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#1.对spring源码进行测试，在spring-context模块中添加测试代码 spring-projects#2.对spring的bean生命周期进行调试，具体代码在spring-context模块中
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Diff for: ‎spring-context/src/main/java/com/debug/beanlifecycle/BeanFactoryPostProcessorTest.java

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package com.debug.beanlifecycle;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
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import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
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/**
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* @author: Shawn Chen
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* @date: 2018/6/6
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* @description:自定义BeanFactoryPostProcessor实现类
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*/
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public class BeanFactoryPostProcessorTest implements BeanFactoryPostProcessor
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{
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@Override
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public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException
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{
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System.out.println("1.调用BeanFactoryPostProcessor的postProcessBeanFactory()方法");
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System.out.println();
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System.out.println("1.postProcessBeanFactory()方法在工厂处理器后，ApplicationContext容器初始化中refresh()中调用");
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System.out.println();
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}
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}

Diff for: ‎spring-context/src/main/java/com/debug/beanlifecycle/BeanLifeCycle.java

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package com.debug.beanlifecycle;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.factory.*;
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import org.springframework.context.*;
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import org.springframework.core.env.Environment;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.ResourceLoader;
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import java.util.Arrays;
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/**
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* @author: Shawn Chen
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* @date: 2018/6/6
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* @description:测试主类
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*/
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public class BeanLifeCycle implements InitializingBean, DisposableBean, ApplicationContextAware, ApplicationEventPublisherAware, BeanClassLoaderAware, BeanFactoryAware, BeanNameAware, EnvironmentAware, ResourceLoaderAware
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{
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private String name;
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public String getName()
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{
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return name;
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}
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public void setName(String name)
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{
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System.out.println("6.setName(name),属性注入后调用,此时name=" + name);
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System.out.println();
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this.name = name;
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}
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public BeanLifeCycle()
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{
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System.out.println("3.调用BeanLifeCycle无参构造函数，进行实例化");
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System.out.println();
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}
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@Override
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public void afterPropertiesSet() throws Exception
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{
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//processBeforeInitialization(BeanPostProcessor)后调用
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System.out.println("11.调用InitializingBean的afterPropertiesSet()，processBeforeInitialization之后,配置的initMethod之前调用");
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System.out.println();
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}
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@Override
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public void destroy() throws Exception
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{
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System.out.println("16.执行DisposableBean接口的destroy方法");
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System.out.println();
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}
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/**
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* 通过<bean>的destroy-method属性指定的销毁方法
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*
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* @throws Exception
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*/
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public void destroyMethod() throws Exception
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{
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System.out.println("17.执行配置的destroy-method()方法");
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System.out.println();
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}
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/**
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* 通过<bean>的init-method属性指定的初始化方法
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*
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* @throws Exception
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*/
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public void initMethod() throws Exception
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{
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System.out.println("12.BeanLifyCycle执行配置的init-method()");
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System.out.println();
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}
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@Override
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public void setBeanClassLoader(ClassLoader classLoader)
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{
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System.out.println("执行setBeanClassLoader,ClassLoader Name = " + classLoader.getClass().getName());
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System.out.println();
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}
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@Override
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public void setBeanFactory(BeanFactory beanFactory) throws BeansException
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{
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//setBeanName 后调用
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System.out.println("8.调用BeanFactoryAware的setBeanFactory()方法，setBeanName后调用，BeanLifeCycle bean singleton=" + beanFactory.isSingleton("beanlifecycle"));
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System.out.println();
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}
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@Override
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public void setBeanName(String name)
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{
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System.out.println("7.调用BeanNameAware的setBeanName()方法，设置Bean名字:: Bean Name defined in context=" + name);
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System.out.println();
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}
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@Override
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public void setEnvironment(Environment environment)
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{
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System.out.println("执行setEnvironment");
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System.out.println();
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}
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@Override
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public void setResourceLoader(ResourceLoader resourceLoader)
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{
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Resource resource = resourceLoader.getResource("classpath:beanlifecycle.xml");
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System.out.println("执行setResourceLoader:: Resource File Name=" + resource.getFilename());
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System.out.println();
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}
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@Override
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public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher)
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{
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System.out.println("执行setApplicationEventPublisher");
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System.out.println();
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}
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@Override
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public void setApplicationContext(ApplicationContext applicationContext) throws BeansException
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{
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System.out.println("执行setApplicationContext:: Bean Definition Names=" + Arrays.toString(applicationContext.getBeanDefinitionNames()));
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System.out.println();
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}
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}

Diff for: ‎spring-context/src/main/java/com/debug/beanlifecycle/CustomerBeanPostProcessor.java

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package com.debug.beanlifecycle;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.factory.config.BeanPostProcessor;
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/**
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* @author: Shawn Chen
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* @date: 2018/6/6
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* @description:自定义BeanPostProcessor实现类
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*/
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public class CustomerBeanPostProcessor implements BeanPostProcessor
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{
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@Override
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public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException
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{
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System.out.println("9.调用BeanPostProcessor中的postProcessBeforeInitialization()方法, beanName= " + beanName);
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System.out.println();
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return bean;
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}
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@Override
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public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException
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{
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System.out.println("13.执行BeanPostProcessor的postProcessAfterInitialization()方法,beanName=" + beanName);
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System.out.println();
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return bean;
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}
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}

Diff for: ‎spring-context/src/main/java/com/debug/beanlifecycle/InstanceBeanPostProcessor.java

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package com.debug.beanlifecycle;
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import org.springframework.beans.BeansException;
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import org.springframework.beans.PropertyValues;
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import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessor;
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import java.beans.PropertyDescriptor;
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import java.util.Arrays;
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/**
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* @author: Shawn Chen
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* @date: 2018/6/6
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* @description:自定义InstantiationAwareBeanPostProcessor类
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*/
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public class InstanceBeanPostProcessor implements InstantiationAwareBeanPostProcessor
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{
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@Override
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public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException
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{
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System.out.println("10.调用InstantiationAwareBeanPostProcessor中的postProcessBeforeInitialization()方法, beanName = " + beanName);
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System.out.println();
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return bean;
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}
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@Override
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public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException
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{
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System.out.println("14.执行InstantiationAwareBeanPostProcessor的postProcessAfterInitialization()方法");
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System.out.println();
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return bean;
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}
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@Override
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public boolean postProcessAfterInstantiation(Object bean, String beanName) throws BeansException
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{
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System.out.println("4.调用InstantiationAwareBeanPostProcessor中的postProcessAfterInstantiation()方法");
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System.out.println();
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System.out.println("4.返回boolean,bean实例化后调用,并且返回false则不会注入属性,beanName" + beanName);
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System.out.println();
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return true;
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}
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@Override
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public Object postProcessBeforeInstantiation(Class<?> beanClass, String beanName) throws BeansException
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{
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System.out.println("2.调用InstantiationAwareBeanPostProcessor中的postProcessBeforeInstantiation()方法");
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System.out.println();
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System.out.println("2.实例化bean之前调用,即调用bean类构造函数之前调用 " + beanClass.getName());
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System.out.println();
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return null;
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}
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@Override
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public PropertyValues postProcessPropertyValues(PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException
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{
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System.out.println("5.调用InstantiationAwareBeanPostProcessor中的postProcessPropertyValues()方法");
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System.out.println();
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System.out.println("5.postProcessPropertyValues,在属性注入之前调用...... beanName = " + beanName + " 属性名集合 : " + Arrays.toString(pvs.getPropertyValues()));
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System.out.println();
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System.out.println("这里Bean的name属性还是null：" + ((BeanLifeCycle) bean).getName()); //这里可以看到nam的值
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System.out.println();
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return pvs;//这里要返回propertyValues,否则属性无法注入
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}
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}

Diff for: ‎spring-context/src/main/java/com/debug/spring/User.java

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package com.debug.spring;
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/**
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* @author: Shawn Chen
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* @date: 2018/6/6
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* @description:
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*/
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//@Component
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public class User
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{
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//@Value(value = "github")
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private String name;
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// @Value(value = "male")
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private String gender;
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public String getName()
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{
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return name;
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}
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public void setName(String name)
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{
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this.name = name;
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}
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public String getGender()
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{
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return gender;
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}
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public void setGender(String gender)
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{
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this.gender = gender;
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}
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}

Diff for: ‎spring-context/src/main/resources/com/debug/config/User.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:p="http://www.springframework.org/schema/p"
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xmlns:context="http://www.springframework.org/schema/context"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context-4.0.xsd">
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<bean id="user" class="com.debug.spring.User"
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p:name="测试" p:gender="保密"/>
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<!-- <context:component-scan base-package="com.debug.spring"/>-->
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</beans>

Diff for: ‎spring-context/src/main/resources/com/debug/config/beanlifecycle.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:context="http://www.springframework.org/schema/context"
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xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
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<bean id="beanlifecycle" class="com.debug.beanlifecycle.BeanLifeCycle" init-method="initMethod"
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destroy-method="destroyMethod">
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<property name="name" value="小测"></property>
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</bean>
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<bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/>
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<bean class="com.debug.beanlifecycle.CustomerBeanPostProcessor"/>
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<bean class="com.debug.beanlifecycle.BeanFactoryPostProcessorTest"/>
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<bean class="com.debug.beanlifecycle.InstanceBeanPostProcessor"/>
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</beans>

Diff for: ‎spring-context/src/main/resources/com/debug/config/beanlifecycle_annotation.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:context="http://www.springframework.org/schema/context"
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xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
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<context:component-scan base-package="com.debug.beanlifecycle"/>
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</beans>

Diff for: ‎spring-context/src/test/java/com/debug/beanlifecycletest/LifeCycleTest.java

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package com.debug.beanlifecycletest;
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import com.debug.beanlifecycle.BeanLifeCycle;
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import org.junit.Test;
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import org.springframework.context.ApplicationContext;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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/**
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* @author: Shawn Chen
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* @date: 2018/6/6
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* @description:
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*/
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public class LifeCycleTest
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{
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@Test
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public void testBeanLifeCycle()
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{
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System.out.println("Bean生命周期：");
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System.out.println("Spring容器初始化");
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System.out.println("=====================================");
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ApplicationContext context = new ClassPathXmlApplicationContext("com/debug/config/beanlifecycle.xml");
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System.out.println("Spring容器初始化完毕");
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System.out.println("=====================================");
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System.out.println("从容器中获取Bean");
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System.out.println();
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BeanLifeCycle beanLifeCycle = (BeanLifeCycle) context.getBean("beanlifecycle");
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System.out.println("15.初始化成功，并且属性注入成功：beanLifyCycle Name=" + beanLifeCycle.getName());
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System.out.println("=====================================");
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((ClassPathXmlApplicationContext) context).close();
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System.out.println("=====================================");
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System.out.println("Spring容器关闭，Bean生命周期结束！");
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}
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}

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