ASP.NET Core 3.1 MVC 返回 AmbiguousMatchException，服务器错误 500

Question

我正在使用 ASP.NET Core 3.1 MVC 和领域。

这个问题发生在使用 IIS Express 的开发中，我什至还没有达到可以部署到实时 (IIS) 服务器的程度。服务器在启动过程结束时抛出错误 500。

例外：

Microsoft.AspNetCore.Routing.Matching.AmbiguousMatchException：请求匹配多个端点。

匹配：

FleetLogix.Intranet.Areas.Maps.Controllers.HomeController.Index (FleetLogix.Intranet)
FleetLogix.Intranet.Areas.Admin.Controllers.HomeController.Index (FleetLogix.Intranet)
FleetLogix.Intranet.Controllers.HomeController.Index (FleetLogix.Intranet)

在 Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.ReportAmbiguity(CandidateState[] CandidateState)
在 Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.ProcessFinalCandidates(HttpContext httpContext, CandidateState[] CandidateState)
在 Microsoft.AspNetCore.Routing.Matching.DefaultEndpointSelector.Select(HttpContext httpContext, CandidateState[] CandidateState)
在 Microsoft.AspNetCore.Routing.Matching.DfaMatcher.MatchAsync(HttpContext httpContext)
在 Microsoft.AspNetCore.Routing.Matching.DataSourceDependentMatcher.MatchAsync(HttpContext httpContext)
在 Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.Invoke(HttpContext httpContext)
在 Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext 上下文)
在 Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware.Invoke(HttpContext 上下文)
在 Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext 上下文)

这是我的路线：

app.UseEndpoints(endpoints =>
{
    endpoints.MapAreaControllerRoute(
        name: "AdminArea",
        areaName: "Admin",
        pattern: "Admin/{controller=Home}/{action=Index}/{id?}");

    endpoints.MapAreaControllerRoute(
        name: "AnchorArea",
        areaName: "Anchor",
        pattern: "Anchor/{controller=Home}/{action=Index}/{id?}");

    endpoints.MapAreaControllerRoute(
        name: "DashboardArea",
        areaName: "Dashboard",
        pattern: "Dashboard/{controller=DriverBehaviour}/{action=Index}/{id?}");

    endpoints.MapAreaControllerRoute(
        name: "MapsArea",
        areaName: "Maps",
        pattern: "Maps/{controller=Home}/{action=Index}/{id?}");

    endpoints.MapAreaControllerRoute(
        name: "ReportGroupsArea",
        areaName: "ReportGroups",
        pattern: "ReportGroups/{controller=Home}/{action=Index}/{id?}");

    endpoints.MapAreaControllerRoute(
        name: "MaintenanceArea",
        areaName: "Maintenance",
        pattern: "Maintenance/{controller=Home}/{action=Index}/{id?}");

    endpoints.MapControllers();
    endpoints.MapRazorPages();

    endpoints.MapControllerRoute(
        name: "default",
        pattern: "{controller=Home}/{action=Index}/{id?}");
});

我没有做任何特别的事情。我已经看到了说要向方法添加属性的修复程序，例如：

[HttpGet("{id:int}")]

但这是在抱怨具有相同配置文件的基本索引方法。通往他们的道路是为了区分。

我该如何解决这个问题？

Answer 1

路径“/”或“/Home/Index”请求匹配多个端点。您可以添加区域属性来分隔。所有测试和工作。

1. 将[Area("Admin")] 添加到/Area/Admin/HomeController：

     [Area("Admin")]
     public class HomeController : Controller
     {
          public IActionResult Index()
          {
              return View();
          }
     }
   

2. 将[Area("Maps")] 添加到/Area/Maps/HomeController

    [Area("Maps")]
    public class HomeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
    }
   

现在你有了这些映射：

• localhost:44388/admin => /Area/Admin/HomeController/Index Action
• localhost:44388/maps => /Area/Maps/HomeController/Index Action
• localhost:44388/ => /HomeController/索引操作