package com.coshaho.learn.spring;

import java.util.HashMap;

import java.util.Map;

import javax.annotation.PostConstruct;

import javax.annotation.PreDestroy;

import org.springframework.beans.MutablePropertyValues;

import org.springframework.beans.factory.BeanNameAware;

import org.springframework.beans.factory.DisposableBean;

import org.springframework.beans.factory.InitializingBean;

import org.springframework.beans.factory.annotation.AnnotatedGenericBeanDefinition;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.beans.factory.support.DefaultListableBeanFactory;

import org.springframework.context.annotation.ComponentScan;

import org.springframework.context.annotation.DependsOn;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import org.springframework.stereotype.Component;

/**

 *

 * ASpringProcessor.java Create on 2017年10月17日 下午10:06:35

 *

 * 类功能说明: Spring处理器执行顺序

 *

 * Copyright: Copyright(c) 2013

 * Company: COSHAHO

 * @Version 1.0

 * @Author coshaho

 */

@Component("springProcessor")

@DependsOn("dependsBean")

@ComponentScan("com.coshaho.learn.spring")

public class ASpringProcessor implements InitializingBean, DisposableBean, BeanNameAware

{

    @Autowired

    public BAutowiredBean autowiredBean;

    public ASpringProcessor()

    {

        System.out.println("SpringProcessor construct. x is " + x + ".");

    }

    // BeanNameAware

    public void setBeanName(String name)

    {

        System.out.println("Call BeanNameAware setBeanName, name is " + name + ", x is " + x + ".");

    }

    // DisposableBean

    public void destroy() throws Exception

    {

        System.out.println("Call DisposableBean destroy.");

    }

    // InitializingBean

    public void afterPropertiesSet() throws Exception

    {

        System.out.println("Call InitializingBean afterPropertiesSet.");

    }

    @PostConstruct

    public void postConstruct()

    {

        System.out.println("Call postConstruct method.");

    }

    @PreDestroy

    public void preDestroy()

    {

        System.out.println("Call preDestroy method.");

    }

    public void initMethod()

    {

        System.out.println("Call manually initMethod.");

    }

    public void destroyMethod()

    {

        System.out.println("Call manually destroyMethod.");

    }

    public void sayHello()

    {

        System.out.println("Hello, Spring.");

    }

    @Value("cauchy")

    private String x;

    public void setX(String x)

    {

        this.x = x;

    }

    public static void main(String[] args) throws Exception

    {

        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath:spring.xml");

        ASpringProcessor springBean = (ASpringProcessor)context.getBean("springProcessor");

        springBean.sayHello();

        context.close();

        System.out.println();

        // 创建一个BeanFactory

        DefaultListableBeanFactory factory = new DefaultListableBeanFactory();

        factory.addBeanPostProcessor(new EBeanPostProcessor());

        // 构造一个BeanDefinition

        AnnotatedGenericBeanDefinition beanDefinition=new AnnotatedGenericBeanDefinition(ASpringProcessor.class);

        beanDefinition.setInitMethodName("initMethod");

        beanDefinition.setDestroyMethodName("destroyMethod");

        // 设置这个bean的属性

        Map<String, Object> map = new HashMap<String, Object>();

        map.put("x", "coshaho");

        beanDefinition.setPropertyValues(new MutablePropertyValues(map));

        // 注册BeanDefinition

        factory.registerBeanDefinition("springProcessor", beanDefinition);

        // 执行获取和销毁bean的方法

        factory.getBean("springProcessor");

        factory.destroySingleton("springProcessor");

    }

}

package com.coshaho.learn.spring;

import org.springframework.beans.BeansException;

import org.springframework.beans.factory.config.BeanPostProcessor;

class EBeanPostProcessor implements BeanPostProcessor

{

    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException

    {

        System.out.println("MyBeanPostProcessor postProcessBeforeInitialization.");

        return bean;

    }

    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException

    {

        System.out.println("MyBeanPostProcessor postProcessAfterInitialization.");

        return bean;

    }

} 

package com.coshaho.learn.spring;

import org.springframework.stereotype.Service;

@Service

public class BAutowiredBean

{

    public BAutowiredBean()

    {

        System.out.println("AutowiredBean construct.");

    }

}

package com.coshaho.learn.spring;

import org.springframework.stereotype.Service;

@Service("dependsBean")

public class CDependsBean

{

    public CDependsBean()

    {

        System.out.println("DependsBean construct.");

    }

}

Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@7cef4e59: startup date [Tue Oct 17 18:18:23 GMT+08:00 2017]; root of context hierarchy

Loading XML bean definitions from class path resource [spring.xml]

DependsBean construct.

SpringProcessor construct. x is null.

AutowiredBean construct.

Call BeanNameAware setBeanName, name is springProcessor, x is cauchy.

Call postConstruct method.

Call InitializingBean afterPropertiesSet.

Hello, Spring.

Closing org.springframework.context.support.ClassPathXmlApplicationContext@7cef4e59: startup date [Tue Oct 17 18:18:23 GMT+08:00 2017]; root of context hierarchy

Call preDestroy method.

Call DisposableBean destroy.

SpringProcessor construct. x is null.

Call BeanNameAware setBeanName, name is springProcessor, x is coshaho.

MyBeanPostProcessor postProcessBeforeInitialization.

Call InitializingBean afterPropertiesSet.

Call manually initMethod.

MyBeanPostProcessor postProcessAfterInitialization.

Call DisposableBean destroy.

Call manually destroyMethod.