@Component
public class MyBeanFactory implements BeanFactoryAware {
private static MyBeanFactory myBeanFactory;
private static BeanFactory beanFactory;
//回调方法
public void setBeanFactory(BeanFactory factory) throws BeansException {
// TODO Auto-generated method stub
this.beanFactory = factory;
System.out.println("==>>>>setBeanFactory<<<<<<==");
}
public BeanFactory getBeanFactory() {
return beanFactory;
}
public static MyBeanFactory getInstance(){
if(myBeanFactory==null){
myBeanFactory = (MyBeanFactory) beanFactory.getBean("myBeanFactory");
}
return myBeanFactory;
}
public static Object getBean(String beanName){
return beanFactory.getBean(beanName);
}
public static Object getBean(String beanName, Class clazz){
return beanFactory.getBean(beanName, clazz);
}
}<!-- 属性文件读入 -->
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath*:jdbc.properties</value>
</list>
</property>
</bean>
<!-- 使用annotation 自动注册bean,并保证@Required,@Autowired的属性被注入。此处应该缩小范围，以加快速度。 -->
<context:component-scan base-package="com.perlin" />
<!-- dsPrototype只是作为一个原型或模板，不要在配置文件或Annotation中引用它！ -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" lazy-init="true" scope="prototype">
<property name="driverClass"><value>${jdbc.driverClassName}</value></property>
<property name="url"><value>${jdbc.url}</value></property>
<property name="username"><value>${jdbc.username}</value></property>
<property name="password"><value>${jdbc.password}</value></property>
</bean>
<!-- 事务管理器配置,单数据源事务 -->
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<bean id="myBeanFactory" class="com.perlin.dao.MyBeanFactory"></bean>
以上是我自定义Bean实现BeanFactoryAware接口，以及applicationContext.xml的配置，但是ioc容器启动之后，我调用MyBeanFactory的getInstance()方法，发现beanFactory为空，直接调用getBean(String beanName)方法也是一样。不知为何？哪位高手给我解答下，我纠结了好几天了。。。