Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace ZLMediaServerManagent
{
    public class Program
    {
        public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
        }

        public static IHostBuilder CreateHostBuilder(string[] args)
        {
            var builder = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json");
            //创建配置根对象
            var configurationRoot = builder.Build();


            var webPort = configurationRoot.GetSection("WebPort");
            return Host.CreateDefaultBuilder(args)
                            .ConfigureWebHostDefaults(webBuilder =>
                            {
                                webBuilder.UseUrls("http://*:"+webPort.Value).UseStartup<Startup>();
                            });
        }

    }
}