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java - Quartz 调度器执行一个 Runnable

问题描述

Quartz Scheduler 可以执行 Runnable 吗？

例如，我有以下代码由 spring 运行TaskScheduler：

[...]
@Autowired
@Qualifier(IntegrationConfiguration.TASK_SCHEDULER_INTEGRATION_NAME)
private TaskScheduler taskScheduler;

[...]
ScheduledFuture<?> scheduledFuture = taskScheduler.schedule(new Runnable() {

    @Override
    public void run() {
        try {
            execucaoJobService.executa(jobName, execucaoJobDto, jobScheduleId);
        } catch (JobExecutionException e) {
            LOG.error("Job Execution fails", e);
        }
    }
}, new CronTrigger(cronExpression));
[...]

我想用 Quartz 做上面的代码，我知道有 QuartzJobBean 类，但是这个只适用于静态代码，我需要传递 cronExpression 和其他参数动态。

标签： javaspring-bootquartz

解决方案

You could define a job that takes a Runnable via the JobDataMap, and run that on execution.

The job would look like this:

public final class RunnableJob implements Job {

    public static final String RUNNABLE_KEY = "RUNNABLE_KEY";

    public RunnableJob() {
        // Explicit constructor is required by Quartz.
    }

    @Override
    public void execute(JobExecutionContext jobExecutionContext) {
        final var runnable = (Runnable) jobExecutionContext.getJobDetail().getJobDataMap().get(RUNNABLE_KEY);
        runnable.run();
    }
}

Where you schedule your job it would look something like this:

        final var cronTrigger = TriggerBuilder.newTrigger()
            .withSchedule(CronScheduleBuilder.cronSchedule(cronExpression))
            .build();

        final var jobDetail = JobBuilder.newJob(RunnableJob.class)
            .setJobData(new JobDataMap(Map.of(RunnableJob.RUNNABLE_KEY,
                (Runnable) () -> {
                    // Do whatever you want to do
                })))
            .build();

        scheduler.scheduleJob(jobDetail, cronTrigger);

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