BeanFactory的对象注册与依赖绑定方式

public static void main(String[] args)

{

  DefaultListableBeanFactory beanRegistry=new DefaultListableBeanFactory();

  BeanFactory container=(BeanFactory)bindViaCode(beanRegistry);

  

  FXNewsProvider newsProvider=(FXNewsProvider)container.getBean("djNewsProvider");

  newsProvider.getAndPersistNews(); 

}



public static BeanFactory bindViaCode(BeanDefinitionRegistry registry)

{

  AbstractBeanDefinition newsProvider=new RootBeanDefinition(FXNewsProvider.class,true);

  AbstractBeanDefinition newsListener=new RootBeanDefinition(DowJonesNewsListener.class,true);

  AbstractBeanDefinition newsPersister=new RootBeanDefinition(DowJonesNewsPersister.class,true);



  //将bean定义注册到容器中

  registry.registerBeanDefinition("djNewsProvider",newsProvider);

  registry.registerBeanDefinition("djNewsListener",newsListener);

  registry.registerBeanDefinition("djNewsPersister",newsPersister);

  

  //指定依赖关系

   

  //1.可以通过构造方法注入方式

  ConstructorArgumentValues argValues=new ConstructorArgumentValues();

  argValues.addIndexedArgumentValue(0,newsListener);

  argValues.addIndexedArgumentValue(1,newsPersister);

  newsProvider.setConstructorArgumentValues(argValues);

  

  //2.或者通过setter方法注入方式

  MutablePropertyValues propertyValues=new MutablePropertyValues();

  propertyValues.addPropertyValue(new PropertyValue("newsListener",newsListener));

  propertyValues.addPropertyValue(new PropertyValue("newsPersister",newsPersister));

  newsProvider.setPropertyValues(propertyValues);

  

  //绑定完成

  return (BeanFactory)registry;

  

}