.NET Core自动注册服务

/// <summary>  
        /// 自动注册服务——获取程序集中的实现类对应的多个接口
        /// </summary>
        /// <param name="services">服务集合</param>  
        /// <param name="assemblyName">程序集名称</param>
        public void AddAssembly(IServiceCollection services, string assemblyName)
        {
            if (!String.IsNullOrEmpty(assemblyName))
            {
                Assembly assembly = Assembly.Load(assemblyName);
                List<Type> ts = assembly.GetTypes().Where(u => u.IsClass && !u.IsAbstract && !u.IsGenericType).ToList();
                foreach (var item in ts.Where(s => !s.IsInterface))
                {
                    var interfaceType = item.GetInterfaces();
                    if (interfaceType.Length == 1)
                    {
                        services.AddTransient(interfaceType[0], item);
                    }
                    if (interfaceType.Length > 1)
                    {
                        services.AddTransient(interfaceType[1], item);
                    }
                }
            }
        }

　　在ConfigureServices 调用 AddAssembly(services, "RecCore.Services");