ASP.NET Core：hosting.json urls 未加载

Question

I am trying to override the server url manually with a hosting.json file, however the url never get's used. I am on .net core 2.0.

hosting.json:

{
  "urls": "http://localhost:5000"
}

Program.cs:

public class Program
{
    public static void Main(string[] args)
    {
        BuildWebHost(args).Run();
    }

    public static IWebHost BuildWebHost(string[] args)
    {
        IConfigurationRoot config = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("hosting.json", optional: true)
            .AddCommandLine(args)
            .Build();

        return WebHost.CreateDefaultBuilder(args)
            .UseConfiguration(config)
            .UseStartup<Startup>()
            .Build();
    }
}

Answer 1

Visual Studio gives you two profiles to run application: IIS Express, which fairly obviously runs the application using IIS Express and WebApplication2 (or any given name of your app), the name of the web project, which runs the application using dotnet run using Kastrel instead of IIS. You can try switching and running application from the second profile (it should pick up hosting.config).

If you want to run app on IIS you can change launchSettings.json that is located under project properties

Also, you can find more details how to configure urls here .