在 .Net core 3.1 中添加 hangfire 后，应用程序无法在服务器上运行

Question

我有一个应用程序 .Net core 3.1。 对于自动作业执行，我已经实现了hangfire。 在本地一切正常，但是当我在服务器上发布它时，我收到 CORS 策略错误。

我已经在启动文件中添加了所有配置，如下所示。

public void ConfigureServices(IServiceCollection services)
{
        services.AddControllers().AddNewtonsoftJson(x => x.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore);
        
        // configure strongly typed settings object
        services.Configure<AppSettings>(Configuration.GetSection("AppSettings"));
        
        services.AddDataProtection();
        
        // Register the Swagger generator, defining 1 or more Swagger documents
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Title = "Crowd-Recruitment", Version = "v1" });
        });
        
        services.AddControllers().AddNewtonsoftJson();
        
        services.AddDbContext<recruitmentContext>(options =>
        options.UseSqlServer(Configuration.GetConnectionString("DevConnection")));
            
        services.AddHangfire(configuration => configuration
        .SetDataCompatibilityLevel(CompatibilityLevel.Version_170)
        .UseSimpleAssemblyNameTypeSerializer()
        .UseRecommendedSerializerSettings()
        .UseSqlServerStorage(Configuration.GetConnectionString("DevConnection"), new SqlServerStorageOptions
        {
            CommandBatchMaxTimeout = TimeSpan.FromMinutes(5),
            SlidingInvisibilityTimeout = TimeSpan.FromMinutes(5),
            QueuePollInterval = TimeSpan.Zero,
            UseRecommendedIsolationLevel = true,
            DisableGlobalLocks = true
        }));
        
        services.AddCors(options =>
        {
            options.AddPolicy("AllOrigins",
                builder => builder.AllowAnyOrigin()
                .AllowAnyMethod()
                .AllowAnyHeader()
                );
        });
        
        
        services.AddHangfireServer();
        services.AddMvc();
        // Auto Mapper Configurations
        var mapperConfig = new MapperConfiguration(mc =>
        {
            mc.AddProfile(new MappingProfile());
        });
        
        IMapper mapper = mapperConfig.CreateMapper();
        services.AddSingleton(mapper);
        
}                

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
 public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
 {
      app.UseMiddleware<ErrorHandlingMiddleware>();
     
      if (env.IsDevelopment())
      {
          ///app.UseDeveloperExceptionPage();
      }
     
         app.UseHangfireDashboard();
         app.UseHangfireServer();
     
     
     
     
      // Enable middleware to serve generated Swagger as a JSON endpoint.
      app.UseSwagger();
      // Enable middleware to serve swagger-ui (HTML, JS, CSS, etc.),changes
      // specifying the Swagger JSON endpoint.
      app.UseSwaggerUI(c =>
      {
          c.SwaggerEndpoint("/swagger/v1/swagger.json", "Crowd-Recruitment");
      });

    app.UseRouting();          
    app.UseCors("AllOrigins");
       
    app.UseAuthentication();
    app.UseAuthorization();

     // custom jwt auth middleware
    app.UseMiddleware<JwtMiddleware>();
    
    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllers();
        endpoints.MapHangfireDashboard();
    });
    
    RecurringJob.AddOrUpdate(() => UpdatePackages(), Cron.Minutely());
}