STM32知识合集

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:c="http://www.springframework.org/schema/c"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
  https://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="tju" class="cn.edu.tju.domain.MyInitObject">

    </bean>

    <bean id="fgh" class="cn.edu.tju.domain.MyPostProcessObject">

    </bean>

</beans>

package cn.edu.tju;

import cn.edu.tju.domain.MyInitObject;
import cn.edu.tju.domain.MyPostProcessObject;
import cn.edu.tju.domain.Student;
import org.springframework.beans.factory.support.BeanDefinitionReader;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import java.util.concurrent.locks.ReentrantLock;

public class Start16 {
    public static void main(String[] args) {
        Resource resource = new ClassPathResource("beans13.xml");
        DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
        BeanDefinitionReader beanDefinitionReader = new XmlBeanDefinitionReader(factory);
        beanDefinitionReader.loadBeanDefinitions(resource);

        //ApplicationContext factory = new ClassPathXmlApplicationContext("beans13.xml");

        MyInitObject student = factory.getBean("tju", MyInitObject.class);



    }
}

这样写BeanPostProcessor的代码不执行。换成ApplicationContext的写法就可以。debug发现：用DefaultListableBeanFactory时，

	public List<BeanPostProcessor> getBeanPostProcessors() {
		return this.beanPostProcessors;
	}

这个方法返回的list 的size为0