Spring 一二事（4） - 单例

1 　　 <!-- singleton: 默认单例 prototype: 多例 request ，session和global session: 只适用于web程序 -->
2     <bean id="scope_prototype" class="com.lee.spring005.scope.Scope"
3         scope="prototype"></bean>
4 
5     <!-- destroy-method 一般在数据源的时候用到，关闭容易后就销毁连接 -->
6     <bean id="initDestory" class="com.lee.spring006.init_destory.InitDestory"
7         init-method="init" destroy-method="destory"></bean>

 1 package com.lee.spring006.init_destory;
 2 
 3 public class InitDestory {
 4 
 5     public InitDestory() {
 6         System.out.println("InitDestory() ");
 7     }
 8 
 9     public void hello() {
10         System.out.println("Hello InitDestory!");
11     }
12     
13     public void init() {
14         System.out.println("init");
15     }
16     
17     public void destory() {
18         System.out.println("destory");
19     }
20 }

 1     @Test
 2     public void testInitDestory() {
 3 
 4         ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
 5         
 6         InitDestory initDestory = (InitDestory)context.getBean("initDestory");
 7         initDestory.hello();
 8         
 9         ClassPathXmlApplicationContext app = (ClassPathXmlApplicationContext)context;
10         app.close();
11     }