关于Java中Bean的生命周期详解

@Component
public class BeanLifeComponent implements BeanNameAware {
 @PostConstruct
 public void postConstruct() {
 System.out.println("执⾏ PostConstruct()");
 }
 public void init() {
 System.out.println("执⾏ BeanLifeComponent init-method");
 }
 @PreDestroy
 public void preDestroy() {
 System.out.println("执⾏：preDestroy()");
 }
 public void setBeanName(String s) {
 System.out.println("执⾏了 setBeanName ⽅法：" + s);
 }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:content="http://www.springframework.org/schema/context"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
 <content:component-scan base-package="com.bit.component"></content:component-scan>
 <beans>
 <bean id="beanLifeComponent" class="com.bit.component.BeanLifeComponent" init-method="init"></bean>
 </beans>
</beans>

public class BeanLifeTest {
 public static void main(String[] args) {
 ClassPathXmlApplicationContext context =
 new ClassPathXmlApplicationContext("spring-config.xml");
 BeanLife life = context.getBean(BeanLife.class);
 System.out.println("执⾏ main ⽅法");
 // 执⾏销毁⽅法
 context.destroy();
 }
}