Springboot 配置监听器，默认启动

SpringBoot

实现接口即可

import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.stereotype.Component;
@Component
public class ApplicationStartup implements ApplicationListener<ApplicationReadyEvent> {
    @Override
    public void onApplicationEvent(ApplicationReadyEvent arg0) {
        System.out.println("默认启动执行...");
    }
}