一、创建一个专门用于依赖注入的接口(IAutoInject), 所有的服务接口皆继承于此接口
namespace DDD.Domain { public interface IAutoInject { } }
二、添加服务接口,需要继承IAutoInject
namespace DDD.Domain.Product.Inter { public interface IProductTypeService : IAutoInject { int Add(ProductType entity); } }
三、添加服务实现类,继承服务接口IProductTypeService
namespace DDD.Domain.Product.Impl { public class ProductTypeService: DBBase , IProductTypeService { public int Add(ProductType entity) { return db.Insertable(entity).ExecuteCommand(); } } }
四、添加依赖注入类
namespace CoreTest { public class AutoFacIoc { public static IContainer Injection(IServiceCollection services) { var builder = new ContainerBuilder(); //InstancePerLifetimeScope:同一个Lifetime生成的对象是同一个实例 //SingleInstance:单例模式,每次调用,都会使用同一个实例化的对象;每次都用同一个对象; //InstancePerDependency:默认模式,每次调用,都会重新实例化对象;每次请求都创建一个新的对象; //获取IAutoInject的类型 var baseTypeDomain = typeof(DDD.Domain.IAutoInject); //获取所有需要依赖注入的程序集 //DDD.Domain是服务所在程序集命名空间 Assembly assembliesDomain = Assembly.Load("DDD.Domain"); //自动注册接口 builder.RegisterAssemblyTypes(assembliesDomain) .Where(b => b.GetInterfaces().Any(c => c == baseTypeDomain && b != baseTypeDomain)) .AsImplementedInterfaces() .SingleInstance(); //见上方说明 builder.Populate(services); return builder.Build(); } } }
五、再Startup.cs中调用
说明: 需要修改ConfigureServices方法的返回值为 IServiceProvider ; 添加ApplicationContainer 属性
public IContainer ApplicationContainer { get; private set; } public IServiceProvider ConfigureServices(IServiceCollection services) { services.AddMvc(); this.ApplicationContainer = AutoFacIoc.Injection(services); return new AutofacServiceProvider(this.ApplicationContainer); }
六、根据构造函数进行注入
namespace CoreTest.Controllers { public class ProductTypeController : Controller { IProductTypeService productTypeService; public ProductTypeController(IProductTypeService _productTypeService) { this.productTypeService = _productTypeService; } public IActionResult Add() { ProductType entity = new ProductType() { CreateBy = "", CreateTime = DateTime.Now }; int re = productTypeService.Add(entity); re += productApp.AddProductType(entity); return Json(re); } } }
本文转自:
https://blog.csdn.net/qq_26900081/article/details/82984010
原文地址:https://www.cnblogs.com/xiaoguli/p/11259466.html
时间: 2024-11-05 20:27:17