Unity 依赖注入解决返回 System.NullReferenceException

Question

我正在尝试 "resolve" 使用 Unity 依赖注入 class，但 Unity 总是 returns 我 System.NullReferenceException

private IUnityContainer _unityContainer { get; set; }
public void myMethod()
{
    _unityContainer = UnityContainer.UnityContainerConfig.Initialize();
    IMyclass ObjMyClass = _unityContainer.Resolve<IMyclass >();
    ObjMyClass .Init();
}

我的容器：

public class UnityContainerConfig
{
    public static IUnityContainer _unityContainer = null;

    public static IUnityContainer Initialize()
    {
        if (_unityContainer == null)
        {
            _unityContainer = new Microsoft.Practices.Unity.UnityContainer()
            .RegisterType<IRepository<Table1>, Table1Repository>(new HttpContextLifetimeManager<IRepository<Table1>>())
            .RegisterType<IRepository<Table2>, Table2Repository>(new HttpContextLifetimeManager<IRepository<Table2>>())
            .RegisterType<IRepository<Table3>, Table3Repository>(new HttpContextLifetimeManager<IRepository<Table3>>())
            .RegisterType<IRepository<Table4>, Table4Repository>(new HttpContextLifetimeManager<IRepository<Table4>>())
            .RegisterType<IMyclass, MyClass>(new HttpContextLifetimeManager<IMyclass>());
        }
    }
        return unityContainer;
}

"my class" 构造函数中有 4 个参数接收“4 个表作为存储库”

Answer 1

问题已解决

我不得不重新安装 unity (nuget)，安装 UnityOfWork 并注册 "UnityOfWork class"

Unity 依赖注入解决返回 System.NullReferenceException

Unity Dependency Injection Resolve returning System.NullReferenceException

c#

asp.net

dependencies

dependency-injection

unity-container