NET CORE 定时任务 Quartz

引入 Quartz    NuGet 包

新建   IJobFactory 继承类  控制Job

public class DefaultScheduleServiceFactory : IJobFactory
    {
        /// <summary>
        /// 容器提供器，
        /// </summary>
        protected IServiceProvider _serviceProvider;

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="serviceProvider"></param>
        public DefaultScheduleServiceFactory(IServiceProvider serviceProvider)
        {
            _serviceProvider = serviceProvider;
        }

        /// <summary>
        /// 返回IJob
        /// </summary>
        /// <param name="bundle"></param>
        /// <param name="scheduler"></param>
        /// <returns></returns>
        public IJob NewJob(TriggerFiredBundle bundle, IScheduler scheduler)
        {
            //Job类型
            Type jobType = bundle.JobDetail.JobType;

            //返回jobType对应类型的实例
            return _serviceProvider.GetService(jobType) as IJob;
        }

        /// <summary>
        /// 清理销毁IJob
        /// </summary>
        /// <param name="job"></param>
        public void ReturnJob(IJob job)
        {
            var disposable = job as IDisposable;

            disposable?.Dispose();
        }
    }

新建    Job  工厂类 QuartzHostedService 

public class QuartzHostedService : IHostedService
    {
        private readonly ISchedulerFactory _schedulerFactory;
        private readonly IJobFactory _jobFactory;
        private readonly IEnumerable<JobSchedule> _jobSchedules;

        public QuartzHostedService(
            ISchedulerFactory schedulerFactory,
            IJobFactory jobFactory,
            IEnumerable<JobSchedule> jobSchedules)
        {
            _schedulerFactory = schedulerFactory;
            _jobSchedules = jobSchedules;
            _jobFactory = jobFactory;
        }
        public IScheduler Scheduler { get; set; }

        public async Task StartAsync(CancellationToken cancellationToken)
        {
            Scheduler = await _schedulerFactory.GetScheduler(cancellationToken);
            Scheduler.JobFactory = _jobFactory;

            foreach (var jobSchedule in _jobSchedules)
            {
                var job = CreateJob(jobSchedule);
                var trigger = CreateTrigger(jobSchedule);

                await Scheduler.ScheduleJob(job, trigger, cancellationToken);
            }

            await Scheduler.Start(cancellationToken);
        }

        public async Task StopAsync(CancellationToken cancellationToken)
        {
            await Scheduler?.Shutdown(cancellationToken);
        }

        private static IJobDetail CreateJob(JobSchedule schedule)
        {
            var jobType = schedule.JobType;
            return JobBuilder
                .Create(jobType)
                .WithIdentity(jobType.FullName)
                .WithDescription(jobType.Name)
                .Build();
        }

        private static ITrigger CreateTrigger(JobSchedule schedule)
        {
            return TriggerBuilder
                .Create()
                .WithIdentity($"{schedule.JobType.FullName}.trigger")
                .WithCronSchedule(schedule.CronExpression)
                .WithDescription(schedule.CronExpression)
                .Build();
        }

    }

创建  Job 参数类

 public class JobSchedule
    {
        public JobSchedule(Type jobType, string cronExpression)
        {
            JobType = jobType;
            CronExpression = cronExpression;
        }

        public Type JobType { get; }
        public string CronExpression { get; }
    }

创建 任务配置类 QuartzService

public static class QuartzService
    {

        #region 单任务
        public static void StartJob<TJob>(string jobName,int time) where TJob : IJob
        {
            var scheduler = new StdSchedulerFactory().GetScheduler().Result;

            var job = JobBuilder.Create<TJob>()
                .WithIdentity(jobName)
                .Build();

            var trigger1 = TriggerBuilder.Create()
                .WithIdentity("job."+ jobName)
                .StartNow()
                .WithSimpleSchedule(x => x.WithInterval(TimeSpan.FromMinutes(time)).RepeatForever())
                .ForJob(job)
                .Build();

            scheduler.AddJob(job, true);
            scheduler.ScheduleJob(job, trigger1);
            scheduler.Start();
        }
        #endregion

        #region 多任务
        public static void StartJobs<TJob>() where TJob : IJob
        {
            var scheduler = new StdSchedulerFactory().GetScheduler().Result;

            var job = JobBuilder.Create<TJob>()
                .WithIdentity("jobs")
                .Build();

            var trigger1 = TriggerBuilder.Create()
                .WithIdentity("job.trigger1")
                .StartNow()
                .WithSimpleSchedule(x => x.WithInterval(TimeSpan.FromMinutes(5)).RepeatForever())
                .ForJob(job)
                .Build();

            var trigger2 = TriggerBuilder.Create()
                .WithIdentity("job.trigger2")
                .StartNow()
                .WithSimpleSchedule(x => x.WithInterval(TimeSpan.FromMinutes(11)).RepeatForever())
                .ForJob(job)
                .Build();

            var dictionary = new Dictionary<IJobDetail, IReadOnlyCollection<ITrigger>>
            {
                {job, new HashSet<ITrigger> {trigger1, trigger2}}
            };
            scheduler.ScheduleJobs(dictionary, true);
            scheduler.Start();
        }
        #endregion

        #region 配置
        public static void AddQuartz(this IServiceCollection services, params Type[] jobs)
        {
            services.AddSingleton<IJobFactory, DefaultScheduleServiceFactory>();
            services.Add(jobs.Select(jobType => new ServiceDescriptor(jobType, jobType, ServiceLifetime.Singleton)));

            services.AddSingleton(provider =>
            {
                var schedulerFactory = new StdSchedulerFactory();
                var scheduler = schedulerFactory.GetScheduler().Result;
                scheduler.JobFactory = provider.GetService<IJobFactory>();
                scheduler.Start();
                return scheduler;
            });
        }
        #endregion
    }

新建 Job 实现类 

/// <summary>
    /// 创建IJob的实现类，并实现Excute方法。
    /// </summary>
    public class MyJob : IJob
    {
        private readonly IConfiguration _configuration;
        public MyJob(IConfiguration configuration) => this._configuration = configuration;



        public async Task Execute(IJobExecutionContext context)
        {
            await Task.CompletedTask;
        }

        
    }

Startup 注入

public void ConfigureServices(IServiceCollection services)
{
           
          services.AddMvc();

            #region 定时任务 注入
            services.AddSingleton(typeof(MyJob));
            services.AddSingleton<MyJob>();

            services.AddHostedService<QuartzHostedService>();
            services.AddSingleton<ISchedulerFactory, StdSchedulerFactory>();
            services.AddSingleton<IJobFactory, DefaultScheduleServiceFactory>();
            #endregion

           services.Configure<AppSettings>(Configuration);
           
           services.AddControllers();
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{  
           #region 定时任务 执行
            QuartzService.StartJob<MyJob>("MyJob", 1);
           #endregion
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });

}