IOC框架---StructureMap

一 簡單介紹

StructureMap is the oldest, continuously used IoC/DI container for .Net dating back to its first public release and production usage all the way back in June 2004 on .Net 1.1. The current 4.* release represents 12+ years of lessons learned in the StructureMap and greater .Net community -- while also wiping away a great deal of legacy design decisions that no longer make sense today.
StructureMap是.Net最早的，連續使用的IoC / DI容器，可以追溯到2004年6月在.Net 1.1上的第一次公開發布和生產使用。 當前的4. *版本代表了在StructureMap和更大的.Net社區中學到的12年多的經驗教訓 - 同時也消除了大量遺留的設計決策，這些決策今天已經不再有意義了。

StructureMap是一個IOC框架,至於什么是IOC不做過多解釋,網上有很多資料,這里主要是演示下簡單的用法

簡單用法

1. 新建控制台項目,項目結構如下
   

2. 新建Interfacec層,Service層和Repository層,分別表示接口層,業務層和數據倉儲層,Service有兩個,主要演示了Setter和Ctor注冊兩種情況

   Interface層

   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;
   using System.Threading.Tasks;
   
   namespace Learn_StructureMap.Interface
   {
       public interface IOrderRepository
       {
           void GetOrdersByUserId(string userId);
       }
   }
   
   
   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;
   using System.Threading.Tasks;
   
   namespace Learn_StructureMap.Interface
   {
       public interface IOrderService
       {
           void GetOrdersByUserId(string userId);
       }
   }
   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;
   using System.Threading.Tasks;
   
   namespace Learn_StructureMap.Interface
   {
       public interface IUserRepository
       {
           void GetUserById(int id);
       }
   }
   
   using System;
   using System.Collections.Generic;
   using System.Linq;
   using System.Text;
   using System.Threading.Tasks;
   
   namespace Learn_StructureMap.Interface
   {
       public interface IUserService
       {
           void GetUserById(int id);
       }
   }
   
   

   Service層

   
   using Learn_StructureMap.Interface;
   using System;
   
   namespace Learn_StructureMap.Service
   { 
       public class UserService : IUserService
       { 
           private IUserRepository userRepository;
           
           public UserService(IUserRepository userRepository)
           { 
               this.userRepository = userRepository;
           }
   
           public void GetUserById(int id)
           {
               Console.WriteLine("UserService 執行");
               this.userRepository.GetUserById(10);
           }
       }
   }
   
   
   using Learn_StructureMap.Interface;
   using StructureMap.Attributes;
   using System;
   
   namespace Learn_StructureMap.Service
   {
       public class OrderService : IOrderService
       {
           [SetterProperty]
           public IOrderRepository orderRepository { get; set; }
   
           public void GetOrdersByUserId(string userId)
           {
               Console.WriteLine("OrderService 執行");
               this.orderRepository.GetOrdersByUserId(userId);
           }
       }
   }
   
   

   Repository層

   using System;
   using Learn_StructureMap.Interface;
   
   namespace Learn_StructureMap.Init
   {
       public class OrderRepository : IOrderRepository
       {
           public void GetOrdersByUserId(string userId)
           {
               Console.WriteLine("OrderRepository 執行");
           }
       }
   }
   
   using Learn_StructureMap.Interface;
   using System;
   
   namespace Learn_StructureMap.DataAccess
   {
       public class UserRepository : IUserRepository
       {
           public void GetUserById(int id)
           {
               Console.WriteLine("UserRepository 執行");
           }
       }
   }
   
   

   接下來最重要的,初始化IOC容器,將需要的服務注入到該容器之后,在需要的地方就可以直接拿來用了

   using StructureMap;
   
   namespace Learn_StructureMap.Init
   {
       public class ContainerFactory
       {
           public static Container container = null;
   
           static ContainerFactory()
           {
               container = new Container();
               container.Configure(it =>
               {
                   it.AddRegistry<IOCRegister>();
               });
           }
       }
   }
   
   using Learn_StructureMap.DataAccess;
   using Learn_StructureMap.Interface;
   using Learn_StructureMap.Service;
   using StructureMap;
   
   namespace Learn_StructureMap.Init
   {
       public class IOCRegister : Registry
       {
           public IOCRegister()
           {
               //Service
               //setter inject
               For<IOrderService>().Singleton().Use<OrderService>().Setter<IOrderRepository>().Is<OrderRepository>();
               //ctor inject
               For<IUserService>().ContainerScoped().Use<UserService>().Ctor<IUserRepository>().Is<UserRepository>();
   
               //Repository
               For<IUserRepository>().Singleton().Use<UserRepository>();
               For<IOrderRepository>().Singleton().Use<OrderRepository>();
   
           }
   
       }
   }
   
   

   UI層,主要演示如何獲取服務,並調用服務方法

   using Learn_StructureMap.Init;
   using Learn_StructureMap.Interface;
   using System;
   
   namespace Learn_StructureMap
   {
       class Program
       {
           static void Main(string[] args)
           {
               var container = ContainerFactory.container;
   
               IUserService userService = container.GetInstance<IUserService>();
               userService.GetUserById(10);
               IOrderService orderService = container.GetInstance<IOrderService>();
               orderService.GetOrdersByUserId("u1"); 
               Console.ReadKey();
           }
       }
   }
   
   

3. 運行結果如下: