SpringBoot-事件

SpringBoot事件demo
发布方

@Service
public class UserServiceImpl implements UserService, ApplicationContextAware {

    private Logger logger= LoggerFactory.getLogger(UserServiceImpl.class);


    private ApplicationEventPublisher applicationEventPublisher;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationEventPublisher=applicationContext;
    }

    @Override
    public void test(String userName){
        logger.info("---------执行逻辑---{}-------------",userName);
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    Thread.sleep(3000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                applicationEventPublisher.publishEvent(new UserRegisterEvent(this,userName));
            }
        }).start();
    }
}

订阅方

@Service
public class EmailService implements ApplicationListener{

    private Logger logger=LoggerFactory.getLogger(EmailService.class);

    @Override
    public void onApplicationEvent(UserRegisterEvent event) {
        logger.info("发送邮件{}",event.getUserName());
    }
}

事件类型定义

public class UserRegisterEvent extends ApplicationEvent {

    private String userName;

    public UserRegisterEvent(Object source, String userName) {
        super(source);
        this.userName = userName;
    }

    public String getUserName() {
        return userName;
    }
}

参考https://www.iocoder.cn/Spring-Boot/Event/?qun