StructureMap 异常 202 未定义默认实例（版本 2.61）

Question

容器的初始化：

public override void Initialize()
        {

            ObjectFactory.Initialize(x =>
                                         {
                                             x.Scan(s =>
                                                        {
                                                            s.TheCallingAssembly();
                                                            s.AssemblyContainingType<IRegistar>();
                                                            s.WithDefaultConventions();

                                                        });

                                         });

        }

Global.asax.xc

  var dependencyContainer = new DependencyContainer();
            dependencyContainer.Initialize();

            ControllerBuilder.Current.SetControllerFactory(new DependencyControllerFactory());

Get 实例：

public class DependencyControllerFactory : DefaultControllerFactory
{
protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType)
        {
            if (controllerType == null)
            {
                return base.GetControllerInstance(requestContext, controllerType);
            }

            try
            {
                return ObjectFactory.GetInstance(controllerType) as Controller;
            }
            catch (StructureMapException exception)
            {
                Debug.WriteLine(ObjectFactory.WhatDoIHave());
                throw;
            }
        }
    }

控制者

私有IBabyRepository _babyRepository; {

  public BabyController(IBabyRepository babyRepository)
  {
      _babyReposoitory = babyRepository;
  }

类尝试 DI/Ioc

public class BabyRepository : IBabyRepository, IRepository<Baby>, IRegistar
{
    Just a Default constructor here();
    code...
}

错误：

结构图异常代码：202 没有为 PluginFamily Domain.Repository.IBabyRepository 定义默认实例，Domain，Version=1.0.0.0，Culture=neutral，PublicKeyToken=null

我

我做错了什么？

Answer 1

您不会告诉 StructureMap 如何创建 BabyRepository。

我认为你的扫描应该是这样的：

        Scan(y =>
        {
            y.AssemblyContainingType<IRegistar>();
            y.Assembly(Assembly.GetExecutingAssembly().FullName);
            y.With(new RepositoryScanner());
        })

然后需要编写自定义的 RepositoryScanner：

public class RepositoryScanner : IRegistrationConvention
{
    public void Process(Type type, Registry registry)
    {
        if (type.BaseType == null) return;

        if (type.GetInterface(typeof(IRepository).Name) != null)
        {
            var name = type.Name;

            registry
               .For<IRepository>()
               .AddInstances(y => y.Instance(new ConfiguredInstance(type).Named(name)));
        }
    }
}