Autofac：批量注册开放类型

本文介绍了Autofac：批量注册开放类型的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我得到了具有许多实现 IHandler< TCommand> 的具体类型的程序集，例如：

I got an assembly with many concrete types that implement IHandler<TCommand>, such as the following:

public class MoveCustomerHandler : IHandler<MoveCustomerCommand> { void IHandler<MoveCustomerCommand>.Handle(MoveCustomerCommand c) { // some business logic for moving a customer. } }

当前，我正在将它们逐个注册为

Currently, I'm registering them one by one as follows:

builder.RegisterType<MoveCustomerHandler>() .As<IHandler<MoveCustomerCommand>>(); builder.RegisterType<ProcessOrderHandler>() .As<IHandler<ProcessOrderCommand>>(); builder.RegisterType<SomeOtherFancyHandler>() .As<IHandler<SomeOtherFancyCommand>>(); // Many handler registrations here...

命令处理程序是使用构造函数注入来注入，如下所示：

The command handlers are injected using constructor injection, as can be seen below:

public class OrderController { private readonly IHandler<ProcessOrderCommand> handler; public OrderController(IHandler<ProcessOrderCommand> handler) { this.handler = handler; } }

是否可以批量注册我的所有处理程序

Is there a way to batch register all my handlers in an easy way using Autofac?

推荐答案

与Jim的答案类似，但要利用 AsClosedTypesOf ：

In a similar style to Jim's answer but taking advantage of AsClosedTypesOf:

Assembly[] assemblies = GetYourAssemblies(); builder.RegisterAssemblyTypes(assemblies) .AsClosedTypesOf(typeof(IHandler<>));