使用Spring事件机制实现异步的方法

@Data
public class MyEvent extends ApplicationEvent {
  private String msg;

  public MyEvent(Object source, String msg) {
    super(source);
    this.msg = msg;
  }
}

public class MyListener implements ApplicationListener<MyEvent> { 

  @Override 
  public void onApplicationEvent(MyEvent event) { 
    System.out.print("监听到MyEvent事件"); 
  } 
} 
...
// SpringBoot的启动类中添加监听器
    public static void main(String[] args) {
    SpringApplication application = new SpringApplication(MyApplication.class);
    application.addListeners(new MyListener());
    application.run(args);
  }

@Component
@Slf4j
public class MyEventHandler {

  @EventListener
  public void handleEvent(MyEvent event) {
    log.info("------------处理事件：{}", event.getMsg());
    try {
      Thread.sleep(5 * 1000L);
      log.info("事件1(5s)处理完成");
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }

}

@Component
@Slf4j
public class EventService implements ApplicationEventPublisherAware {
  public ApplicationEventPublisher publisher;

  @Override
  public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
    this.publisher = applicationEventPublisher;
  }

  public String doEventWork(String msg) {
    log.info("------------publish event:" + msg);
    MyEvent event = new MyEvent(this, msg);
    publisher.publishEvent(event);
    return "OK";
  }
}

@SpringBootTest
@RunWith(SpringRunner.class)
public class EventServiceTest {
  @Autowired
  private EventService service;

  @Test
  public void eventTest() {
    String msg="Java Code";
    service.doEventWork(msg);
  }
}

// MyEvent2 extends MyEvent

@Component
@Slf4j
public class MyEventHandler {

  @EventListener
  public void handleEvent(MyEvent event) {
    log.info("------------处理事件：{}", event.getMsg());
    try {
      Thread.sleep(5 * 1000L);
      log.info("事件1(5s)处理完成");
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }

  @EventListener
  public void handleEvent2(MyEvent2 event) {
    log.info("------------处理事件2：{}", event.getMsg());
    try {
      Thread.sleep(10 * 1000L);
      log.info("事件2(10s)处理完成");
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }
}