CommandLineRunner與ApplicationListener

作用：

　　spring所有Bean生成之后，加載一些數據和執行一些應用的初始化

使用

@Order(value = 1)　　// 多個實現時定義執行順序
@Component
public class ApplicationInit implements CommandLineRunner, ApplicationListener<ApplicationEvent> {
    private static Log logger = LogFactory.getLog(ApplicationInit.class);
    @Autowired
    private ActiveMQTask activeMQTask;
    private boolean openCVLoad;
    public static String openCVXmlPath;
    @Autowired
    private JmsConsumerTask jmsConsumerTask;
    @Autowired
    private DefaultMessageListener messageListener;

    @Override
    public void run(String... args) {
        System.out.println("------------------------ Spring初始化完畢 ------------------------");
        logger.error("---" + Arrays.toString(args) + "---");
        this.applicationStarted();　　//spring啟動后執行的自定義任務：開啟activityMQ隊列
    }

    @Override
    public void onApplicationEvent(ApplicationEvent event) {
        if (logger.isDebugEnabled()) {
            logger.debug("event:" + event.getClass().getName());
        }
    }

    private void applicationStarted() {
        System.out.println("> 啟動ActiveMQ[啟動服務]");
        activeMQTask.start();
    }
private void appStop() {
        logger.error("----------------------------Tomcat開始運行關閉----------------------------");
    }

　推薦：CommandLineRunner　https://blog.csdn.net/lk142500/article/details/90270592

　　　   ApplicationListener　      https://blog.csdn.net/liyantianmin/article/details/81017960