Spring初始化与销毁顺序案例演示详解

/*
    初始化和销毁的执行顺序
 */
@SpringBootApplication
public class A07_1 {
    public static void main(String[] args) {
        ConfigurableApplicationContext context = SpringApplication.run(A07_1.class, args);
        context.close();
    }
    @Bean(initMethod = "init3")
    public Bean1 bean1() {
        return new Bean1();
    }
    @Bean(destroyMethod = "destroy3")
    public Bean2 bean2() {
        return new Bean2();
    }
}

public class Bean1 implements InitializingBean {
    private static final Logger log = LoggerFactory.getLogger(Bean1.class);
    @PostConstruct
    public void init1() {
        log.debug("初始化1");
    }
    @Override
    public void afterPropertiesSet() throws Exception {
        log.debug("初始化2");
    }
    public void init3() {
        log.debug("初始化3");
    }
}

public class Bean2 implements DisposableBean {
    private static final Logger log = LoggerFactory.getLogger(Bean2.class);
    @PreDestroy
    public void destroy1() {
        log.debug("销毁1");
    }
    @Override
    public void destroy() throws Exception {
        log.debug("销毁2");
    }
    public void destroy3() {
        log.debug("销毁3");
    }
}