spring destroy bean manually instead of ctx.close()

问题

is it possible to tell the container of spring to destroy a specific bean (prototype) in order to save up memory?

I dont want to user ctx.close() in order to see this bean destroyed, but rather on runtime.

回答1:

If I understand you correctly you want to remove bean that was defined in the ctx at runtime, will I use BeanDefinitionRegistry to get this done, BeanDefinitionRegistry has a method of removeBean() which takes the bean name as the parameter.

BeanDefinitionRegistry factory = 
   (BeanDefinitionRegistry) applicationCtx.getAutowireCapableBeanFactory();

Then

((DefaultListableBeanFactory) beanFactory).destroySingleton("myBean");

EDIT

reference http://static.springsource.org/spring/docs/3.0.x/api/org/springframework/beans/factory/support/BeanDefinitionRegistry.html#removeBeanDefinition%28java.lang.String%29

来源：https://stackoverflow.com/questions/16667957/spring-destroy-bean-manually-instead-of-ctx-close