Spring之Bean对象的初始化和销毁方法

public class User {

	private int id;
	
	private String name;
	
	private String beanName;
	
	public User(){
		System.out.println("User 被实例化");
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getBeanName() {
		return beanName;
	}

	public void setBeanName(String beanName) {
		this.beanName = beanName;
	}
	
	/**
	 * 自定义的初始化方法
	 */
	public void start(){
		System.out.println("--自定义的初始化的方法--");
	}
	
	/**
	 * 自定义的初始化的方法
	 */
	@PostConstruct
	public void postConstruct(){
		System.out.println("...postConstruct...");
	}
	
	/**
	 * 销毁前回调方法
	 */
	@PreDestroy
	public  void preDestory(){
		System.out.println("--preDestory---");
	}
	/**
	 * 销毁前的回调方法
	 */
	public void end(){
		System.out.println("--end--");
	}
	
	@Override
	public String toString() {
		return "User [id=" + id + ", name=" + name + ", beanName=" + beanName + "]";
	}
}

<?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:context="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 http://www.springframework.org/schema/context/spring-context-4.3.xsd">
	<!-- 激活那些已经在spring容器里注册过的bean（无论是通过xml的方式还是通过package sanning的方式）上面的注解 -->
	<context:annotation-config />
	
	<bean class="com.dpb.pojo.User" id="user" init-method="start" destroy-method="end">
		<property name="name" value="波波烤鸭"></property>
	</bean>
</beans>

@Test
public void test1() {
	ClassPathXmlApplicationContext ac = 
			new ClassPathXmlApplicationContext("applicationContext.xml");
	User user = ac.getBean(User.class);
	System.out.println(user);
	// 注册销毁
	ac.registerShutdownHook();
}

User 被实例化
...postConstruct...
--自定义的初始化的方法--
User [id=0, name=波波烤鸭, beanName=null]
--preDestory---
--end--