安装依赖包

Install-Package Microsoft.Extensions.Hosting

自定义Host服务

    internal class HostedService : IHostedService
    {
        /// <summary>
        /// 主机启动时调用
        /// </summary>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task StartAsync(CancellationToken cancellationToken)
        {
            LogInfo.Info("Host Start!");
            return Task.Run(() =>
            {
                //模拟定时任务
                while (true)
                {
                    LogInfo.Info("Host运行中..");
                    Thread.Sleep(1000);
                }
            });
        }

        /// <summary>
        /// 主机停止时调用
        /// </summary>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task StopAsync(CancellationToken cancellationToken)
        {
            LogInfo.Info("Host Stop!");
            return Task.CompletedTask;
        }
    }

注册Host服务并启动主机

        static async Task Main(string[] args)
        {
            var hostBuilder = new HostBuilder().ConfigureServices(serviceCollection =>
            {
                //注册Host服务接口
                serviceCollection.AddHostedService<HostedService>();
            });
            await hostBuilder.RunConsoleAsync();
        }