Question

假设我的几个控制器构造函数采用接口 - IPetInterface IPetInterface有3个具体实现。

如何配置StructureMap以根据需要的控制器提供其中一个具体实现。

粗略的例子......

class DogStuff: IPetInterface{}

class CatStuff: IPetInterface{}

class GiraffeStuff: IPetInterface{}

class DogController : Controller
{
    DogController(IPetInterface petStuff)

    // some other stuff that is very unique to dogs
}

class CatController : Controller
{
    CatController(IPetInterface petStuff)

    // some other stuff that is very unquie to cats
}

Answer 1

使用问题中提供的类和接口，此注册将执行：

For<DogController>().Use<DogController>()
  .Ctor<IPetInterface>("petStuff").Is<DogStuff>();
For<CatController>().Use<CatController>()
  .Ctor<IPetInterface>("petStuff").Is<CatStuff>();
For<GiraffeController>().Use<GiraffeController>()
  .Ctor<IPetInterface>("petStuff").Is<GiraffeStuff>();

如果使用相同的模式增加超过3个注册，我会考虑使用基于约定的注册，而不是基于命名自动为每个控制器注册相应的“东西”。这可以实现using an IRegistrationConvention。

Answer 2

试试这个：

class Stuff<T> : IPetInterface<T> where T : IPet { ... }

interface IPetInterface<T> where T : IPet { ... }

abstract class PetController<T> : Controller where T : IPet
{
    protected PetController<T>(IPetInterface<T> stuff)
    { ... }
}

class CatController : PetController<Cat>
{
    public CatController(IPetInterface<Cat> stuff) : base(stuff) {}

    ...
}

class DogController : PetController<Dog> { ... }

MVC3＆amp; StructureMap，基于控制器注入具体类

2 个答案: