如何将app.UseExceptionHandler从netcore中的startup.cs移至其他文件？

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Diagnostics;
using Microsoft.AspNetCore.Http;

namespace YourNamespace
{
    public static class ExceptionHandlerExtension
    {
        public static void UseCustomExceptionHandler(this IApplicationBuilder app)
        {
            app.UseExceptionHandler(errorApp =>
            {
                errorApp.Run(async context =>
                {
                    context.Response.StatusCode = 500;
                    context.Response.ContentType = "text/plain";

                    var exceptionHandlerPathFeature = context.Features.Get<IExceptionHandlerPathFeature>();
                    var exception = exceptionHandlerPathFeature?.Error;

                    // 自定义异常处理逻辑
                    // ...

                    await context.Response.WriteAsync("Internal Server Error");
                });
            });
        }
    }
}

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

namespace YourNamespace
{
    public class Startup
    {
        // ...

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            // ...

            // 使用自定义的异常处理中间件
            app.UseCustomExceptionHandler();

            // ...
        }
    }
}