Spring init和destroy方法

时间:2011-08-04 15:48:09

标签: spring methods init destroy

package com.idol;

public class Auditorium {       
Auditorium(){
}  
public void turnOnLights() {  
    System.out.println("Lights are turned on"); 
}  
public void turnOffLights(){  
    System.out.println("Lights are turned off");
}  

}

对于xml上下文,我有:

 <bean id="Auditorium" class="com.idol.Auditorium" init-method="turnOnLights" destroy-method="turnOffLights"/>

测试:

ApplicationContext auditorium =
        new ClassPathXmlApplicationContext("ApplicationContextVer6.xml"); 

auditorium.getBean("Auditorium");

我明白了:

仅打印“灯已打开”且不打印“灯已关闭”。我虽然在破坏bean之前它也应该调用destroy-method,但我错过了什么或没有得到什么? (我在日志中没有错误,以防万一)

由于

2 个答案:

答案 0 :(得分:5)

试试这样:

final ConfigurableApplicationContext auditorium =
        new ClassPathXmlApplicationContext("ApplicationContextVer6.xml");
auditorium.getBean("Auditorium");
auditorium.close(); // thx Nathan

// auditorium.refresh() will also turn the lights off
// before turning them on again

答案 1 :(得分:0)

您无法观察destroy方法的工作原理,因为bean始终在Spring上下文中可用。当您关闭/销毁应用程序上下文时,应该销毁在其中实例化的所有bean。请查看close()课程中的destroy()org.springframework.context.support.AbstractApplicationContext方法。