ASP.NET Core 3.1 区域在某些方法上返回 404，但在索引一上不返回

Question

我有以下简单的解决方案，其中一个名为 Test 的区域：

在我的 Startup.cs 中：

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddAuthentication(AzureADB2CDefaults.AuthenticationScheme)
            .AddAzureADB2C(options => Configuration.Bind("AzureAdB2C", options));
        services.AddControllersWithViews();
        services.AddRazorPages();
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Home/Error");
            // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
            app.UseHsts();
        }
        app.UseHttpsRedirection();
        app.UseStaticFiles();

        app.UseRouting();

        app.UseAuthentication();
        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllerRoute(
                name: "test",
                pattern: "Test/{controller=Map}/{action=Index}/{id?}");

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

在 MapController.cs 中：

[Area("Test")]
[Route("test/[controller]")]
public class MapController : Controller
{
    public IActionResult Index()
    {
        return View();
    }

    [Route("[action]")]
    public IActionResult LoadNearbySitesAsync()
    {
        return Ok("data");
    }
}

当我尝试访问https://localhost:44319/Test/Map/Index 时，会显示 Index 页面。 当我尝试访问https://localhost:44319/Test/Map/LoadNearbySitesAsync 时，出现 HTTP 404 异常：

当我尝试使用 jQuery $.get函数访问LoadNearbySitesAsync方法时，我也会收到 HTTP 404 异常。

之前，我使用的是 ASP.NET Core 2.2，它运行良好。 现在我切换到 ASP.NET Core 3.1 和新的 Endpoints 东西，我无法让它工作。

我尝试了[Area]和[Route]属性的不同组合，我什至在LoadNearbySitesAsync方法上添加了[Route("[action]")]属性，但LoadNearbySitesAsync没有任何效果。

知道我在这里缺少什么吗？

Answer 1

1. 从LoadNearbySitesAsync操作中删除[Route("[action]")]从LoadNearbySitesAsync删除[Route("Test/[controller]")]
2. 将MapControllerRoute更改为MapAreaControllerRoute

app.UseEndpoints(endpoints => {
        endpoints.MapControllers();
        endpoints.MapAreaControllerRoute(
            "Test",
            "Test",
            "Test/{controller=Map}/{action=Index}/{id?}");

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

3. 将操作名称从LoadNearbySitesAsync为LoadNearbySites或调用此 URL https://localhost:44319/Test/Map/LoadNearbySites

有关更多信息，您可以查看此链接