成都网站建设设计

将想法与焦点和您一起共享

springbean生命周期事件

整体流程图

目前创新互联公司已为近千家的企业提供了网站建设、域名、网页空间、网站托管、企业网站设计、龙湖网站维护等服务,公司将坚持客户导向、应用为本的策略,正道将秉承"和谐、参与、激情"的文化,与客户和合作伙伴齐心协力一起成长,共同发展。

spring bean 生命周期事件

程序示例

maven依赖


    
    
        org.springframework
        spring-context
        4.3.12.RELEASE
    

    
        junit
        junit
        4.12
        test
    

配置类

@Configuration
@ComponentScan("per.ym.processor, per.ym.service")
public class LifeCycleConfig {

    @Bean(initMethod = "init", destroyMethod = "destroy")
    public LifeCycleBean lifeCycleBean() {
        return new LifeCycleBean();
    }
}

实例bean

public class LifeCycleBean implements InitializingBean, BeanNameAware, BeanFactoryAware, BeanClassLoaderAware {

    public LifeCycleBean() {
        System.out.println("consturctor......");
    }

    public void init() {
        System.out.println("init......");
    }

    @Autowired
    public void setService(PersonService service) {
        System.out.println("setService......");
    }

    public void destroy() {
        System.out.println("destroy......");
    }

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

    @Override
    public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
        System.out.println("setBeanFactory......");
    }

    @Override
    public void setBeanName(String name) {
        System.out.println("setBeanName......");
    }

    @Override
    public void setBeanClassLoader(ClassLoader classLoader) {
        System.out.println("setBeanClassLoader......");
    }

}

InstantiationAwareBeanPostProcessor

package per.ym.processor;

@Component
public class MyInstantiationBeanPostProcessor extends InstantiationAwareBeanPostProcessorAdapter {

    @Override
    public Object postProcessBeforeInstantiation(Class beanClass, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            System.out.println("postProcessBeforeInstantiation......");
        }
        return null;
    }

    @Override
    public boolean postProcessAfterInstantiation(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            System.out.println("postProcessAfterInstantiation......");
        }
        return true;
    }

    @Override
    public PropertyValues postProcessPropertyValues(
            PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            System.out.println("postProcessPropertyValues......");
        }
        return pvs;
    }

}

BeanPostProcessor

package per.ym.processor;

@Component
public class MyPostProcess implements BeanPostProcessor {

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            System.out.println("postProcessBeforeInitialization......");
        }
        return bean;
    }

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean")) {
            System.out.println("postProcessAfterInitialization......");
        }
        return bean;
    }

}

service

package per.ym.service;

@Service
public class Service {
}

测试类

public class Test_Normal {

AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(LifeCycleConfig.class);

    @Test
    public void test() {
        applicationContext.getBean("lifeCycleBean");
        applicationContext.close();
    }
}

测试结果:

postProcessBeforeInstantiation......
consturctor......
postProcessAfterInstantiation......
postProcessPropertyValues......
setService......
setBeanName......
setBeanClassLoader......
setBeanFactory......
postProcessBeforeInitialization......
afterPropertiesSet......
init......
postProcessAfterInitialization......
destroy......

名称栏目:springbean生命周期事件
链接URL:http://chengdu.cdxwcx.cn/article/iiegph.html