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  • C#教程之Quartz3.0定时任务学习之异步调度器

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前言

Quartz3与Quartz2的主要区别有两点：

1，Quartz3将它的资源类库拆的更细了，比如，想使用Quartz3开发，最少要引用Quartz，Quartz.Jobs，Quartz.Plugins这三个类库。

2，Quartz3整体上使用的是异步创建实例，所以我们使用时就必须要async，await的语法。

下面我们用Quartz3来做一个任务调度。

创建调度器管理类

首先创建Jops类库，然后在Nuget中搜索Quartz.Plugins；如下图：

因为Quartz.Plugins依赖于Quartz，所以引入Quartz.Plugins就会自动引入Quartz。

然后我们创建任务调度管理类—ScheduleControler。代码如下：

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public class ScheduleControler
​
{
    private static IScheduler scheduler;
    private static Dictionary<IJobDetail, IReadOnlyCollection<ITrigger>> dicJop = new Dictionary<IJobDetail, IReadOnlyCollection<ITrigger>>();
    
    private static int triggerId = 0;
    private static string defaultGroupName = "默认组";
    /// <summary>
    /// 初始化调度器
    /// </summary>
    /// <returns></returns>
    public static async Task Init()
    {
        try
        {
            //quartz.config配置文件里的键值对
            //NameValueCollection props = new NameValueCollection
            //{
            //   { "quartz.serializer.type", "binary" }
            //};
            StdSchedulerFactory factory = new StdSchedulerFactory();
            scheduler = await factory.GetScheduler();
            await scheduler.Start();
        }
        catch (SchedulerException se)
        {
            System.Console.WriteLine(se);
        }
    }
    /// <summary>
    /// 运行调度器任务
    /// </summary>
    /// <returns></returns>
    public static async Task Run()
    {
        try
        {
            await scheduler.ScheduleJobs(dicJop, true);
​
        }
        catch (SchedulerException se)
        {
            System.Console.WriteLine(se);
        }
    }
    /// <summary>
    /// 关闭调度器
    /// </summary>
    /// <returns></returns>
    public static async Task Shutdown()
    {
        try
        {
            await scheduler.Shutdown();
​
        }
        catch (SchedulerException se)
        {
            System.Console.WriteLine(se);
        }
    }
    /// <summary>
    /// 添加任务
    /// </summary>
    /// <typeparam name="T">任务类型，继承Ijop</typeparam>
    /// <param name="jopName">任务名</param>
    /// <param name="Interval">运行间隔时间/秒**最小为1秒</param>
    /// <param name="period">等待启动时间/秒**-1为马上启动</param>
    /// <param name="repeatTime">重复次数**-1为永远运行</param>
    /// <param name="endAt">在指定时间后结束/秒**0为不指定结束时间，默认值0</param>
    public static void PushJop<T>(string jopName, int Interval, int period=-1,int repeatTime=-1,int endAt=0)  where T:IJob
        {
            try
            {
                if (Interval <= 0)
                {
                    Interval = 1;
                }
                if (period < -1)
                {
                    period = -1;
                }
                if (repeatTime < -1)
                {
                    repeatTime = -1;
                }
                if (endAt < 0)
                {
                    endAt = -1;
                }
                IJobDetail job = JobBuilder.Create<T>().WithIdentity(jopName, defaultGroupName).UsingJobData("Name", "IJobDetail").Build();
            
                var triggerBuilder  = TriggerBuilder.Create().WithIdentity($"{jopName}.trigger{triggerId}", defaultGroupName);
                if (period == -1)
                {
                    triggerBuilder = triggerBuilder.StartNow();
                }
                else
                {
                    DateTimeOffset dateTimeOffset = DateTimeOffset.Now.AddSeconds(period);
                    triggerBuilder = triggerBuilder.StartAt(dateTimeOffset);
                }
                if (endAt > 0)
                {
                    triggerBuilder = triggerBuilder.EndAt(new DateTimeOffset(DateTime.Now.AddSeconds(endAt)));
                } 
​
                if (repeatTime == -1)
                {
                    triggerBuilder = triggerBuilder.WithSimpleSchedule(x => x.WithIntervalInSeconds(Interval).RepeatForever()); 
                }
                else
                {
                    triggerBuilder = triggerBuilder.WithSimpleSchedule(x => x.WithRepeatCount(Interval).WithRepeatCount(repeatTime));
                }
                ITrigger trigger = triggerBuilder.UsingJobData("Name", "ITrigger")
                     .WithPriority(triggerId)//设置触发器优先级,当有多个触发器在相同时间出发时,优先级最高[数字最大]的优先
                     .Build();
​
                dicJop.Add(job, new HashSet<ITrigger>() { trigger });
                triggerId++;
            }
            catch (SchedulerException se)
            {
                System.Console.WriteLine(se);
            }
        }
​
    public static void PushJop<T>(string jopName, string cronExpress) where T : IJob
    {
        try
        {
            IJobDetail job = JobBuilder.Create<T>().WithIdentity(jopName, defaultGroupName).UsingJobData("Name", "IJobDetail").Build();
            ITrigger trigger = TriggerBuilder.Create()
               .WithIdentity($"{jopName}.trigger{triggerId}", defaultGroupName)
               .WithCronSchedule(cronExpress)
               .ForJob(job)
               .Build();
            dicJop.Add(job, new HashSet<ITrigger>() { trigger });
            triggerId++;
        }
        catch (SchedulerException se)
        {
            System.Console.WriteLine(se);
        }
    }
}
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