我需要一些帮助。我想弄清楚如何在Quartz.Net中安排工作。 Quartz中的作业对应于我的Web应用程序中的任务,这些任务在我的Web应用程序中都是作业的一部分。我希望用户能够按需启动作业(WebApplication Context)并使其立即运行或在将来安排作业,并且可能在给定的时间间隔内重复。我知道所有这些项目是如何在Quartz中单独完成的,但我很难将它们放在一起。
例如,在我的Web应用程序中,我可能按照特定顺序拥有多项任务。我希望能够在quartz中安排这些任务,以便它们以我的Web应用程序中确定的相同顺序执行。有人知道怎么做吗?我已阅读Quartz文档,说要将下一个Job存储在JobDataMap中,只是在努力解决它。
我正在等待创建Quartz作业,直到用户请求安排作业或运行它。您是否认为我应该创建作业并触发在Web App中创建任务,然后从任务对象中提取该信息以便在Quartz中进行调度?
答案 0 :(得分:11)
你需要的是JobChainingJobListener
课程,它可以帮助你按照你想要的特定顺序为你的工作创建一系列执行。
using System;
using System.Text;
using Quartz;
using Quartz.Impl;
using Quartz.Impl.Calendar;
using Quartz.Listener;
using Quartz.Impl.Matchers;
using System.Threading;
namespace QuartzNET.Samples
{
class Program
{
static void Main(string[] args)
{
// Create RAMJobStore instance
DirectSchedulerFactory.Instance.CreateVolatileScheduler(5);
ISchedulerFactory factory = DirectSchedulerFactory.Instance;
// Get scheduler and add object
IScheduler scheduler = factory.GetScheduler();
StringBuilder history = new StringBuilder("Runtime History: ");
scheduler.Context.Add("History", history);
JobKey firstJobKey = JobKey.Create("FirstJob", "Pipeline");
JobKey secondJobKey = JobKey.Create("SecondJob", "Pipeline");
JobKey thirdJobKey = JobKey.Create("ThirdJob", "Pipeline");
// Create job and trigger
IJobDetail firstJob = JobBuilder.Create<FirstJob>()
.WithIdentity(firstJobKey)
//.StoreDurably(true)
.Build();
IJobDetail secondJob = JobBuilder.Create<SecondJob>()
.WithIdentity(secondJobKey)
.StoreDurably(true)
.Build();
IJobDetail thirdJob = JobBuilder.Create<ThirdJob>()
.WithIdentity(thirdJobKey)
.StoreDurably(true)
.Build();
ITrigger firstJobTrigger = TriggerBuilder.Create()
.WithIdentity("Trigger", "Pipeline")
.WithSimpleSchedule(x => x
.WithMisfireHandlingInstructionFireNow()
.WithIntervalInSeconds(5)
.RepeatForever())
.Build();
JobChainingJobListener listener = new JobChainingJobListener("Pipeline Chain");
listener.AddJobChainLink(firstJobKey, secondJobKey);
listener.AddJobChainLink(secondJobKey, thirdJobKey);
scheduler.ListenerManager.AddJobListener(listener, GroupMatcher<JobKey>.GroupEquals("Pipeline"));
// Run it all in chain
scheduler.Start();
scheduler.ScheduleJob(firstJob, firstJobTrigger);
scheduler.AddJob(secondJob, false, true);
scheduler.AddJob(thirdJob, false, true);
Console.ReadLine();
scheduler.Shutdown();
Console.WriteLine("Scheduler shutdown.");
Console.WriteLine(history);
Console.ReadLine();
}
}
class FirstJob : IJob
{
public void Execute(IJobExecutionContext context)
{
var history = context.Scheduler.Context["History"] as StringBuilder;
history.AppendLine();
history.AppendFormat("First {0}", DateTime.Now);
Console.WriteLine("First {0}", DateTime.Now);
}
}
class SecondJob : IJob
{
public void Execute(IJobExecutionContext context)
{
var history = context.Scheduler.Context["History"] as StringBuilder;
history.AppendLine();
history.AppendFormat("Second {0}", DateTime.Now);
Console.WriteLine("Second {0}", DateTime.Now);
}
}
class ThirdJob : IJob
{
public void Execute(IJobExecutionContext context)
{
var history = context.Scheduler.Context["History"] as StringBuilder;
history.AppendLine();
history.AppendFormat("Third {0}", DateTime.Now);
Console.WriteLine("Third {0}", DateTime.Now);
Console.WriteLine();
}
}
}
答案 1 :(得分:4)
在第二段:如果我理解正确,你有一组工作,用户可以从中选择并按照特定的执行顺序。我会通过创建用户选择的每种作业类型的作业实例来接近它。为了保持作业的顺序,您可以将下一个作业的组名和作业名存储在上一个作业的JobDataMap中。然后,您可以拥有一个通用的JobListener,它已在所有作业中注册。执行作业时将通知侦听器,并将作为参数传递作业包。 JobListener可以枚举刚刚执行的作业的JobDataMap。如果它找到具有键“nextjobname”的键值对,则JobListener将向调度程序查询此作业。对作业包中也可用的调度程序的引用。如果调度程序返回给定名称的JobDetail实例,JobListener将执行它,在完成时会收到通知,依此类推,直到它到达JobDataMap中具有“nextjobname”的作业。
或者,如果您不想拥有Job Listeners,您可以拥有一个实现此功能的基本Job类。您的所有作业都将从此类派生,并将覆盖其虚拟Execute方法。您可以在覆盖实现返回之前调用base.Execute(context)。
public class Basejob : IJob
{
public virtual void Execute(JobExecutionContext context)
{
string nextJob = context.MergedJobDataMap["nextjobname"];
JobDetail nextjob = context.Scheduler.GetJobDetail(context.MergedJobDataMap["nextjobname"],
context.MergedJobDataMap["nextjobgroupname"]);
if(nextjob != null)
{
context.Scheduler.ScheduleJob(nextjob, new SimpleTrigger(nextjob.Name + "trigger")); // this will fire the job immediately
}
}
}
public class MyJob : BaseJob
{
public override void Execute(JobExecutionContext context)
{
//do work
base.Execute(context);
}
}