带有 MVC 和 WebAPI 的简单注入器

Question

我有一个包含 WebAPI 和 MVC 控制器的 C# 项目，我想使用 Simple Injector。 https://simpleinjector.readthedocs.io/en/latest/mvcintegration.html 的 Simple Injector 文档将 MVC 的 Application_Start 方法显示为

protected void Application_Start(object sender, EventArgs e) {
    // Create the container as usual.
    var container = new Container();
    container.Options.DefaultScopedLifestyle = new WebRequestLifestyle();

    // Register your types, for instance:
    container.Register<IUserRepository, SqlUserRepository>(Lifestyle.Scoped);

    // This is an extension method from the integration package.
    container.RegisterMvcControllers(Assembly.GetExecutingAssembly());

    container.Verify();

    DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(container));
}

但https://simpleinjector.readthedocs.io/en/latest/webapiintegration.html 显示以下 WebAPI

protected void Application_Start() {
    // Create the container as usual.
    var container = new Container();
    container.Options.DefaultScopedLifestyle = new WebApiRequestLifestyle();

    // Register your types, for instance using the scoped lifestyle:
    container.Register<IUserRepository, SqlUserRepository>(Lifestyle.Scoped);

    // This is an extension method from the integration package.
    container.RegisterWebApiControllers(GlobalConfiguration.Configuration);

    container.Verify();

    GlobalConfiguration.Configuration.DependencyResolver =
    new SimpleInjectorWebApiDependencyResolver(container);

    // Here your usual Web API configuration stuff.
}

请问如何编写 Application_Start 代码，以便在 WebAPI 和 MVC 控制器中使用 Simple Injector？

Answer 1

你可以像这样把代码放在一起：

protected void Application_Start(object sender, EventArgs e) {
    var container = new Container();
    container.Options.DefaultScopedLifestyle = new WebRequestLifestyle();

    container.Register<IUserRepository, SqlUserRepository>(Lifestyle.Scoped);

    // User MVC integration
    container.RegisterMvcControllers(Assembly.GetExecutingAssembly());

    // Use Web API integration
    container.RegisterWebApiControllers(GlobalConfiguration.Configuration);

    container.Verify();

    // Plug in Simple Injector into MVC
    DependencyResolver.SetResolver(new SimpleInjectorDependencyResolver(container));

    // Plug in Simple Injector into Web API
    GlobalConfiguration.Configuration.DependencyResolver =
        new SimpleInjectorWebApiDependencyResolver(container);
}