Inject @Scheduled fixedRate value from Spring Boot application.yml file

Question

I know I can inject the value from properties file with the following syntax:

@Scheduled(fixedRate=${myRate})
public void getSchedule(){
    System.out.print         


        

Answer 1

In my application I use the annotation PropertySource on my config class:

@PropertySource("application-${spring.profiles.active}.yml")

spring.profiles.active returns the active profile (dev, test, etc). My properties file name is application-dev.yml

The annotation @Scheduled works with property injection. Dont forget the annotation with prefix configuration on your class.

Answer 2

In my application.properties (YAML) I put this

console:
    fetchMetrics: 5000

Then in my simple Task class I push the definition :

@Scheduled(fixedRateString ="${console.fetchMetrics}", initialDelay=1000)
public void fetchMetrics() {
    logger.info("What's up ?");
}

Please notice that fixedRate expects a long and you want to inject a placeholder, you will need fixedRateString

Answer 3

I find it easy once done for my project.
Change fixedRate to fixedRateString and put the property key in double quotes like this:

@Scheduled(fixedRateString="${myRate}")
public void getSchedule() {
    System.out.println("Scheduled job");
}