Asp.net mvc 如何使用Quartz.net 2.0计划任务？

我试图在ASP.net MVC 4应用程序中使用Quartz.net 2.0计划任务，但无法执行该任务

代码如下：

public class ScheduleTaskConfig
{
    public static void StartScheduler()
    {
        ISchedulerFactory schedulerFactory = new StdSchedulerFactory();

        IScheduler scheduler = schedulerFactory.GetScheduler();

        JobKey emailSenderTaskKey = new JobKey("emailSenderTask", "email");
        IJobDetail emailSenderTask = JobBuilder.Create<QueuedEmailsSendTask>()
            .WithIdentity(emailSenderTaskKey)
            .Build();

        TriggerKey emailSenderTriggerKey = new TriggerKey("emailSenderTrigger", "email");
        ITrigger emailSenderTrigger = TriggerBuilder.Create()
            .WithIdentity(emailSenderTriggerKey)
            .WithSimpleSchedule(s => s.RepeatForever().WithIntervalInSeconds(5))
            .StartNow()
            .Build();

        scheduler.ScheduleJob(emailSenderTask, emailSenderTrigger);
        scheduler.Start();
    }
}

下面是实现IJob接口的类：

public class QueuedEmailsSendTask : IJob
{
    private IQueuedEmailsService _queuedEmailsService { get; set; }
    private IEmailSenderService _emailSenderService { get; set; }

    public QueuedEmailsSendTask(IQueuedEmailsService queuedEmailsService, IEmailSenderService emailSenderService)
    {
        this._queuedEmailsService = queuedEmailsService;
        this._emailSenderService = emailSenderService;
    }

    public void Execute(IJobExecutionContext executeContext)
    {
        //do stuff ...
    }
}

我在Execute方法的开头放置了一个断点，但调试器并没有停止在那里。我做错了什么

更新： 它与实现IJob接口的类没有默认构造函数有关。 如果我这样修改构造函数，它会工作：

public QueuedEmailsSendTask()
{
}

---

但我需要能够注入依赖项。我正在使用Autofac IoC容器。

启动调度程序后，您是否尝试调度作业

public class ScheduleTaskConfig
{
    public static void StartScheduler()
    {
        ISchedulerFactory schedulerFactory = new StdSchedulerFactory();

        IScheduler scheduler = schedulerFactory.GetScheduler();
        scheduler.Start(); //start here   

        //construct job info

        scheduler.ScheduleJob(emailSenderTask, emailSenderTrigger); //schedule here
    }
}

---

要使Quartz.net与IoC容器一起工作，您需要有一个实现IJobFactory的工厂类：

public class AutofacJobFactory : IJobFactory
{
    private readonly IContainer _container;

    public AutofacJobFactory(IContainer container)
    {
        _container = container;
    }

    public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler)
    {
        return (IJob)_container.Resolve(bundle.JobDetail.JobType);
    }
}

然后，需要在初始化代码中将JobFactory实例分配给调度程序：

ISchedulerFactory schedulerFactory = new StdSchedulerFactory();
IScheduler scheduler = schedulerFactory.GetScheduler();
scheduler.JobFactory = new AutofacJobFactory(container);

---

不要忘记在IoC容器中注册作业。

您需要确保

AutofacJobFactory

负责实例化作业。这意味着不使用作业生成器对象。相反，您应该以

jobdailimpl

对象的形式传递计划程序的

AutofacJobFactory

创建的作业的详细信息。您的工作代码如下所示

ISchedulerFactory schedulerFactory = new StdSchedulerFactory();

IScheduler scheduler = schedulerFactory.GetScheduler();
scheduler.JobFactory = new AutofacJobFactory(container);
scheduler.Start(); //start here  

// construct job info
JobDetailImpl jobDetail = new JobDetailImpl("emailSenderTask", null, typeof(QueuedEmailsSendTask));

TriggerKey emailSenderTriggerKey = new TriggerKey("emailSenderTrigger", "email");
ITrigger emailSenderTrigger = TriggerBuilder.Create()
    .WithIdentity(emailSenderTriggerKey)
    .WithSimpleSchedule(s => s.RepeatForever().WithIntervalInSeconds(5))
    .StartNow()
    .Build();

sched.ScheduleJob(jobDetail, trigger);

---

有关完整示例，请参见以下问题

当我调试时，在NewJob方法中，我得到以下异常：“从请求实例的作用域中看不到标记与“AutofacWebRequest”匹配的作用域。这通常表示根据HTTP请求注册的组件正被web集成下的SingleInstance（）组件（或类似场景）请求。始终从DependencyResolver.Current或ILifetimeScopeProvider.RequestLifetime请求依赖项，而不是从容器本身。“在ASP.NET中执行重复的后台任务不是一个好主意（详细信息）。

ISchedulerFactory schedulerFactory = new StdSchedulerFactory();

IScheduler scheduler = schedulerFactory.GetScheduler();
scheduler.JobFactory = new AutofacJobFactory(container);
scheduler.Start(); //start here  

// construct job info
JobDetailImpl jobDetail = new JobDetailImpl("emailSenderTask", null, typeof(QueuedEmailsSendTask));

TriggerKey emailSenderTriggerKey = new TriggerKey("emailSenderTrigger", "email");
ITrigger emailSenderTrigger = TriggerBuilder.Create()
    .WithIdentity(emailSenderTriggerKey)
    .WithSimpleSchedule(s => s.RepeatForever().WithIntervalInSeconds(5))
    .StartNow()
    .Build();

sched.ScheduleJob(jobDetail, trigger);