Asp.net WebAPI Ioc

网上关于webapi Ioc 的东西很多，如http://efmvc.codeplex.com/SourceControl/latest#MyFinance.Web/Global.asax.cs 这是用微软IUnityContainer。还有：

ASP.NET Web API和依赖注入

但是网上关于Autofac 确是很少， 我第一次接触也是单元测试的时候 ASP.NET Web API Unit Testing

这里就简单贴点code吧：

public class Startup
{
public void Configuration(Owin.IAppBuilder appBuilder)
{
var config = new HttpConfiguration();
config.MessageHandlers.Add(new HeaderAppenderHandler());
config.MessageHandlers.Add(new EndRequestHandler());
config.Filters.Add(new ArticlesReversedFilter());
config.Services.Replace(typeof(IAssembliesResolver), new CustomAssembliesResolver());

config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.MapHttpAttributeRoutes();

// Autofac configuration
var builder = new ContainerBuilder();
builder.RegisterApiControllers(typeof(ArticlesController).Assembly);
//builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly())
//      .Where(t =>!t.IsAbstract && typeof(ApiController).IsAssignableFrom(t));
// Unit of Work
var _unitOfWork = new Mock<IUnitOfWork>();
builder.RegisterInstance(_unitOfWork.Object).As<IUnitOfWork>();

//Repositories
var _articlesRepository = new Mock<IArticleRepository>();
_articlesRepository.Setup(x => x.GetAll()).Returns(
BloggerInitializer.GetAllArticles()
);
builder.RegisterInstance(_articlesRepository.Object).As<IArticleRepository>();

var _blogsRepository = new Mock<IBlogRepository>();
_blogsRepository.Setup(x => x.GetAll()).Returns(
BloggerInitializer.GetBlogs
);
builder.RegisterInstance(_blogsRepository.Object).As<IBlogRepository>();

// Services
builder.RegisterAssemblyTypes(typeof(ArticleService).Assembly)
.Where(t => t.Name.EndsWith("Service"))
.AsImplementedInterfaces().InstancePerRequest();

builder.RegisterInstance(new ArticleService(_articlesRepository.Object, _unitOfWork.Object));
builder.RegisterInstance(new BlogService(_blogsRepository.Object, _unitOfWork.Object));

IContainer container = builder.Build();
config.DependencyResolver = new AutofacWebApiDependencyResolver(container);

appBuilder.UseWebApi(config);
}
}

我这里是单元测试， 所以安装包如下：

<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="EntityFramework" version="6.1.3" targetFramework="net45" />
<package id="Autofac" version="3.5.0" targetFramework="net45" />
<package id="Autofac.WebApi2" version="3.4.0" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.Owin" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.AspNet.WebApi.SelfHost" version="5.2.3" targetFramework="net45" />
<package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
<package id="Microsoft.Owin.Host.HttpListener" version="3.0.1" targetFramework="net46" />
<package id="Microsoft.Owin.Hosting" version="3.0.1" targetFramework="net46" />
<package id="Owin" version="1.0" targetFramework="net45" />
<package id="Moq" version="4.2.1510.2205" targetFramework="net45" />
<package id="Newtonsoft.Json" version="6.0.4" targetFramework="net45" />
<package id="NUnit" version="3.2.0" targetFramework="net45" />
<package id="NUnitTestAdapter" version="2.0.0" targetFramework="net45" />

</packages>

测试的时候建议使用 TestDriven.NET