.NET API部署至Railway后无法访问，请求返回405错误

Heroku停止免费服务后，我将开发的.NET API部署到Railway平台，但遇到访问问题：

• 通过Dockerfile部署时，流程显示成功，但使用Railway生成的域名访问API，Postman发起请求返回405 Method Not Allowed错误
• 尝试不使用Dockerfile直接部署，同样失败

Program.cs代码 #

using Aplicacao.Interfaces;
using Aplicacao.Services;
using Dominio.Mensagem;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.IdentityModel.Tokens;
using Microsoft.OpenApi.Models;
using Repositorio.Interfaces;
using Repositorio.Repositories;
using System.Text;

var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Configuration.AddUserSecrets<Program>();
builder.Configuration.AddKeyPerFile(directoryPath: "/run/secrets", optional: true);
builder.Services.AddControllers();
builder.Services.AddSingleton<ConexaoBanco>();
builder.Services.AddAutoMapper(AppDomain.CurrentDomain.GetAssemblies());
builder.Services.Configure<ApiBehaviorOptions>(options => { options.SuppressModelStateInvalidFilter = true; });
builder.Services.AddCors(options =>
{
    options.AddPolicy("CorsPolicy", builder => builder
        .AllowAnyOrigin()
        .AllowAnyMethod()
        .AllowAnyHeader());
});
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new OpenApiInfo
    { Title = "ApiLoginUsuario", Version = "1.0" });
    c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme()
    {
        Name = "Authorization",
        Type = SecuritySchemeType.ApiKey,
        Scheme = "Bearer",
        BearerFormat = "JWT",
        In = ParameterLocation.Header,
        Description = "JWT Authorization header using the Bearer scheme.",
    });
    c.AddSecurityRequirement(new OpenApiSecurityRequirement
                {
                    {
                          new OpenApiSecurityScheme
                          {
                              Reference = new OpenApiReference
                              {
                                  Type = ReferenceType.SecurityScheme,
                                  Id = "Bearer"
                              }
                          },
                         new string[] {}
                    }
                }); ;
});
builder.Services.AddScoped<IMensagem, Mensagem>();
builder.Services.AddScoped<IUserService, UserService>();
builder.Services.AddScoped<IUsuarioRepository, UsuarioRepository>();
builder.Services.AddScoped<ITokenService, TokenService>();
builder.Services.AddTransient<IEmailService, EmailService>();
var tokenDecriptor = builder.Configuration["Secrets:TokenKey"];
Console.WriteLine(tokenDecriptor);
var key = Encoding.ASCII.GetBytes(tokenDecriptor);
builder.Services.AddAuthentication(x =>
{
    x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(x =>
{
    x.TokenValidationParameters = new TokenValidationParameters
    {
        ValidateIssuerSigningKey = true,
        IssuerSigningKey = new SymmetricSecurityKey(key),
        ValidateIssuer = false,
        ValidateAudience = false
    };
});
var app = builder.Build();


// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}
app.UseRouting();

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

app.UseHttpsRedirection();

app.UseCors("CorsPolicy");

app.MapControllers();


app.Run();

Dockerfile内容 #

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app
EXPOSE 7028

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY ["ApiLoginUsuario/ApiLoginUsuario.csproj", "ApiLoginUsuario/"]
COPY ["Aplicacao/Aplicacao.csproj", "Aplicacao/"]
COPY ["Repositorio/Repositorio.csproj", "Repositorio/"]
COPY ["Dominio/Dominio.csproj", "Dominio/"]
RUN dotnet restore "ApiLoginUsuario/ApiLoginUsuario.csproj"
COPY . .
WORKDIR "/src/ApiLoginUsuario"
RUN dotnet build "ApiLoginUsuario.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "ApiLoginUsuario.csproj" -c Release -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
RUN rm -rf /app/build
ENTRYPOINT ["dotnet", "ApiLoginUsuario.dll"]

相关截图说明 #

• 部署日志：显示部署流程执行成功
• 访问域名结果：请求返回405 Method Not Allowed错误

内容的提问来源于stack exchange，提问作者Marcus Vinicius