dispose();
}
}
}
我想加载的控制器是以下
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using XNETProductQuote.Entities ;
using XNETProductQuote.Entities.Models;
using XNETProductQuote.Service;
namespace XNETProductQuote.Controllers
{
public class ApplicationSettingController : Controller
{
private IApplicationSettingService service;
public ApplicationSettingController(IApplicationSettingService svr)
{
service = svr;
}
//
// GET: /ApplicationSetting/
public ActionResult Index()
{
var applicationSettings = service.GetAll();
return View(applicationSettings);
}
}
据我所知，Unityconfig注册了应该用于初始化控制器的IApplicationSettingService类型。
我错过了其他什么吗？更新：
我得到的错误是
[InvalidOperationException: The type String cannot be constructed. You must configure the container to supply this value.]
Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.GuardTypeIsNonPrimitive(IBuilderContext context) +299
Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.PreBuildUp(IBuilderContext context) +131
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +274
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlanCreatorPolicy.CreatePlan(IBuilderContext context, NamedTypeBuildKey buildKey) +162
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +245
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +274
Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) +167
Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) +101
lambda_method(Closure , IBuilderContext ) +222
Microsoft.Practices.ObjectBuilder2.<>c__DisplayClass1.<GetBuildMethod>b__0(IBuilderContext context) +71
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +42
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +333
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +274
Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) +167
Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) +101
lambda_method(Closure , IBuilderContext ) +232
Microsoft.Practices.ObjectBuilder2.<>c__DisplayClass1.<GetBuildMethod>b__0(IBuilderContext context) +71
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +42
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +333
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +274
Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) +167
Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) +101
lambda_method(Closure , IBuilderContext ) +222
Microsoft.Practices.ObjectBuilder2.<>c__DisplayClass1.<GetBuildMethod>b__0(IBuilderContext context) +71
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +42
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +333
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +274
Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) +167
Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) +101
lambda_method(Closure , IBuilderContext ) +224
Microsoft.Practices.ObjectBuilder2.<>c__DisplayClass1.<GetBuildMethod>b__0(IBuilderContext context) +71
Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +42
Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +333
Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +274
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +384
[ResolutionFailedException: Resolution of the dependency failed, type = "XNETProductQuote.Controllers.ApplicationSettingController", name = "(none)".
Exception occurred while: while resolving.
Exception is: InvalidOperationException - The type String cannot be constructed. You must configure the container to supply this value.
-----------------------------------------------
At the time of the exception, the container was:
Resolving XNETProductQuote.Controllers.ApplicationSettingController,(none)
Resolving parameter "svr" of constructor XNETProductQuote.Controllers.ApplicationSettingController(XNETProductQuote.Service.IApplicationSettingService svr)
Resolving XNETProductQuote.Service.ApplicationSettingService,(none) (mapped from XNETProductQuote.Service.IApplicationSettingService, (none))
Resolving parameter "repository" of constructor XNETProductQuote.Service.ApplicationSettingService(Repository.Pattern.Repositories.IRepositoryAsync`1[[XNETProductQuote.Entities.Models.ApplicationSetting, XNETProductQuote.Entities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] repository)
Resolving Repository.Pattern.Ef6.Repository`1[XNETProductQuote.Entities.Models.ApplicationSetting],(none) (mapped from Repository.Pattern.Repositories.IRepositoryAsync`1[XNETProductQuote.Entities.Models.ApplicationSetting], (none))
Resolving parameter "context" of constructor Repository.Pattern.Ef6.Repository`1[[XNETProductQuote.Entities.Models.ApplicationSetting, XNETProductQuote.Entities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]](Repository.Pattern.DataContext.IDataContextAsync context, Repository.Pattern.UnitOfWork.IUnitOfWorkAsync unitOfWork)
Resolving XNETProductQuote.Entities.MyDbContext,(none) (mapped from Repository.Pattern.DataContext.IDataContextAsync, (none))
Resolving parameter "connectionString" of constructor XNETProductQuote.Entities.MyDbContext(System.String connectionString)
Resolving System.String,(none)
]
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +447
Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, String name, IEnumerable`1 resolverOverrides) +50
Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name, ResolverOverride[] resolverOverrides) +48
Microsoft.Practices.Unity.UnityContainerExtensions.Resolve(IUnityContainer container, Type t, ResolverOverride[] overrides) +61
Microsoft.Practices.Unity.Mvc.UnityDependencyResolver.GetService(Type serviceType) +142
System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +87
[InvalidOperationException: An error occurred when trying to create a controller of type 'XNETProductQuote.Controllers.ApplicationSettingController'. Make sure that the controller has a parameterless public constructor.]
System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext, Type controllerType) +247
System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext, Type controllerType) +438
System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +226
System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext, IController& controller, IControllerFactory& factory) +326
System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext, AsyncCallback callback, Object state) +157
System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext, AsyncCallback callback, Object state) +88
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context, AsyncCallback cb, Object extraData) +50
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +301
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
My Repository类如下
public static class ApplicationSettingRepository
{
public static ApplicationSetting GetByID(this IRepository<ApplicationSetting> repository, int applicationSettingId)
{
return repository.Find(applicationSettingId);
}
public static IEnumerable<ApplicationSetting> GetAll(this IRepository<ApplicationSetting> repository)
{
return repository.Queryable().AsEnumerable();
}
}