MVC core 2.2 conventional routing issue

Question

User-1220080607 posted

conventional routes:

app.UseMvc(routes =>
            {
                routes.MapRoute(name: "person", template: "/person/{info}", defaults: new { controller = "Person", action = "Index" });

  routes.MapRoute(name: "custom_page", template: "/{key1}/{key2}", defaults: new { controller = "Custom", action = "Index" });

});

While using dotnet core 2.1

1.  'example.com/person/name' goes to controller Person

2. 'example.com/customPage/index' goes to controller Custom

here it working ,conventional routing based on order of declared routes take first priority 

While using dotnet core 2.2

1.  'example.com/person/name' goes to controller Custom (Expected to go to  Person Controller)

2. 'example.com/customPage/index' goes to controller Custom

why in 2.2 Conventional based routing order not working?

Answer 1

User475983607 posted

I cannot reproduce this issue given the route table shared in your original post.  Entering example.com/person/name in the browser address bar invokes the person controller in ASP.NET Core 2.2.  Double check your test.

ASP.NET 2.2 configuration

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "person",
                    template: "/person/{info}",
                    defaults: new { controller = "Person", action = "Index" });

                routes.MapRoute(
                    name: "custom_page",
                    template: "/{key1}/{key2}",
                    defaults: new { controller = "Custom", action = "Index" });
            });

Controllers

    public class PersonController : Controller
    {
        public IActionResult Index(string info)
        {
            return Json(new { controller = "Person", parameter = info });
        }
    }

    public class CustomController : Controller
    {
        public IActionResult Index(string key1, string key2)
        {
            return Json(new { controller = "Custom", key1 = key1, key2 = key2});
        }
    }

Answer 2

User711641945 posted

Hi Naveen,

I also test the code and do not reproduce the issue.I suggest that you need to check your code(eg. Action).Or could you share a simple demo that could reproduce your issue.

Here is my working demo:

1.Startup.cs:

app.UseMvc(routes =>
            {
                routes.MapRoute(name: "person", template: "/home/{info}", defaults: new { controller = "Home", action = "Index" });
                routes.MapRoute(name: "custom_page", template: "/{key1}/{key2}", defaults: new { controller = "SearchPage", action = "Index" });
            });

2.HomeController:

 public class HomeController : Controller
{ 
    public IActionResult Index()
        {
            return View();
        }

    public IActionResult Privacy()
        {
            return View();
        }
}

3.SearchPageController:

  public class SearchPageController : Controller
    {
        public async Task<IActionResult> Index()
        {
            return View();
        }
    }

When i use url like:example.com/home/privacy,it would get into the Home/Index.

When i use url like:example.com/page/index,it would get into the SearchPage/Index.

It works well by using your route template in .net core 2.2.

Best Regards,

Rena

Answer 3

User-1220080607 posted

Thanks mgebhard, Rena Ni

When I'm trying in the sample with Dotnet core 2.2 it is working fine. But In my working project, it is not working which is updated from 2.1 to 2.2 a few days ago. 

Answer 4

User711641945 posted

Hi Naveen,

I suggest that you need follow the official document to migrate .net core 2.1 to .net core 2.2. Because I work fine in my working project.

Study the tutorial carefully and recheck if anything forgetting to configure.Here is a basic step to migrate:

1.Update Target Framework Moniker:

<TargetFramework>netcoreapp2.2</TargetFramework>

2.Update package references(all of the package version should be updated):

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.2.0" />
    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.2.0" />
  </ItemGroup>

3.Update compatibility version:

services.AddMvc()
        .SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

More details you could refer to: https://docs.microsoft.com/en-us/aspnet/core/migration/21-to-22?view=aspnetcore-2.2&tabs=visual-studio

Best Regards,

Rena

Answer 5

User-1220080607 posted

Hi Rena Ni,

I followed the same documentation provided by Microsoft to upgrade 2.2 

temporary fix for my code is below

 services.AddMvc(options => options.EnableEndpointRouting = false).SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

this is like fallback to 2.1 routings.

Answer 6

User711641945 posted

Hi Naveen,

 services.AddMvc(options => options.EnableEndpointRouting = false).SetCompatibilityVersion(CompatibilityVersion.Version_2_2);

this is like fallback to 2.1 routings.

Yes.This option means you could use the routing logic of ASP.NET Core 2.1 or earlier.

Refer to: https://docs.microsoft.com/en-us/aspnet/core/fundamentals/routing?view=aspnetcore-2.2

Best Regards,

Rena