spring的@PostConstruct 和 @PreDestory注解，類似於在配置文件中定義init-method 和 destory-method方法

import javax.annotation.PostConstruct;  
import javax.annotation.PreDestroy;  
  
public class PersonService {  
    
    private String  message;  
  
    public String getMessage() {  
        return message;  
    }  
  
    public void setMessage(String message) {  
        this.message = message;  
    }  
      
    @PostConstruct  
    public void  init(){  
        System.out.println("I'm  init  method  using  @PostConstrut...."+message);  
    }  
      
    @PreDestroy  
    public void  dostory(){  
        System.out.println("I'm  destory method  using  @PreDestroy....."+message);  
    }  
      
}  

然后，在spring.xml中配置bean，最后啟動：

ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
PersonService personService = (PersonService)context.getBean("personService");
context.destroy();