可视化定时任务quartz集成解析全过程-编程学习网

前言

在日常的工作中，定时任务也是一个非常常见的需求，可以使用注解实现，但是使用这种方式有几个问题，首先就是如果修改比较麻烦，而且没有提供特定的页面对定时任务进行可视化管理。所以quartz就应运而生。本文将介绍如何实现springboot与quartz的整合。

1.目录结构

配置类配置SchedulerFactory固化定时任务和日志的业务类定时任务类运行配置

2.原理

scheduler是一个计划调度器容器（总部），容器里面可以盛放众多的JobDetail和trigger，当容器启动后，里面的每个JobDetail都会根据trigger按部就班自动去执行。
JobDetail是一个可执行的工作，它本身可能是有状态的。
Trigger代表一个调度参数的配置，什么时候去调。
当JobDetail和Trigger在scheduler容器上注册后，形成了装配好的作业（JobDetail和Trigger所组成的一对儿），就可以伴随容器启动而调度执行了。
scheduler是个容器，容器中有一个线程池，用来并行调度执行每个作业，这样可以提高容器效率

3.表结构

自带有11张系统表和2张业务表(自建)，其中绿色为自己建立的表

4.整合springboot

1.pom文件

        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
            <version>2.2.1</version>
        </dependency>

2.ScheduleConfig

配置工厂类的参数。

@Configuration
public class ScheduleConfig {
 
	@Bean
	public SchedulerFactoryBean schedulerFactoryBean(DataSource dataSource) {
		SchedulerFactoryBean factory = new SchedulerFactoryBean();
		factory.setDataSource(dataSource);
		// quartz参数
		Properties prop = new Properties();
		prop.put("org.quartz.scheduler.instanceName", "QUARTZ");
		prop.put("org.quartz.scheduler.instanceId", "AUTO");
		// 线程池配置
		prop.put("org.quartz.threadPool.class", "org.quartz.simpl.SimpleThreadPool");
		prop.put("org.quartz.threadPool.threadCount", "20");
		prop.put("org.quartz.threadPool.threadPriority", "5");
		// JobStore配置
		prop.put("org.quartz.jobStore.class", "org.quartz.impl.jdbcjobstore.JobStoreTX");
		// 集群配置
		prop.put("org.quartz.jobStore.isClustered", "true");
		prop.put("org.quartz.jobStore.clusterCheckinInterval", "15000");
		prop.put("org.quartz.jobStore.maxMisfiresToHandleAtATime", "1");
		prop.put("org.quartz.jobStore.txIsolationLevelSerializable", "true");
		// sqlserver 启用
		prop.put("org.quartz.jobStore.misfireThreshold", "12000");
		prop.put("org.quartz.jobStore.tablePrefix", "QRTZ_");
		factory.setQuartzProperties(prop);
		factory.setSchedulerName("QUARTZ");
		// 延时启动
		factory.setStartupDelay(1);
		factory.setApplicationContextSchedulerContextKey("applicationContextKey");
		// 可选，QuartzScheduler
		// 启动时更新己存在的Job，这样就不用每次修改targetObject后删除qrtz_job_details表对应记录了
		factory.setOverwriteExistingJobs(true);
		// 设置自动启动，默认为true
		factory.setAutoStartup(true);
		return factory;
	}
}

3.业务类

主要是为页面提供接口。

@RestController
@RequestMapping("/qrtzJob")
public class QrtzJobController {
 
    @Autowired
    private QrtzJobService qrtzJobService;
 
    
    @GetMapping("/check")
    public boolean checkCron(String cron) {
        try {
            return CronExpression.isValidExpression(cron);
        } catch (Exception e) {
            return false;
        }
    }
 
    
    @GetMapping("/selectQrtzJob")
    @ApiOperation(value = "通过实体查询", notes = "通过实体查询")
    public Result<List<QrtzJobVO>>
        selectQrtzJob(@ApiParam(name = "入参对象", value = "实体", required = false) QrtzJobVO qrtzJobVO) {
        Result<List<QrtzJobVO>> resultVO = new Result<>();
        // 业务查询
        List<QrtzJobVO> resultListQrtzJob = qrtzJobService.queryQrtzJobAll(qrtzJobVO);
        resultVO.setData(resultListQrtzJob);
        return resultVO;
    }
 
    
    @PostMapping("/createQrtzJob")
    @ApiOperation(value = "通过实体添加", notes = "通过实体添加")
    public Result
        createQrtzJob(@ApiParam(name = "入参对象", value = "实体", required = false) @RequestBody QrtzJobVO qrtzJobVO) {
        Result resultVO = new Result();
        // 业务处理
        qrtzJobService.createScheduleJob(qrtzJobVO);
        return resultVO;
    }
 
    
    @PutMapping("/updateQrtzJob")
    @ApiOperation(value = "通过实体修改", notes = "通过实体修改")
    public Result
        updateQrtzJob(@ApiParam(name = "入参对象", value = "实体", required = false) @RequestBody QrtzJobVO qrtzJobVO) {
        Result resultVO = new Result();
        // 业务处理
        qrtzJobService.updateScheduleJob(qrtzJobVO);
        return resultVO;
    }
 
    
    @DeleteMapping("/deleteQrtzJob")
    @ApiOperation(value = "通过实体删除", notes = "通过实体删除")
    public Result
        deleteQrtzJob(@ApiParam(name = "入参对象", value = "实体", required = false) @RequestBody QrtzJobVO qrtzJobVO) {
        Result resultVO = new Result();
        // 业务处理
        qrtzJobService.deleteScheduleJob(qrtzJobVO);
        return resultVO;
    }
 
    
    @GetMapping("/runJob")
    public Result
        runJob(@ApiParam(name = "入参对象", value = "实体", required = false) @RequestBody List<QrtzJobVO> qrtzJobVO) {
        Result resultVO = new Result();
        // 业务处理
        qrtzJobService.run(qrtzJobVO);
        return resultVO;
    }
 
    
    @GetMapping("/pauseJob")
    public Result
        pauseJob(@ApiParam(name = "入参对象", value = "实体", required = false) @RequestBody List<QrtzJobVO> qrtzJobVO) {
        Result resultVO = new Result();
        // 业务处理
        qrtzJobService.pause(qrtzJobVO);
        return resultVO;
    }
 
    @GetMapping("resumeJob")
    public Result
        resumeJob(@ApiParam(name = "入参对象", value = "实体", required = false) @RequestBody List<QrtzJobVO> qrtzJobVO) {
        Result resultVO = new Result();
        // 业务处理
        qrtzJobService.resume(qrtzJobVO);
        return resultVO;
    }
 
}

4.运行配置

ScheduleUtils:将新添加的trigger，jobDetail放入scheduler中。

public class ScheduleUtils {
 
    private static final Logger log = LoggerFactory.getLogger(ScheduleUtils.class);
 
    private static final String JOB_NAME_PREFIX = "TASK_";
 
    private static TriggerKey getTriggerKey(Long jobId) {
        return TriggerKey.triggerKey("TASK_" + jobId);
    }
 
    private static JobKey getJobKey(Long jobId) {
        return JobKey.jobKey("TASK_" + jobId);
    }
 
    public static CronTrigger getCronTrigger(Scheduler scheduler, Long jobId) {
        try {
            return (CronTrigger)scheduler.getTrigger(getTriggerKey(jobId));
        } catch (SchedulerException e) {
            log.error("获取Cron表达式失败", e);
            return null;
        }
    }
 
    public static void createScheduleJob(Scheduler scheduler, QrtzJobVO scheduleJob) {
        try {
            JobDetail jobDetail = JobBuilder.newJob(com.job.util.ScheduleJob.class)
                .withIdentity(getJobKey(scheduleJob.getJobId())).build();
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCronExpression())
                .withMisfireHandlingInstructionDoNothing();
            CronTrigger trigger = (CronTrigger)TriggerBuilder.newTrigger()
                .withIdentity(getTriggerKey(scheduleJob.getJobId())).withSchedule(scheduleBuilder).build();
            jobDetail.getJobDataMap().put("JOB_PARAM_KEY", scheduleJob);
            scheduler.scheduleJob(jobDetail, trigger);
            if (scheduleJob.getStatus().equals(CommonConstant.QUARTZ_PAUSE)) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }
        } catch (SchedulerException e) {
            log.error("创建定时任务失败", e);
        }
    }
 
    public static void updateScheduleJob(Scheduler scheduler, QrtzJobVO scheduleJob) {
        try {
            TriggerKey triggerKey = getTriggerKey(scheduleJob.getJobId());
            CronScheduleBuilder scheduleBuilder = CronScheduleBuilder.cronSchedule(scheduleJob.getCronExpression())
                .withMisfireHandlingInstructionDoNothing();
            CronTrigger trigger = getCronTrigger(scheduler, scheduleJob.getJobId());
            if (trigger == null) {
                throw new SchedulerException("获取Cron表达式失败");
            }
            trigger =
                (CronTrigger)trigger.getTriggerBuilder().withIdentity(triggerKey).withSchedule(scheduleBuilder).build();
            trigger.getJobDataMap().put("JOB_PARAM_KEY", scheduleJob);
            scheduler.rescheduleJob(triggerKey, trigger);
            if (scheduleJob.getStatus().equals(CommonConstant.QUARTZ_PAUSE)) {
                pauseJob(scheduler, scheduleJob.getJobId());
            }
        } catch (SchedulerException e) {
            log.error("更新定时任务失败", e);
        }
    }
 
    public static void run(Scheduler scheduler, QrtzJobVO scheduleJob) {
        try {
            JobDataMap dataMap = new JobDataMap();
            dataMap.put("JOB_PARAM_KEY", scheduleJob);
            scheduler.triggerJob(getJobKey(scheduleJob.getJobId()), dataMap);
        } catch (SchedulerException e) {
            log.error("执行定时任务失败", e);
        }
    }
 
    public static void pauseJob(Scheduler scheduler, Long jobId) {
        try {
            scheduler.pauseJob(getJobKey(jobId));
        } catch (SchedulerException e) {
            log.error("暂停定时任务失败", e);
        }
    }
 
    public static void resumeJob(Scheduler scheduler, Long jobId) {
        try {
            scheduler.resumeJob(getJobKey(jobId));
        } catch (SchedulerException e) {
            log.error("恢复定时任务失败", e);
        }
    }
 
    public static void deleteScheduleJob(Scheduler scheduler, Long jobId) {
        try {
            scheduler.deleteJob(getJobKey(jobId));
        } catch (SchedulerException e) {
            log.error("删除定时任务失败", e);
        }
    }
}

5.ScheduleJob

用于执行定时任务。

public class ScheduleJob extends QuartzJobBean {
 
    private static final Logger log = LoggerFactory.getLogger(ScheduleJob.class);
 
    private ExecutorService service = Executors.newSingleThreadExecutor();
 
    @Override
    protected void executeInternal(JobExecutionContext context) {
        QrtzJobVO scheduleJob = (QrtzJobVO)context.getMergedJobDataMap().get("JOB_PARAM_KEY");
        QrtzJobLogService scheduleJobLogService = (QrtzJobLogService) SpringContextUtil.getBean(QrtzJobLogService.class);
        QrtzJobLogVO jobLog = new QrtzJobLogVO();
        jobLog.setJobId(scheduleJob.getJobId());
        jobLog.setBeanName(scheduleJob.getBeanName());
        jobLog.setMethodName(scheduleJob.getMethodName());
        if (CommonUtil.isEmpty(scheduleJob.getParams())) {
            jobLog.setParams("");
        } else {
            jobLog.setParams(scheduleJob.getParams());
        }
        long startTime = System.currentTimeMillis();
        try {
            log.info("任务准备执行，任务ID：{}", scheduleJob.getJobId());
            ScheduleRunnable task =
                new ScheduleRunnable(scheduleJob.getBeanName(), scheduleJob.getMethodName(), scheduleJob.getParams());
            Future<?> future = this.service.submit(task);
            future.get();
            long times = System.currentTimeMillis() - startTime;
            jobLog.setTimes(Long.valueOf(times));
            jobLog.setStatus("0");
            log.info("任务执行完毕，任务ID：{} 总共耗时：{} 毫秒", scheduleJob.getJobId(), Long.valueOf(times));
        } catch (Exception e) {
            log.error("任务执行失败，任务ID：" + scheduleJob.getJobId(), e);
            long times = System.currentTimeMillis() - startTime;
            jobLog.setTimes(Long.valueOf(times));
            jobLog.setStatus("1");
            jobLog.setError(StringUtils.substring(e.toString(), 0, 2000));
        } finally {
            scheduleJobLogService.insertQrtzJobLog(jobLog);
        }
    }
}

6.ScheduleRunnable

通过反射回去需要调用的类与方法。

public class ScheduleRunnable implements Runnable {
 
    private static final Logger log = LoggerFactory.getLogger(ScheduleRunnable.class);
 
    private Object target;
 
    private Method method;
 
    private String params;
 
    ScheduleRunnable(String beanName, String methodName, String params)
        throws NoSuchMethodException, SecurityException {
        this.target = SpringContextUtil.getBean(beanName);
        this.params = params;
        if (StringUtils.isNotBlank(params)) {
            this.method = this.target.getClass().getDeclaredMethod(methodName, new Class[] {String.class});
        } else {
            this.method = this.target.getClass().getDeclaredMethod(methodName, new Class[0]);
        }
    }
 
    @Override
    public void run() {
        try {
            ReflectionUtils.makeAccessible(this.method);
            if (StringUtils.isNotBlank(this.params)) {
                this.method.invoke(this.target, new Object[] {this.params});
            } else {
                this.method.invoke(this.target, new Object[0]);
            }
        } catch (Exception e) {
            log.error("执行定时任务失败", e);
        }
    }
}

5.使用

调用以上接口，参数如下。

"beanName":"任务类",
   "methodName":"任务方法",
   "params":"参数",
   "cronExpression":"表达式",

总结

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可视化定时任务quartz集成解析全过程

目录

前言