Using Scheduled Tasks in Springboot

It @Scheduled is very simple to use in springboot, just add comments on the method @Scheduled .

import org.springframework.scheduling.annotation.Scheduled;import org.springframework.stereotype.Component;import org.springframework.transaction.annotation.Transactional;@Componentpublicclass XXXTask {    @Scheduled601000)    @Transactional    publicvoidrun() {        // 省略部分代码    }}

 Public @interfaceScheduled {StringCron()default "";//Cron expressionStringZone()default "";//Time zone    Long Fixeddelay()default-1l;after the last execution, wait for the number of milliseconds to executeStringfixeddelaystring()default "";Long fixedrate()default-1l;after the last start of execution, wait for the number of milliseconds to executeStringfixedratestring()default "";Long InitialDelay()default-1l;//Wait for the first number of milliseconds to execute after the project starts successfullyStringinitialdelaystring()default "";}

fixedDelayString fixedRateString initialDelayStringBack add StringThe meaning

SOURCE Location:org/springframework/spring-context/5.0.5.RELEASE/spring-context-5.0.5.RELEASE.jar!/org/springframework/scheduling/annotation/ScheduledAnnotationBeanPostProcessor.class:240

private static long parseDelayAsLong(String value) throws RuntimeException {    return value.length() <= 1 || !isP(value.charAt(0)) && !isP(value.charAt(1)) ? Long.parseLong(value) : Duration.parse(value).toMillis();}private static boolean isP(char ch) {    return ch == ‘P‘ || ch == ‘p‘;}

Using Scheduled Tasks in Springboot