如何在春季通过个人资料启用@Scheduled 工作？

Question

How could I enabled scheduled jobs only in specific profiles?

pseudocode:

@Scheduled(cron = "${job.cron}")
@Profile("prod")
public void runJob() {

}

Is that possible?

Answer 1

You should have one bean per profile:

@Component
@Profile("prod")
public class ProdJob {

    @Scheduled(cron = "${job.cron}")
    public void runJob() {

    }

}

@Component
@Profile("beta")
public class BetaJob {

    @Scheduled(cron = "${job.cron}")
    public void runJob() {

    }
}

Answer 2

You can do it using following approach. Almost as you already did, but add colon and then the default value that should be picked if property not found. Here we use '-' as cron disable expression:

@Scheduled(cron = "${job.cron:-}")
public void runJob() {

}

Then define cron expression in desired profile (for example using properties file).

Here is the application-prod.properties content:

job.cron=*/30 * * * * *

Here for prod profile it will be launched every 30 seconds and for all others it is turned off.

Answer 3

I use spring boot version 2.3.7 and the solution to this problem is equal to the pseudocode you provided. You inspired their team :-).

// Enable sceduling
@Configuration
@EnableScheduling
public class SchedulerConfig implements SchedulingConfigurer {

    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
        ThreadPoolTaskScheduler threadPoolTaskScheduler = new ThreadPoolTaskScheduler();

        threadPoolTaskScheduler.setPoolSize(5);
        threadPoolTaskScheduler.setThreadNamePrefix("my.main.package-Scheduler-");
        threadPoolTaskScheduler.initialize();

        scheduledTaskRegistrar.setTaskScheduler(threadPoolTaskScheduler);
    }
}

// A scheduled job that runs only when profile "prod" is enabled
@Component
@Profile("prod")
@NoArgsConstructor
class ExpirationNotificationScheduler {

    // Just for test, run each 10th second or each minute
    @Scheduled(cron = "10 * * * * *") // second, minute, hour, day of month, month, day(s) of week
    public void notifyExpiredAccounts() {
        System.out.println("Yes, I am a scheduled job.");
    }
}