八、【生命周期】接口InitializingBean和DisposableBean

Bean实现接口InitializingBean和DisposableBean

/**
 * @author zhangjianbing
 * @since 2020/9/22
 */
public class BlueYes implements InitializingBean, DisposableBean {

    public BlueYes() {
        System.out.println("BlueYes...Constructor...");
    }

    @Override
    public void destroy() throws Exception {
        System.out.println("BlueYes...destroy...");
    }

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

}

配置类

@Configuration
public class PersonConfig {

    @Bean
    public BlueYes blueYes () {
        return new BlueYes();
    }

}

Bean在初始化和容器关闭的时候会回调接口方法。