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

NetCore3.1

 

 

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

NetCore3.1

 

 

 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

NetCore3.1NetCore3.1

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<MyService> _logger;
System.Timers.Timer timer1;
public MyService(ILogger<MyService> 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);

/// <summary>
/// 每一秒执行一次
/// </summary>
/// <param name="stoppingToken"></param>
/// <returns></returns>
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<ITestD1, TestD1>();
services.AddHostedService<MyService>();
).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<IConfiguration>();
Console.WriteLine(myConfig.GetSection("mykey"));
//其他类中获取
var myService = services.GetRequiredService<ITestD1>();
Console.WriteLine(myService.GetConfig("mykey"));
//

return host;



public interface ITestD1

string GetConfig(string key);


public class TestD1 : ITestD1

/// <summary>
/// 配置信息
/// </summary>
private readonly IConfiguration _configuration;

/// <summary>
/// 构造函数的方式进行依赖注入
/// </summary>
/// <param name="configuration"></param>
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

NetCore3.1

 

 然后到服务中去找 MyWindowsService,启动服务即可

NetCore3.1

 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

NetCore3.1

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