Asp.Net Core 2.2中的区域路由问题

Question

Inside my application I appear to have an issue with my route. I cannot determine why the route would be failing. The solution contains a controller that derives from the [ApiController] to adhere to Web Api standards.

Area > > > Devices > > > Sampler (Controller)
/api/Devices/Sampler/GetSamples/1
{area:exists}/{controller}/{action}/{id?}

My notion that the third line template would correlate representing the first and second line when MapAreaRoute is utilized.

application.UseMvc(routes =>
{
     routes.MapAreaRoute(
          name: "Device Route",
          areaName: "Devices",
          template: "api/{area:exists}/{controller}/{action}/{id?}
     );
}

Even if I remove api from template, specify the area, controller, and action I still receive a 404.

[ApiController]
[Area("Devices")]
[Route("api/[controller]")]
public class SamplerController : ControllerBase
{
     [HttpGet("{id}")]
     public JsonResult GetSamples(Guid id) => new JsonResult("...");
}

Could someone elaborate on why the area does not work? If I create a directory called Controllers, then use MapRoute with the same above code the route works as intended.

Answer 1

You need to define the area this controller belongs in by using an attribute per the docs .

    [Area("Products")]
    public class ManageController : Controller

Update: Also you defined api/{area:exists}/{controller}/{action}/{id?} as your route and per your comment you are trying api/devices/sampler/8 . So using your route as a guide your URL should be api/devices/sampler/GetSamples/8 . You need to include the action name in the url since that is how its laid out in your route: api/{area:exists}/{controller}/{action}/{id?}