spring boot 系统启动成功事件和失败事件监听

spring boot 系统启动事件和失败事件监听

监听spring boot 服务的启动与失败,在服务启动后可能需要处理一些的业务

github代码链接 service-common 模块中

  1. 服务启动成功事件
@Component
public class ApplicationReadyEventListener implements ApplicationListener<ApplicationReadyEvent> {
    private static Logger logger = LoggerFactory.getLogger(ApplicationReadyEventListener.class);

    @Override
    public void onApplicationEvent(ApplicationReadyEvent event) {
        EventUtil.dispatcher(IStartupEvent.class);
    }
}

2.服务启动失败事件

@Component
public class ApplicationFailedEventListener implements ApplicationListener<ApplicationFailedEvent> {
    private static Logger logger = LoggerFactory.getLogger(ApplicationFailedEventListener.class);
    @Override
    public void onApplicationEvent(ApplicationFailedEvent event) {
        logger.info("系统启动失败......");
    }
}

3.事件分发机制
通过继承IEvent 实现事件的分发处理,更加简洁的处理一些业务的中操作,比如日志等,将代码的更好的解耦

(1)创建启动事件接口 继承IEvent

public interface IStartupEvent extends IEvent{
}

(2)实现IStartupEvent 接口,execute 执行对应方法

@Component
public class SyetemStartupEventImpl implements IStartupEvent {
    private static Logger logger = LoggerFactory.getLogger(SyetemStartupEventImpl.class);
    @Override
    public int order() {
        return 0;
    }

    @Override
    public void execute(Object... objects) {
        logger.info("服务启动成功。。。。。。");

    }
}

(3)使用方式,会找到对应实现类

EventUtil.dispatcher(IStartupEvent.class);
    原文作者:Spring Boot
    原文地址: https://blog.csdn.net/u010176542/article/details/80766953
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