HibernateIocLab--Bean后处理

package org.niit.springioc.example3;import org.springframework.beans.BeansException;import org.springframework.beans.factory.config.BeanPostProcessor;public class BeanPost implements BeanPostProcessor {public Object postProcessBeforeInitialization(Object arg0, String arg1)throws BeansException {// TODO Auto-generated method stubif (arg0 instanceof Cat){System.out.println("call postProcessBeforeInitialization...in Class Cat");}else if (arg0 instanceof Girl){System.out.println("call postProcessBeforeInitialization...in Class Girl");}return arg0;}public Object postProcessAfterInitialization(Object arg0, String arg1)throws BeansException {// TODO Auto-generated method stubSystem.out.println("call postProcessAfterInitialization...");return arg0;}}

 

package org.niit.springioc.example3;import org.springframework.beans.BeansException;import org.springframework.beans.factory.config.BeanFactoryPostProcessor;import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;public class BeanFactoryPost implements BeanFactoryPostProcessor {public void postProcessBeanFactory(ConfigurableListableBeanFactory arg0)throws BeansException {// TODO Auto-generated method stubSystem.out.println("现在共有:"+arg0.getBeanDefinitionCount()+"个bean对象被spring构造");}}

 

配置文件:

 

<?xml version="1.0" encoding="UTF-8"?><beansxmlns="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-2.0.xsd"><!-- 本实例演示：集合的注入 --><bean class="org.niit.springioc.example3.Girl" name="girl" scope="singleton" init-method="initilize" destroy-method="destroy"><property name="name" value="玛丽"></property><property name="catList"><list><ref bean="cat1"/><ref bean="cat2"/></list></property><property name="catSet"><set><ref bean="cat1"/><ref bean="cat2"/></set></property><property name="catMap"><map><entry key="cat1" value-ref="cat1"></entry><entry key="cat2" value-ref="cat2"></entry></map></property></bean><bean class="org.niit.springioc.example3.Cat" name="cat1"><property name="id" value="smalltiger1"></property><property name="color" value="white"></property></bean><bean class="org.niit.springioc.example3.Cat" name="cat2"><constructor-arg index="0" value="smalltigger2"></constructor-arg><constructor-arg index="1" value="black"></constructor-arg></bean><bean class="org.niit.springioc.example3.BeanFactoryPost"></bean><bean class="org.niit.springioc.example3.BeanPost"></bean></beans>

 

测试代码:

package org.niit.springioc.example3;import org.springframework.beans.factory.BeanFactory;import org.springframework.beans.factory.xml.XmlBeanFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.AbstractApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.core.io.ClassPathResource;import org.springframework.core.io.Resource;public class Client1 {private static BeanFactory bf = null;private static ApplicationContext appCxt = null;private static ApplicationContext getAppCxt(){if (appCxt==null){/*实例化ApplicationContext接口对象的多种方式*///appCxt = new FileSystemXmlApplicationContext("c://applicationContext.xml");appCxt=new ClassPathXmlApplicationContext("org/niit/springioc/example3/applicationContext.xml");;}return appCxt;}private static BeanFactory getBeanFactory(){if (bf==null){Resource res = new ClassPathResource("org/niit/springioc/example3/applicationContext.xml");bf = new XmlBeanFactory(res);}return bf;}/** * @param args *///public static void main(String[] args) {//// TODO Auto-generated method stub//Client1 c =new Client1();//appCxt = c.getAppCxt();//Girl girl = (Girl)appCxt.getBean("girl");//////测试Set////System.out.println(girl.getName()+"有"+girl.getCatSet().size()+"只猫");////for (Cat cat : girl.getCatSet()) {////cat.action();////}//////测试Map//System.out.println(girl.getName()+"有"+girl.getCatMap().size()+"只猫");//for (String key : girl.getCatMap().keySet()) {//girl.getCatMap().get(key).action();//}////((AbstractApplicationContext)appCxt).close();//一般只有Servlet容器或者EJB容器才会执行该方法//}public static void main(String[] args) {//scope="singleton"表示容器始终提供同一个bean对象,多次getBean返回的是同一个BeanClient1 c = new Client1();Girl g1 = (Girl)c.getAppCxt().getBean("girl");Girl g2 = (Girl)c.getAppCxt().getBean("girl");}}