Spring source analysis of timed tasks scheduled annotations

1. @Scheduled can identify a method to be timed for execution. However, you must specify Cron (), Fixeddelay (), or fixedrate () property.

The annotation method must be without an input parameter and return an empty type void.

@Scheduled annotations are handled by the registered Scheduledannotationbeanpostprocessor, the processor can be registered by hand, and more in the way through <task: Annotation-driven/> or @enablescheduling to register.

Spring source analysis of timed tasks scheduled annotations