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接口注入与反转
抽出要工具类:
/* * Assembly: Proj.ServiceContainer * Class : ContainerImpl CLR.v4.0.30319.42000 * ───────────────────────────────────────────────────────────── * Created : yansixing 2017/3/8 10:37:59 * Copyright (c) 2017 All rights reserved. * ───────────────────────────────────────────────────────────── */ using System.Collections.Generic; namespace Proj.ServiceContainer { /// <summary> /// Class ContainerImpl.实现注入 /// </summary> /// <seealso cref="ExFresh.PSS.OrderService.ServiceContainer.IContainer" /> public class ContainerImpl : IContainer { public static Dictionary<string, object> _container { get; set; } static ContainerImpl() { _container = new Dictionary<string, object>(); } /// <summary> /// Registers the specified t class. /// </summary> /// <typeparam name="TClass">The type of the t class.</typeparam> /// <typeparam name="TInterface">The type of the t interface.</typeparam> /// <param name="tClass">The t class.</param> public void Register<TClass, TInterface>(TClass tClass) where TClass : class, TInterface { _container.Add(typeof(TInterface).FullName, tClass); } /// <summary> /// Resolves this instance. /// </summary> /// <typeparam name="TInterface">The type of the t interface.</typeparam> /// <returns>TInterface.</returns> public TInterface Resolve<TInterface>() { TInterface tInterface = default(TInterface); object obj; if (_container.TryGetValue(typeof(TInterface).FullName, out obj)) { tInterface = (TInterface)obj; } return tInterface; } /// <summary> /// Tries the resolve. /// </summary> /// <typeparam name="TInterface">The type of the t interface.</typeparam> /// <param name="tInterface">The t interface.</param> /// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns> public bool TryResolve<TInterface>(out TInterface tInterface) { object obj; bool flag = false; tInterface = default(TInterface); if (_container.TryGetValue(typeof(TInterface).FullName, out obj)) { flag = true; tInterface = (TInterface)obj; } return flag; } } }
namespace Proj.ServiceContainer { public interface IContainer { void Register<TClass, TInterface>(TClass tClass) where TClass : class, TInterface; TInterface Resolve<TInterface>(); bool TryResolve<TInterface>(out TInterface tInterface); } }
/* * Assembly: Proj.ServiceContainer * Class : ContainerFactory CLR.v4.0.30319.42000 * ───────────────────────────────────────────────────────────── * Created : yansixing 2017/3/8 10:52:04 * Copyright (c) 2017 All rights reserved. * ───────────────────────────────────────────────────────────── */ namespace Proj.ServiceContainer { public class ContainerFactory { private static IContainer _container; public static IContainer GetContainer() { if (_container == null) { _container = new ContainerImpl(); } return _container; } } }
在表现层加一个范型基类,实现接口反转:
namespace Proj.API { public class CommonApi<T> { protected TInterface Resolve<TInterface>() { return ContainerFactory.GetContainer().Resolve<TInterface>(); } protected T ServiceImpl { get; set; } public CommonApi() { ServiceImpl = ContainerFactory.GetContainer().Resolve<T>(); } private IMapper _mapper; public IMapper Mapper { get { if (null == _mapper) { _mapper = AssemblerIoc.GetMapper(); } return _mapper; } } }
在每个API继承该范型基类:
namespace Proj.API { public class OrderPrintApi:CommonApi<IOrderPrintService> }
在项目启动地方一次装载:
namespace Proj.ContainerInit { internal class Container { internal static void Configer(ContainerImpl container) { #region 订单服务 //订单打印 container.Register<OrderPrintService, IOrderPrintService>(new OrderPrintService()); #endregion #region 库存服务 #endregion } } }
//启动容器初始化 Container.Configer(new ContainerImpl());
参考: http://www.cnblogs.com/qqlin/archive/2012/10/09/2707075.html 依赖注入
接口注入与反转
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