标签：turn property throws etc initial location exp ase public
1、导入资源文件
<context:property-placeholder location="classpath:db.properties"/>
用${}来引用
2、SpEL
使用#{}
3、 bean生命周期方法
1 public class Bean1 { 2 3 public Bean1() { 4 System.out.println("Bean1()"); 5 } 6 7 public void init() { 8 System.out.println("init..."); 9 } 10 11 @Override 12 public String toString() { 13 return this.getClass().getName(); 14 } 15 16 public void destroy() { 17 System.out.println("destroy..."); 18 } 19 20 }
配置：
1 <bean id="bean1" class="demo.Bean1" init-method="init" destroy-method="destroy" />
4、配置bean的时parent、p命名空间和depends-on。。。的使用
5、bean的后置处理器
1 public class MyBeanPostProcessor implements BeanPostProcessor { 2 3 @Override 4 public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { 5 System.out.println("postProcessBeforeInitialization: " + beanName); 6 return bean; 7 } 8 9 @Override 10 public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { 11 System.out.println("postProcessAfterInitialization: " + beanName); 12 return bean; 13 } 14 15 }
配置：
1 <bean class="demo.MyBeanPostProcessor" />
6、在classpath中扫描组件
1 <context:component-scan base-package="" resource-pattern=""> 2 <context:include-filter type="" expression=""/> 3 <context:exclude-filter type="" expression=""/> 4 </context:component-scan>
标签：turn property throws etc initial location exp ase public
原文地址：http://www.cnblogs.com/upsidedown/p/6296980.html
