使用spring创建bean有三种方式：
1、使用默认构造器方法实例化
<bean id="serviceBean" class="yujinghuan.service.ServiceBean"></bean>
2、使用静态工厂方法实例化
public class ServiceBeanFactory{
public satic ServiceBean createServiceBeanFactory(){
return new ServiceBean();
}
}
<bean id="serviceBean" class="yujinghuan.service.ServiceBeanFactory" factory-method="createServiceBean"></bean>
3、使用实例工厂方法实例化
public class ServiceBeanFactory{
public ServiceBean createServiceBeanFactory(){
return new ServiceBean();
}
}
<bean id="serviceBeanFactory" class="yujinghuan.service.ServiceBeanFactory"></bean>
<bean id="serviceBean" factory-bean="serviceBeanFactory" factory-method="createServiceBean"></bean>