Spring学习笔记--Bean的生命周期

Bean的生命周期

JavaBean类

package chapter1.beanlifecycle;

import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

public class Person implements BeanFactoryAware,ApplicationContextAware,
                                InitializingBean,BeanPostProcessor,DisposableBean{
    private String name;
    private String phone;

    private BeanFactory beanFactory;
    private String beanName;
    private ApplicationContext applicationContext;
    /**
     * default constructor
     */
    public Person() {

    }

    public String getName() {
        return name;
    }


    public void setName(String name) {
        this.name = name;
    }


    public String getPhone() {
        return phone;
    }


    public void setPhone(String phone) {
        this.phone = phone;
    }


    @Override
    public void setBeanFactory(BeanFactory arg0) throws BeansException {
        System.out.println("Spring call the setBeanFactory to transfer the Instance of BeanFactory");
        this.beanFactory = arg0;
    }


    @Override
    public void setApplicationContext(ApplicationContext arg0) throws BeansException {
        System.out.println("Spring call the setApplicationContext to transfer the ApplicationContext");
        this.applicationContext = arg0;
    }


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


    @Override
    public void destroy() throws Exception {
        System.out.println("Spring call the destory() to call the destory-method of Person bean");
    }

    public void selfDefineDestory() {
        System.out.println("Spring call the destory-method by self definition");
    }

    public void selfDefineInit() {
        System.out.println("Spring call the initialize-method by self definition");
    }
}

配置文件

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="
            http://www.springframework.org/schema/beans 
            http://www.springframework.org/schema/beans/spring-beans-3.2.xsd">

    <bean id="person" class="chapter1.beanlifecycle.Person"  scope="singleton" 
    p:name="Zhang San" p:phone="15900000000" 
    init-method="selfDefineInit" destroy-method="selfDefineDestory"/> 
</beans>

输出结果

信息: Loading XML bean definitions from class path resource [beanlifecycle.xml]
Spring call the setBeanFactory to transfer the Instance of BeanFactory
Spring call the setApplicationContext to transfer the ApplicationContext
Spring call the afterPropertiesSet()
Spring call the initialize-method by self definition
容器初始化成功
chapter1.beanlifecycle.Person@3ecd23d9
现在开始关闭容器！
五月 12, 2018 10:37:44 下午 org.springframework.context.support.AbstractApplicationContext doClose
信息: Closing org.springframework.context.support.ClassPathXmlApplicationContext@270421f5: startup date [Sat May 12 22:37:44 CST 2018]; root of context hierarchy
Spring call the destory() to call the destory-method of Person bean
Spring call the destory-method by self definition

<4>参考文献

[1] http://www.cnblogs.com/zrtqsk/p/3735273.html
[2]《Spring in Action》chapter1-bean的生命周期