springboot监听器
作者:互联网
首先创建类,定义一个事件,继承ApplicationEvent类实现方法
/**
* 定义一个事件
*/
public class MsgEvent extends ApplicationEvent {
public MsgEvent(Object source) {
super(source);
}
}
定义一个监听者,实现接口ApplicationListener,实现方法,传入MsgEvent这个事件
1 @Component 2 public class EmailListener implements ApplicationListener<MsgEvent> { 3 @Override 4 public void onApplicationEvent(MsgEvent event) { 5 String source = (String) event.getSource(); 6 System.out.println(source + "已经收到您的订单"); 7 } 8 }
Controller层实现ApplicationContextAware接口
@RestController public class UserController implements ApplicationContextAware { private ApplicationContext aware; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { this.aware = applicationContext; } @GetMapping("/hello") public String api(){ aware.publishEvent(new MsgEvent("下单了")); return "下单成功"; } }
标签:MsgEvent,springboot,class,aware,source,监听器,public,String 来源: https://www.cnblogs.com/qiaojavaxiaobai/p/16484598.html