.net core中Quartz的使用

原来工作中有用到定时任务quartz，不过是在mvc项目中，现在net core项目中也要用到，就开始改版。中间发现在网上的教程只有执行定时计划的过程，却很少有人写注册的过程，觉得有点略坑。所以写此文章一是自己做个记录，二是希望能帮助到其他人。后面还把此功能做出了多任务定时执行，网上关于net core的教程更是少了，花费了不少时间实现了出来。

quartz版本：3.0.7

1.nuget中下载安装quartz

2.新建quartz帮助类

 (1)新建quartzjob类，代码如下：

public class quartzjob : ijob
    {
        public async task execute(ijobexecutioncontext context)
        {
            var jobkey = context.jobdetail.key;//获取job信息
            var triggerkey = context.trigger.key;//获取trigger信息

            loghelper.info($"{datetime.now} quartzjob:==>>自动执行.{jobkey.name}|{triggerkey.name}");
            await task.completedtask;
        }
    }

  ps： 上面代码中的jobkey和triggerkey可获取到自己定义的job和trigger的信息，这样做多任务时可区分要执行的是哪个任务. 另loghelper.info是自己封装好的日子记录类，可替换为自己的日志类

（2）新建quartzfactory类，代码如下： 

public class quartzfactory : ijobfactory
    {
        private readonly iserviceprovider _serviceprovider;

        public quartzfactory(iserviceprovider serviceprovider)
        {
            _serviceprovider = serviceprovider;
        }

        public ijob newjob(triggerfiredbundle bundle, ischeduler scheduler)
        {
            var jobdetail = bundle.jobdetail;

            var job = (ijob)_serviceprovider.getservice(jobdetail.jobtype);
            return job;
        }

        public void returnjob(ijob job)
        {
        }
    }

 （3）新建quartzservice类，代码如下：

#region 单任务
        public static void startjob<tjob>() where tjob : ijob
        {
            var scheduler = new stdschedulerfactory().getscheduler().result;

            var job = jobbuilder.create<tjob>()
                .withidentity("job")
                .build();

            var trigger1 = triggerbuilder.create()
                .withidentity("job.trigger")
                .startnow()
                .withsimpleschedule(x => x.withinterval(timespan.fromseconds(5)).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.fromseconds(5)).repeatforever())
                .forjob(job)
                .build();

            var trigger2 = triggerbuilder.create()
                .withidentity("job.trigger2")
                .startnow()
                .withsimpleschedule(x => x.withinterval(timespan.fromseconds(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, quartzfactory>();
            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

3.在startup.cs中注册代码

public void configureservices(iservicecollection services)
{
            services.addquartz(typeof(quartzjob));

           //........
}


public void configure(iapplicationbuilder app, ihostingenvironment env, iloggerfactory loggerfactory)
{
    quartzservice.startjobs<quartzjob>();
    //........
}

 ps: 因addquartz方法定义的是type[]类型，所以可传多个执行类，如：services.addquartz(typeof(quartzjob1), typeof(quartzjob2)); 不过这样做startjob()方法就得另处理下，这里就略过

 

ok，大功告成，这个东西折腾了两天终于尘埃落定了，执行结果如下：