How to access Cron expression from application.properties file-CodePudding

this is my job schedule part
and  i want to remove the cron trigger, CronTrigger("0 40 13 * * ?") then access the cron expression from application.property.

@Component public class DynamicjobSchedule {

public void schedulejobs() {

    for (ConnectionStrings obj : listObj) {
        System.out.println("Cron Trigger Starting..");
        scheduler.schedule(new DashboardTask(obj), new CronTrigger("0 40 13 * * ?"));
    }
}

}

how can i create one property file in src/main.resources location and mention the cron expression then call from the scheduler

CodePudding user response：

The simplest way is to use @Value annotation like this:

@Component
public class DynamicjobSchedule {

    @Value("${name.of.cron.expression.in.application.properties}")
    private String cronExpression;

    public void schedulejobs() {

        for (ConnectionStrings obj : listObj) {
            System.out.println("Cron Trigger Starting..");
            scheduler.schedule(new DashboardTask(obj), new CronTrigger(cronExpression));
        }
    }
}

You can use the @Value annotation on method parameter too:

@Component
public class DynamicjobSchedule {

    public void schedulejobs(@Value("${name.of.cron.expression.in.application.properties}") String cronExpression) {

        for (ConnectionStrings obj : listObj) {
            System.out.println("Cron Trigger Starting..");
            scheduler.schedule(new DashboardTask(obj), new CronTrigger(cronExpression));
        }
    }
}