Unity 依賴注入之一

在項目中引入Unity，建立一個接口IWork跟一個繼承IWork接口的Work類

    public interface IMyWork
    {
        void Work();
    }
    public class MyWork : IMyWork
    {
        public void Work()
        {
            Console.WriteLine("Hello World！");
        }
    }

unity的簡單使用分三步

        static void Main(string[] args)
        {
            UnityContainer container = new UnityContainer();//創建IOC容器
            container.RegisterType<IMyWork, MyWork>();//注冊（Register）
            var myWork = container.Resolve<IMyWork>();//獲取（Resolve）
            myWork.Work();//hello world
            Console.ReadKey();
        }

參考Unity ASP.NET MVC 將UnityContaniner封裝 類名也叫做UnityConfig（參考Unity4.0的使用），進行職責分離，分離注冊與獲取，同時進行單例與延遲加載（在后面的文章還會提到）

  public class UnityConfig : IInstance<UnityConfig>, IServiceProvider
    {
        #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

        /// <summary>Registers the type mappings with the Unity container.</summary>
        /// <param name="container">The unity container to configure.</param>
        /// <remarks>There is no need to register concrete types such as controllers or API controllers (unless you want to 
        /// change the defaults), as Unity allows resolving a concrete type even if it was not previously registered.</remarks>
        public static void RegisterTypes(IUnityContainer container)
        {
            // NOTE: To load from web.config uncomment the line below. Make sure to add a Microsoft.Practices.Unity.Configuration to the using statements.
            //container.LoadConfiguration();

            // TODO: Register your types here
            // container.RegisterType<IProductRepository, ProductRepository>();
            container.RegisterType<IMyWork, MyWork>();
        }

        public object GetService(Type serviceType)
        {
            return GetConfiguredContainer().Resolve(serviceType);
        }

        public T GetService<T>()
        {
            return (T)GetService(typeof(T));
        }
    }

    public class IInstance<T> where T : new()
    {
        private static readonly T instance = new T();

        public static T Instance
        {
            get { return instance; }
        }
    }

最后的調用

    class Program
    {
        static void Main(string[] args)
        {
            var myWork = UnityConfig.Instance.GetService<IMyWork>();//獲取（Resolve）

            myWork.Work();//hello world

            Console.ReadKey();
        }
    }

 

以上是本人比較初級的處理，主要用於本人學習Unity的一個記錄