详解SpringBoot 发布ApplicationEventPublisher和监听ApplicationEvent事件

/**
 * 自定义保存事件
 * @author peter
 * 2019/1/27 14:59
 */
public class PersonSaveEvent<DATA> extends ApplicationEvent {
  private DATA data;

  public PersonSaveEvent(DATA source) {
    super(source);
    this.data = source;
  }

  public DATA getData() {
    return data;
  }
}

//发布事件
public void savePerson(Person person){
  personDao.save(person);
  publisher.publishEvent(new PersonSaveEvent<>(1));
}
//监听事件
@EventListener
public void listenEvent(PersonSaveEvent<Integer> event) {
   System.out.println("监听到PersonSaveEvent事件; 接收到的值：" + event.getData() + "；发布的时间为" + Instant.ofEpochMilli(event.getTimestamp()));
}

 * <p>If the event is not published within the boundaries of a managed transaction, the
 * event is discarded unless the {@link #fallbackExecution} flag is explicitly set. If a
 * transaction is running, the event is processed according to its {@code TransactionPhase}.

 @TransactionalEventListener(phase = TransactionPhase.AFTER_COMPLETION)
  public void listenEvent1(PersonSaveEvent<Integer> event) {
    divide(event);
  }
  @Transactional(propagation = Propagation.REQUIRES_NEW)
  public void divide(PersonSaveEvent<Integer> event) {
    System.out.println("监听到PersonSaveEvent事件; 接收到的值：" + event.getData() + "；接受的时间为" + Instant.ofEpochMilli(event.getTimestamp()));
  }

/**
 * @author peter
 * @version 1.0
 * @date 2019/04/18 08:47
 */
@Configuration
@EnableAsync
public class AsyncEventConfiguration implements AsyncConfigurer {
  @Override
  public Executor getAsyncExecutor() {
    return Executors.newCachedThreadPool();
  }
}