在MVC 5异常的Web API属性路线：对象尚未初始化。确保HttpConfiguration.EnsureInitialized（） [英] Web API Attribute Routes in MVC 5 exception: The object has not yet been initialized. Ensure that HttpConfiguration.EnsureInitialized()

问题描述

在一个MVC 5使用Web API我有以下的，只使用属性的路由：

On an MVC 5 with Web API I have the following, using only Attribute Routes:

RouteTable.Routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
RouteTable.Routes.IgnoreRoute("{*favicon}", new { favicon = @"(.*/)?favicon.([iI][cC][oO]|[gG][iI][fF])(/.*)?" }); // TODO: Check for Apple Icons

RouteTable.Routes.MapMvcAttributeRoutes();
GlobalConfiguration.Configuration.MapHttpAttributeRoutes();
AreaRegistration.RegisterAllAreas();

在RouteTable所有的MVC路线创建...但不是API的...

In the RouteTable all the MVC routes were created ... But not the API ones ...

我检查了RouteTable.Routes，我看到一个异常：

I checked the RouteTable.Routes and I see an exception:

的对象还没有被初始化。确保HttpConfiguration.EnsureInitialized（）所有其他初始化code后，被称为应用程序的启动code。

The object has not yet been initialized. Ensure that HttpConfiguration.EnsureInitialized() is called in the application's startup code after all other initialization code.

在System.Web.Http.Routing.RouteCollectionRoute.get_SubRoutes（）
  在System.Web.Http.Routing.RouteCollectionRoute.GetEnumerator（）
  在System.Linq.SystemCore_EnumerableDebugView`1.get_Items（）

at System.Web.Http.Routing.RouteCollectionRoute.get_SubRoutes() at System.Web.Http.Routing.RouteCollectionRoute.GetEnumerator() at System.Linq.SystemCore_EnumerableDebugView`1.get_Items()

有关测试此我只加两个Web API操作该项目：

For testing this I added only two Web Api actions to the project:

[RoutePrefix("api")]
public class StatApiController : ApiController {

  [Route("stats/notescreateddaily"), HttpGet]
  public IHttpActionResult NotesCreatedDaily() {
    // Some code
  }

  [Route("stats/userscreateddaily"), HttpGet]
  public IHttpActionResult UsersCreatedDaily() {
    // Some code
  }

}

我缺少的东西吗？

Am I missing something?

感谢您，
米格尔

Thank You, Miguel

推荐答案

解决方案实际上是在替换：

The solution is in fact replacing:

GlobalConfiguration.Configuration.MapHttpAttributeRoutes();

方式：

GlobalConfiguration.Configure(x => x.MapHttpAttributeRoutes());

这是网页API的变化2。

That was a change in Web API 2.

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