开发笔记:（002）spring容器中bean初始化销毁时执行的方法及其3种实现方式

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
com.edu.spring
spring
1.0.0
spring

http://www.example.com

UTF-8
1.8
1.8




org.springframework
spring-context
4.3.2.RELEASE

package com.edu.spring;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
public class Cat implements InitializingBean,DisposableBean{
@Override
public void afterPropertiesSet() throws Exception {
// TODO Auto-generated method stub
System.out.println("-----------afterPropertiesSet--------------");
}
@Override
public void destroy() throws Exception {
// TODO Auto-generated method stub
System.out.println("-----------destroy--------------");
}
}

package com.edu.spring;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MyConfig {

@Bean
public Cat createCat(){
return new Cat();
}
}

package com.edu.spring;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class App
{
public static void main( String[] args )
{
AnnotationConfigApplicationContext context=new AnnotationConfigApplicationContext(MyConfig.class);
System.out.println(context.getBean(Cat.class));
context.close();
}
}

package com.edu.spring;
public class Dog {
public void init(){
System.out.println("----------Dog init---------");
}

public void destroy(){
System.out.println("----------Dog destroy---------");
}
}

package com.edu.spring;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MyConfig {

@Bean(initMethod="init",destroyMethod="destroy")
public Dog createDog(){
return new Dog();
}
}

package com.edu.spring;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class App
{
public static void main( String[] args )
{
AnnotationConfigApplicationContext context=new AnnotationConfigApplicationContext(MyConfig.class);
System.out.println(context.getBean(Dog.class));
context.close();
}
}

package com.edu.spring;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
public class Animal {
@PostConstruct
public void initial(){
System.out.println("-------initial---------");
}

@PreDestroy
public void close(){
System.out.println("---------close---------");
}
}

package com.edu.spring;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MyConfig {

@Bean
public Animal createAniaml(){
return new Animal();
}
}

package com.edu.spring;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class App
{
public static void main( String[] args )
{
AnnotationConfigApplicationContext context=new AnnotationConfigApplicationContext(MyConfig.class);
System.out.println(context.getBean(Animal.class));
context.close();
}
}