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
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
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
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
-
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
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
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
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
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
原文出处:https://www.cnblogs.com/gt1987/p/11806053.html