WebApi 2 使用属性路由构建嵌套路由。导致同时映射到两个控制器答案

【问题标题】：WebApi 2 Building nested route using attribute routing. Results in mapping to two controllers at the same timeWebApi 2 使用属性路由构建嵌套路由。导致同时映射到两个控制器
【发布时间】：2014-09-16 13:41:38
【问题描述】：

我有两个控制器，一个名为“Products”，另一个名为“ProductsGroup”

[RoutePrefix("api/{clientUrl}/products")]
public class ProductsController : BaseApiController
{
    /// <summary>
    /// Get all products from a client
    /// </summary>
    /// <returns></returns>
    [Route("")]
    public HttpResponseMessage Get()
    {
        var model = Repository.GetProducts(ClientId).Select(p => ModelFactory.Create<ProductsModel>(p));
        return Request.CreateResponse(HttpStatusCode.OK, model);
    }
}

[RoutePrefix("api/{clientUrl}/products/groups")]
public class ProductGroupsController : BaseApiController
{
    /// <summary>
    /// Get all productgroups
    /// </summary>
    /// <returns></returns>
    [Route("")]
    public HttpResponseMessage Get()
    {
        var model = Repository.GetProductGroups(ClientId);
        return Request.CreateResponse(HttpStatusCode.OK, model);
    }
}

当我像这样路由时，由于“找到与 URL 匹配的多个控制器类型”，我无法访问 ProductGroupsController

是否可以让路由忽略url中的“products”部分，只映射到productgroupscontroller？

【问题讨论】：

标签： c# asp.net-web-api asp.net-web-api-routing

【解决方案1】：

考虑为两者使用单个控制器：

[RoutePrefix("api/{clientUrl}/products")]
public class ProductsController : BaseApiController
{
    [Route("")]
    public HttpResponseMessage GetProducts()  {}

    [Route("groups")]
    public HttpResponseMessage GetProductGroups()  {}
}

或者不要使用RoutePrefixes：

public class ProductsController : BaseApiController
{
    [Route("api/{clientUrl}/products")]
    public HttpResponseMessage Get()  {}
}

public class ProductGroupsController : BaseApiController
{
    [Route("api/{clientUrl}/products/groups")]
    public HttpResponseMessage Get()    {  }
}

【讨论】：

那么，我会选择单控制器。谢谢！