NetCore3.1 制作windows服务

NetCore3.1 制作windows服务

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本篇博客演示控制台程序发布为windows服务，涉及依赖注入，配置文件读取，backGroundService，及 timer

1、新建控制台程序 MyWindowsService

2、添加Nuget引用 Microsoft.Extensions.Hosting、Microsoft.Extensions.Hosting.WindowsServices

3、新建类 MyService 并 继承自 BackgroundService

MyService继承BackgroundService 后，必须要重新实现ExecuteAsync方法，除了ExecuteAsync方法外，还有StartAsync 和 StopAsync 两个方法可用来重写

using Microsoft.Extensions.Hosting;using Microsoft.Extensions.Logging;using System;using System.Collections.Generic;using System.Text;using System.Threading;using System.Threading.Tasks;namespace MyWindowsService{ public class MyService : BackgroundService { private readonly ILogger _logger; System.Timers.Timer timer1; public MyService(ILogger logger) { _logger = logger; } public override Task StartAsync(CancellationToken cancellationToken) { if (!cancellationToken.IsCancellationRequested) { timer1 = new System.Timers.Timer(); timer1.Interval = 1000 * 1; //设置计时器事件间隔执行时间 每隔1秒执行一次 timer1.Elapsed += new System.Timers.ElapsedEventHandler(timer1_Elapsed); timer1.Enabled = true; } return base.StartAsync(cancellationToken); } ///

/// 每一秒执行一次 ///

/// /// protected override async Task ExecuteAsync(CancellationToken stoppingToken) { while (!stoppingToken.IsCancellationRequested) { var now = DateTime.Now; Console.WriteLine("ExecuteAsync执行结果：" + now); await Task.Delay(1000, stoppingToken); } // if (!stoppingToken.IsCancellationRequested) { //只执行一次 var now = DateTime.Now; Console.WriteLine("ExecuteAsync执行结果：" + now); await Task.Delay(1000, stoppingToken); } if (stoppingToken.IsCancellationRequested) { //不使用ExecuteAsync ，使用自定义的timer1 var now = DateTime.Now; Console.WriteLine("ExecuteAsync执行结果：" + now); await Task.Delay(1000, stoppingToken); } } public override Task StopAsync(CancellationToken cancellationToken) { timer1.Enabled = false; return base.StopAsync(cancellationToken); } private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e) { var now = DateTime.Now; Console.WriteLine("timer1_Elapsed执行结果：" + now); } }}

View Code

4、添加appsettings.json文件

{ "Logging": { "LogLevel": { "Default": "Information", "Microsoft": "Warning", "Microsoft.Hosting.Lifetime": "Information" } }, "myKey": "hello windows service"}

5、Program.cs代码如下

using Microsoft.Extensions.Configuration;using Microsoft.Extensions.DependencyInjection;using Microsoft.Extensions.Hosting;using System;namespace MyWindowsService{ internal class Program { static void Main(string[] args) { CreateHostBuilder(args).Run(); } public static IHost CreateHostBuilder(string[] args) { var builder = Host.CreateDefaultBuilder(args) .ConfigureServices((hostContext, services) => { services.AddTransient(); services.AddHostedService(); }).ConfigureAppConfiguration((hostContext, configApp) => { configApp.AddJsonFile("appsettings.json"); }).UseWindowsService(); var host = builder.Build(); using (var serviceScope = host.Services.CreateScope()) { var services = serviceScope.ServiceProvider; var myConfig = services.GetRequiredService(); Console.WriteLine(myConfig.GetSection("mykey")); //其他类中获取 var myService = services.GetRequiredService(); Console.WriteLine(myService.GetConfig("mykey")); // } return host; } } public interface ITestD1 { string GetConfig(string key); } public class TestD1 : ITestD1 { ///

/// 配置信息 ///

private readonly IConfiguration _configuration; ///

/// 构造函数的方式进行依赖注入 ///

/// public TestD1(IConfiguration configuration) { _configuration = configuration; } public string GetConfig(string key) { return _configuration.GetSection(key).Value; } }}

6、发布控制台程序为windows服务

以管理员身份运行 cmd，打开cmd 窗口

执行如下命令

sc create MyWindowsService binPath="E:\Project\WuAnPolice\MyWindowsService\bin\Debug\netcoreapp3.1\MyWindowsService.exe" DisplayName="MyWindowsService" start=auto

然后到服务中去找 MyWindowsService，启动服务即可

7、删除windows服务

将要删除的服务重置为禁用状态，然后执行如下指令

sc delete MyWindowsService

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