Question

“ Microsoft.Extensions.Hosting”中用于控制台应用程序的通用主机生成器的Web主机生成器的等效代码是什么：

var hostBuilder = WebHost.CreateDefaultBuilder(args).UseConfiguration(config).UseStartup<TStartup>();

Answer 1

我找不到完全类似的东西。我使用下一个代码。为我的后台服务。

 public static async Task Main(string[] args)
        {


            var host = new HostBuilder()
                .ConfigureHostConfiguration(configHost => configHost.AddEnvironmentVariables("ASPNETCORE_"))
                .ConfigureAppConfiguration((hostContext, configApp) =>
                {
                    configApp.SetBasePath(GetConfigDirectoryPath());
                    configApp.AddJsonFile("appsettings.json", optional: false);
                    configApp.AddJsonFile($"appsettings.{hostContext.HostingEnvironment.EnvironmentName}.json", optional: true);
                })
                .ConfigureServices(ConfigureServices)
                .UseHostedService<MyBackgroundService>()
                .Build();

            await host.RunAsync();
        }


  private static void ConfigureServices(HostBuilderContext hostBuilderContext, IServiceCollection services)
        {
            services.AddDbContext<AppDbContext>(options => options.UseSqlServer(hostBuilderContext.Configuration.GetConnectionString("Default")));

            services.AddTransient<IDbContextProvider<AppDbContext>, DefaultDbContextProvider>();
            services.AddTransient<IUnitOfWorkManager, UnitOfWorkManager>();

            services.AddTransient(typeof(IUnitOfWork), typeof(EfCoreUnitOfWork));
            services.AddTransient(typeof(IReadOnlyRepository<>), typeof(EfCoreReadOnlyRepositoryBase<>));
            services.AddTransient(typeof(IReadOnlyRepository<,>), typeof(EfCoreReadOnlyRepositoryBase<,>));
            services.AddTransient(typeof(IRepository<>), typeof(EfCoreRepositoryBase<>));
            services.AddTransient(typeof(IRepository<,>), typeof(EfCoreRepositoryBase<,>));

            services.AddDistributedRedisCache(options => options.Configuration = hostBuilderContext.Configuration.GetSection("Redis:Configuration").Value);

            //Register AutoMapper profiles
            var assemblies = AppDomain.CurrentDomain.GetAssemblies();
            services.AddAutoMapper(assemblies);
        }

正在实施后台服务


  public class MyBackgroundService : BackgroundService

  public static class Extensions
    {
        public static IHostBuilder UseHostedService<T>(this IHostBuilder hostBuilder)
            where T : class, IHostedService, IDisposable
        {
            return hostBuilder.ConfigureServices(services =>
                services.AddHostedService<T>());
        }
    }

通用主机生成器

1 个答案: