.net core批量注入实现类

1.获取实现类程序集方法

  public class RuntimeHelper
     {
         //通过程序集的名称加载程序集
         public static Assembly GetAssemblyByName(string assemblyName)
         {
             return AssemblyLoadContext.Default.LoadFromAssemblyName(new AssemblyName(assemblyName));
         }
     }

2.遍历实现类,批量注入映射关系

  public static void AddAssembly(this IServiceCollection service, string assemblyName
             ,ServiceLifetime serviceLifetime = ServiceLifetime.Scoped)
         {
             var assembly = RuntimeHelper.GetAssemblyByName(assemblyName);

             var types = assembly.GetTypes();
             var list = types.Where(u => u.IsClass && !u.IsAbstract && !u.IsGenericType).ToList();

             foreach (var type in list)
             {
                 var interfaceList = type.GetInterfaces();
                 if (interfaceList.Any())
                 {
                     var inter = interfaceList.First();

                     switch (serviceLifetime)
                     {
                         case ServiceLifetime.Transient:
                             service.AddTransient(inter, type);
                             break;
                         case ServiceLifetime.Scoped:
                             service.AddScoped(inter, type);
                             break;
                         case ServiceLifetime.Singleton:
                             service.AddSingleton(inter, type);
                             break;

                     }
                     service.AddScoped(inter, type);
                 }
             }
         }
     }

3.在Startup类中使用

4.这样就实现了类似于autofac的功能,其实.net core自己的依赖注入容器挺好的