asp.net Core 自定义端口

官方文档

aspnet内库源码： https://github.com/aspnet
dotnet系统内库源码：https://github.com/dotnet
asp.net core 官方文档

自定义端口访问

webHost增加UseUrls。例：WebHost.UseUrls("http://:5001","http://:5002");
配置文件 hosting.json。例：

通过查看WebHost源码我们得知，启动后会先读取相关配置参数，

internal class WebHost:IWebHost
{
    private static readonly string DeprecatedServerUrlsKey = "server.urls";
    //...
    private void EnsureServer()
    {
        if (Server == null)
        {
            //...
            if (addresses != null && !addresses.IsReadOnly && addresses.Count == 0)
            {
            var urls = _config[WebHostDefaults.ServerUrlsKey] ?? _config[DeprecatedServerUrlsKey];                  
            }
        }
    }
}
public static class WebHostDefaults{
    public static readonly string ServerUrlsKey = "urls";
    //...
}

{"server.urls": "http://localhost:5003;http://localhost:5004"}

 public class Program
 {
    public static void Main(string[] args)
    {
        var config = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("hosting.json", true)
            .Build();

        BuildWebHost(args, config).Run();
            //BuildWebHost(args).Run();
    }

    public static IWebHost BuildWebHost(string[] args, IConfiguration config) =>
        WebHost.CreateDefaultBuilder(args)
            .UseKestrel()
            //  .UseUrls("http://*:5001", "http://*:5002")
            .UseConfiguration(config)
            .UseStartup<Startup>()
            .Build();
    }