LoadConfigurationServiceCollectionExtensions.cs

    public static class LoadConfigurationServiceCollectionExtensions
    {
        public static IServiceCollection LoadConfiguration(this IServiceCollection services, IConfigurationSection containerSection)
        {
            OptionsConfigurationServiceCollectionExtensions
            .Configure<RegisterSetting>(services, containerSection)                
            .BuildServiceProvider().GetService<IOptions<RegisterSetting>>().Value
                .Registers.ForEach(reg =>
                {
                    var regassembly = string.IsNullOrWhiteSpace(reg.TypeAssembly)
                        ? Assembly.GetEntryAssembly() : Assembly.Load(new AssemblyName(reg.TypeAssembly));
                    var registType = regassembly.GetType(reg.Type);
                    if (registType == null) return;

                    var typeassembly = string.IsNullOrWhiteSpace(reg.MapToAssembly)
                        ? Assembly.GetEntryAssembly() : Assembly.Load(new AssemblyName(reg.MapToAssembly));
                    var maptoType = typeassembly.GetType(reg.MapTo);
                    if (maptoType == null) return;

                    services.Add(new ServiceDescriptor(registType, maptoType, reg.Lifetime));
                });
            return services;
        }
        private class RegisterSetting
        {
            public class Register
            {
                public string Type { get; set; }
                public string TypeAssembly { get; set; }
                public string MapTo { get; set; }
                public string MapToAssembly { get; set; }
                public ServiceLifetime Lifetime { get; set; }
            }
            public List<Register> Registers { get; set; }

        }
    }