springboot及bean 初始化运行

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spring boot 启动时运行

Spring Boot应用程序在启动后，会遍历CommandLineRunner接口的实例并运行它们的run方法。也可以利用@Order注解（或者实现Order接口）来规定所有CommandLineRunner实例的运行顺序。

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@Order(10)
@Component
public class ContractUsegeStatusInitRunner implements CommandLineRunner {
    private static Logger logger= LoggerFactory.getLogger(ContractUsegeStatusInitRunner.class);
    @Autowired
    private ScheduleService scheduleService;

    @Override
    public void run(String... strings) throws Exception {
        logger.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>启动时合同使用状态更新");
        scheduleService.updateContractUsegeStatus();
        logger.info(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>合同使用状态更新结束");
    }

Bean 初始化完成时运行

执行顺序　Constructor > @PostConstruct > InitializingBean > init-method

<beanclass=”InitSequenceBean”init-method=”initMethod”>

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public class InitSequenceBean implements InitializingBean {

    public InitSequenceBean() {
       System.out.println("InitSequenceBean: constructor");
    }

    @PostConstruct
    public void postConstruct() {
       System.out.println("InitSequenceBean: postConstruct");
    }

    public void initMethod() {
       System.out.println("InitSequenceBean: init-method");
    }

    @Override
    public void afterPropertiesSet() throws Exception {
       System.out.println("InitSequenceBean: afterPropertiesSet");
    }
}

Bean销毁之前执行

使用@PreDestroy