在 .NET 3.0 中的 Worker 服务上运行 ASP.NET Core

Question

我已经设法构建了一个 Worker Service，并将 ASP.NET Core API 添加到该服务中，该服务运行良好。我面临的问题是将其安装为 Windows 服务。自从升级到 .NET 3.0 以来，发生了很多重大变化，尤其是 HostBuilder

下面是我的Program class

 public static void Main(string[] args)
        {
            CreateHostBuilder(args).Build().Run();
            CreateWebHostBuilder(args).Build().Run();
        }

public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .UseWindowsService()
            .ConfigureServices((hostcontext, svc) =>
            {
                svc.AddHostedService<Worker>();
            });

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()
                .UseContentRoot(Directory.GetCurrentDirectory())
                .UseKestrel((context, serverOptions) =>
                {
                    serverOptions.ListenAnyIP(1044);
                    serverOptions.Limits.KeepAliveTimeout = TimeSpan.FromMinutes(1.5);
                });

当我像这样运行它时，它无法选择 WebHost 构建器，而当我只使用 WebHost 构建器运行时，它无法在目标服务器上安装服务。

请协助我想利用IWebHostBuilder 和IHostBuilder 的优点，但我不知道如何在static main 方法中组合它们。

以下是其他文件；

StartUp

 public void ConfigureServices(Microsoft.Extensions.DependencyInjection.IServiceCollection services)
        {
            services.AddHostedService<Worker>();

            ////Add Controllers
            //services.AddTransient<SalesForceDataLoaderController>();


            //Add DB Dependency Injection
            services.AddAutoMapper(typeof(Startup));

            services.AddMvc().AddJsonOptions(options =>
            {
                options.UseCamelCasing(true);
            }).AddControllersAsServices();
            services.AddDbContext<SalesForceReportLoaderContext>(options =>
                options.UseSqlServer(this.APIdb));

            services.AddScoped<IRepositoryWrapper, RepositoryWrapper>();
            services.AddScoped<ILogger, Logger<SalesForceDataLoaderController>>();
            services.AddScoped<ILogger, Logger<ActisureWhatsAppController>>();
            services.AddScoped<ILogger, Logger<PureWhatsAppController>>();

            services.AddSingleton(typeof(IRepository<>), typeof(Repository<>));
            services.AddSingleton<ISalesforceLoaderRepository, SalesforceLoaderRepository>();
            services.AddSingleton<IActWhatsAppClaimStatusRepo, ActWhatsAppClaimStatusRepo>();
            services.AddSingleton<IPureWhatsAppClaimStatusRepo, PureWhatsAppClaimStatusRepo>();
            services.AddSingleton<IPureWhatsAppPolicyDetailsRepo, PureWhatsAppPolicyDetailsRepo>();


        }

        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            app.UseMvc();
            //app.UseRouting();

        }

还有我的worker class

 public class Worker : BackgroundService
    {
        private readonly ILogger<Worker> _logger;

        public Worker(ILogger<Worker> logger)
        {
            _logger = logger;
        }

        public override Task StartAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("Service Starting at: {time}", DateTimeOffset.Now);
            return base.StartAsync(cancellationToken);
        }

        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            while (!stoppingToken.IsCancellationRequested)
            {
                try
                {
                    //Run a request

                }
                catch (Exception ex)
                {
                    _logger.LogError(ex.InnerException.ToString());
                }

                _logger.LogInformation("Salesforce Service running at: {time}", DateTimeOffset.Now);
                await Task.Delay(2500, stoppingToken);
            }
        }

        public override Task StopAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("Service Stop at: {time}", DateTimeOffset.Now);
            return base.StopAsync(cancellationToken);
        }

        public override void Dispose()
        {
            _logger.LogInformation("Resources released at: {time}", DateTimeOffset.Now);
            base.Dispose();
        }
    }

编辑

我现在已经正常使用svc 安装了该服务，但我不断收到此错误

[SC] StartService FAILED 1053:

The service did not respond to the start or control request in a timely fashion.

Answer 1

我设法解决了这个问题并在我的机器上本地部署了服务；原来包裹是分开的； Microsoft.AspNetCore.Hosting.WindowsServices和Microsoft.Extensions.Hosting.WindowsServices

所以我所要做的就是添加包并重构program.cs，如下所示；

public static void Main(string[] args)
        {

            CreateWebHostBuilder(args).Build().RunAsService();

        }

public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseContentRoot(Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName))
                .UseStartup<Startup>()
                .UseKestrel((context, serverOptions) =>
                {
                    serverOptions.ListenAnyIP(1044);
                    serverOptions.Limits.KeepAliveTimeout = TimeSpan.FromMinutes(1.5);
                });

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