Spring bean initialization and destruction of certain actions (X)

1. To achieve InitializingBean, DisposableBean interfaces, override method

Specific achieve the following:

public class SetByJava implements InitializingBean,DisposableBean{

	public void destroy() throws Exception {
		System.out.println("destroy");
		
	}

	public void afterPropertiesSet() throws Exception {
		System.out.println("init");
	}

	public void doSomething() {
		System.out.println("doSomething");
	}
}

Configuring bean

	<bean id="text" class="InitAndDestroy.SetByJava">
	</bean>

Test, instantiate ConfigurableApplicationContext, call the close method of simulation destroyed.

		ConfigurableApplicationContext app = new ClassPathXmlApplicationContext("initText.xml");
		SetByJava demo = (SetByJava)app.getBean("text");
		demo.doSomething();
		app.close();

Test results:

2. Configure the time specified in the original bean with methods of destruction

as follows:

public class SetByXml{
	public void destroy() throws Exception {
		System.out.println("destroy");	
	}
	public void afterPropertiesSet() throws Exception {
		System.out.println("init");
	}
	public void doSomething() {
		System.out.println("doSomething");
	}
}

Configuration bean:

<bean id="text2" class="InitAndDestroy.SetByXml" init-method="afterPropertiesSet" destroy-method="destroy">
</bean>

The same test results obtained.

3, annotation-based configuration

as follows:

public class SetByAnno{
	@PreDestroy
	public void destroy() throws Exception {
		System.out.println("destroy");	
	}
	@PostConstruct
	public void afterPropertiesSet() throws Exception {
		System.out.println("init");
	}
	public void doSomething() {
		System.out.println("doSomething");
	}
}

Configuration bean:

<context:annotation-config />
<bean id="text3" class="InitAndDestroy.SetByAnno">
</bean>

The same test results obtained.