Topshelf+Quartz在.Net Core框架下的实现

　　在我们日常开发工作中，经常会运用到Quartz+Topshelf组件的组合来开发一些定时任务。那么在.Net Core下如何去使用呢？我自己尝试搭建了一个测试项目，过程中遇到了以下一些问题：

• Quartz 配置文件及版本问题。我们知道Quartz有2个配置文件，quartz.config和quartz.job.xml。前者负责组件初始化配置，后者负责job和triggle的配置。刚开始我是直接把framework下的配置文件直接拿过来用的，启动直接报错。主要问题在quartz.config
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  1	quartz.plugin.xml.type = Quartz.Plugin.Xml.XMLSchedulingDataProcessorPlugin, Quartz

  这一段上。原因Quartz最新版本已经将Plugin模块单独剥离出一个独立的DLL，这里的引用也要变化。需要Nuget上下载Quartz.Plugins组件，并将上一段改成

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  1	quartz.plugin.xml.type = Quartz.Plugin.Xml.XMLSchedulingDataProcessorPlugin, Quartz.Plugins

   

• DI问题。为了贴合.Net Core DI精神，我们也要来实现Console程序的DI功能。第一个问题是Job如何DI？首先我们需要自己去实现JobFactory

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  public class NewJobFactory : IJobFactory {     private readonly IServiceProvider _serviceProvider;       public NewJobFactory(IServiceProvider serviceProvider)     {         _serviceProvider = serviceProvider;     }     public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler)     {         return _serviceProvider.GetService(bundle.JobDetail.JobType) as IJob;     }       public void ReturnJob(IJob job)     {         var disposable = job as IDisposable;         disposable?.Dispose();     } }

  　　注入方式

  IServiceCollection services = new ServiceCollection();
  services.AddScoped<IJobFactory, NewJobFactory>();
  services.AddSingleton(service =>
  {
       var scheduler = StdSchedulerFactory.GetDefaultScheduler().Result;
       scheduler.JobFactory = service.GetService<IJobFactory>();
       return scheduler;
  });

   

• Console程序的配置文件获取以及注入问题。众所周知，.Net Core下建立的Console程序就是一块白板，什么都没有。配置文件我们还得自己去建一个.json文件。并且需要自己从Nuget上下载的组件包（见后面项目结构截图）。加载方式如下
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  private IConfiguration ConfigureConfiguration() {                //配置文件     var builder = new ConfigurationBuilder()         .SetBasePath(Directory.GetCurrentDirectory())         .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);     return builder.Build(); }

  　　注入方式如下

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  if (configuration != null) {     //iconfiguration注入     services.AddSingleton<IConfiguration>(configuration); }   //自定义 option方式注入 services.Configure<AppSetting>(configuration);

  　　这样就可以在后续的类代码中 直接通过DI方式获取IConfiguration对象或者你自己的Option对象了

　　贴上完整代码。

　　Program.cs

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static void Main(string[] args) {     HostFactory.Run(x =>     {         x.Service<ServiceRunner>();         x.SetDescription("gt.dotnetcore.consolesample");         x.SetDisplayName("gt.dotnetcore.consolesample");         x.SetServiceName("gt.dotnetcore.consolesample");           x.StartAutomatically();     }); }

　　ServiceRunner.cs 启动的核心

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public class ServiceRunner : ServiceControl {     //private readonly IScheduler _scheduler;       private IServiceProvider _serviceProvider;     public ServiceRunner()     {         var configurationRoot = ConfigureConfiguration();         _serviceProvider = ConfigureServices(configurationRoot);     }       private IConfiguration ConfigureConfiguration()     {                    //配置文件         var builder = new ConfigurationBuilder()             .SetBasePath(Directory.GetCurrentDirectory())             .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);         return builder.Build();     }     private IServiceProvider ConfigureServices(IConfiguration configuration)     {         //依赖注入         IServiceCollection services = new ServiceCollection();         //后续需要使用log的话，这里需要注入         services.AddTransient<ILoggerFactory, LoggerFactory>();         services.AddTransient<ITest, TestBiz>();         services.AddScoped<IJobFactory, NewJobFactory>();         if (configuration != null)         {             //iconfiguration注入             services.AddSingleton<IConfiguration>(configuration);         }           //自定义 option方式注入         services.Configure<AppSetting>(configuration);         //这里注意Job的注入方式，不要强制指定IJob实现方式！！         services.AddScoped<TestJob>();         services.AddScoped<Test2Job>();         services.AddSingleton(service =>         {             var scheduler = StdSchedulerFactory.GetDefaultScheduler().Result;             scheduler.JobFactory = service.GetService<IJobFactory>();             return scheduler;         });         //构建容器         return services.BuildServiceProvider();     }       public bool Start(HostControl hostControl)     {         var scheduler = _serviceProvider.GetService(typeof(IScheduler)) as IScheduler;         scheduler.Start();         return true;     }       public bool Stop(HostControl hostControl)     {         var scheduler = _serviceProvider.GetService(typeof(IScheduler)) as IScheduler;         scheduler.Shutdown(true);         return true;     } }

　　Test2Job.cs

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public class Test2Job : IJob {     private ITest _testService;     private AppSetting _appsetting;     private IConfiguration _configuration;       public Test2Job(ITest testService, IOptionsMonitor<AppSetting> appSettingAccessor, IConfiguration configuration)     {         _testService = testService;         _appsetting = appSettingAccessor.CurrentValue;         _configuration = configuration;     }     public Task Execute(IJobExecutionContext context)     {         Console.WriteLine($"job2222222222222 started:{_appsetting.TestCN}");         var t = _testService.Dowork(1);         t.Wait();         Console.WriteLine($"job2222222222222 ended:{_configuration["TestCN"]}");           return Task.CompletedTask;     } }

　　

　　项目结构截图

附项目源码 https://gitee.com/gt1987/gt.dotnetcore