【Spring Boot实战与进阶】自定义事件及监听

2、定义事件监听器

public class MyApplicationListener implements ApplicationListener {

@Override

public void onApplicationEvent(MyApplicationEvent event) {

System.out.println(“接受到了事件:”+event.getClass());

System.out.println(“接受到了事件:”+event.getSource());

}

}

3、使用容器中发布事件

@SpringBootApplication

public class EventDemoApplication {

public static void main(String[] args) {

SpringApplication app = new SpringApplication(EventDemoApplication.class);

//1 添加监听事件

app.addListeners(new MyApplicationListener());

ConfigurableApplicationContext context = app.run(args);

// 发布事件

context.publishEvent(new MyApplicationEvent(new Object()));

context.close();

}

}

控制台输出：

接受到了事件:class com.boot.event.eventdemo.MyApplicatio