Asp.net core 使用asp.net core 3.1 web api的解决方案是什么

我正在使用asp.net web api应用程序和owin实现jwt安全性，如下所示

 using Microsoft.Owin;
 using Owin;
 using System.Web.Http;
 using Microsoft.Owin.Security;
 using Microsoft.Owin.Security.Jwt;

 [assembly: OwinStartup(typeof(solution.Startup))]

  namespace solution 
 {
 public class Startup
 {
public void Configuration(IAppBuilder app)
{
  app.MapSignalR();
  HttpConfiguration config = new HttpConfiguration();
  config.MapHttpAttributeRoutes();
  ConfigureOAuth(app);
  app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);
  app.UseWebApi(config);
}
public void ConfigureOAuth(IAppBuilder app)
{
  var issuer = "issuer";
  var audience = "audience";
  var secret = JwtSecurityKey.Create("SecurityKey").GetSymmetricKey();

  // Api controllers with an [Authorize] attribute will be validated with JWT
  var option =
      new JwtBearerAuthenticationOptions
      {
        AuthenticationMode = AuthenticationMode.Active,
        AllowedAudiences = new[] { audience },
        IssuerSecurityTokenProviders = new IIssuerSecurityTokenProvider[]
          {
                    new SymmetricKeyIssuerSecurityTokenProvider(issuer, secret)
          }
      };
  app.UseJwtBearerAuthentication(
        option
    );
 }
}
  }

---

关于如何将其转换为asp.net核心web api应用程序的任何指南或教程？

在启动文件中，您可以执行类似的操作：

配置服务方法

            // Configure JWT authentication
            var key = Encoding.UTF8.GetBytes(AppConfig.Secret);

            services.AddAuthentication(x =>
            {
                x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
                x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
            }).AddJwtBearer(x =>
            {
                x.RequireHttpsMetadata = false;
                x.SaveToken = true;
                x.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters
                {
                    ValidateIssuer = false,      //or true
                    ValidateAudience = false,    //or true
                    ValidateLifetime = true,
                    ValidateIssuerSigningKey = true,
                    //ValidIssuer = "somewhere.com",
                    //ValidAudience = "somewhere.com",
                    IssuerSigningKey = new SymmetricSecurityKey(key)
                };
            });

…并在配置方法中

            app.UseAuthentication();

您可以查看教程：