Как использовать файл program.cs из файла Startup.cs в .NET 6/7? ⇐ C#

[Anonymous]

Я пытаюсь следовать онлайн-руководству по интеграции Flutter с веб-API ASP.NET Core, проблема в том, что руководство устарело и требует от меня создания ASP.NET Core 6 вместо 5.Это код из файла start.cs, который устарел в .NET 6:

Код: Выделить всё

using System;
using AutoMapper;
using fixit.Data;
using fixit.Models;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;

using System.Text;

// using Pomelo.EntityFrameworkCore.MySql;
// using fixit.Service;

namespace fixit
{
public class Startup
{
readonly string AllowedOrigin = "allowedOrigin";

public Startup(IConfiguration configuration)
{
Configuration = configuration;
}

public IConfiguration Configuration { get; }

// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext(opt => opt.UseSqlServer(Configuration.GetConnectionString("fixItConnection")));
services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());

services.AddCors(option =>
{
option.AddPolicy("allowedOrigin",
builder => builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader()
);
});

services.AddControllers();

services.AddScoped();
}

// This method gets called by the runtime.  Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}

app.UseCors(AllowedOrigin);
app.UseHttpsRedirection();

app.UseRouting();

app.UseAuthentication();
app.UseAuthorization();

app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
}

А это program.cs:

Код: Выделить всё

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

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

public static IHostBuilder CreateHostBuilder(string[] args) =>
Host.CreateDefaultBuilder(args)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup();
});
}
}

Я пытался написать program.cs в .NET 6, но приложение не удалось собрать.
Это мой program.cs:

Код: Выделить всё

using fixit.Data;
using fixit.Models;
using Microsoft.Data.SqlClient;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddControllers();
builder.Services.AddScoped();

builder.Services.AddCors(option =>
{
option.AddPolicy("allowedOrigin",
builder => builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader()
);
});

var app = builder.Build();

// For production scenarios, consider keeping Swagger configurations behind the environment check
// if (app.Environment.IsDevelopment())
// {
app.UseSwagger();
app.UseSwaggerUI();
// }

app.UseHttpsRedirection();

string connectionString = app.Configuration.GetConnectionString("AZURE_SQL_CONNECTIONSTRING")!;

try
{
// Table would be created ahead of time in production
using var conn = new SqlConnection(connectionString);
conn.Open();

var command = new SqlCommand(
"CREATE TABLE Service (ID int NOT NULL PRIMARY KEY IDENTITY, servicename varchar(255), description varchar(255), category varchar(255), initialprice );",
conn);
using SqlDataReader reader = command.ExecuteReader();
}
catch (Exception e)
{
// Table may already exist
Console.WriteLine(e.Message);
}

app.MapGet("/Service", () => {
var rows = new List();

using var conn = new SqlConnection(connectionString);
conn.Open();

var command = new SqlCommand("SELECT * FROM Service", conn);
using SqlDataReader reader = command.ExecuteReader();

if (reader.HasRows)
{
while (reader.Read())
{
rows.Add($"{reader.GetInt32(0)}, {reader.GetString(1)}, {reader.GetString(2)}");
}
}

return rows;
})
.WithName("GetPersons")
.WithOpenApi();

app.MapPost("/Service", (Service person) => {
using var conn = new SqlConnection(connectionString);
conn.Open();

var command = new SqlCommand(
$"INSERT INTO Service (serviceid, servicename, description, category,initialprice,intermediateprice,advanceprice) VALUES ('{person.ServiceId}', '{person.ServiceName}','{person.Description}','{person.Category}','{person.InitialPrice}','{person.IntermediatePrice}','{person.AdvancedPrice}')",
conn);

using SqlDataReader reader = command.ExecuteReader();
})
.WithName("CreatePerson")
.WithOpenApi();

app.Run();

Как это решить?

Подробнее здесь: https://stackoverflow.com/questions/762 ... in-net-6-7