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SPRING3–动态工厂和静态工厂

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1.xml比较 区别：factory-bean class

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<!–动态工厂–>
<bean id=”beanServiceFactory” class=”com.bean.service1.beanServiceFactory”></bean>
<bean id=”beanServiceImpl” factory-bean=”beanServiceFactory” factory-method=”add”>
</bean>

<!–静态工厂–>
<bean id=“beanServiceImpl” class=“com.bean.service1.beanServiceFactory” factory-method=“update”></bean>

2.service比较

动态service:

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public interface beanService1 {  
     public beanServiceImpl add();   
}
public class beanServiceFactory implements beanService1{
     //动态方法
     public beanServiceImpl add() {
          return  new beanServiceImpl();
     }         
}

静态service:

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public class beanServiceFactory{
  //静态方法
  public static beanServiceImpl update() {
    return new beanServiceImpl();
  }
}

3.实现类

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//动态工厂
@Test
public void test2() {
    ApplicationContext applicationContext=new ClassPathXmlApplicationContext(“ApplicationContext.xml”);
    beanServiceImpl beanServiceImpl= (beanServiceImpl) applicationContext.getBean(“beanServiceImpl”);
    System.out.println(beanServiceImpl.getId());
}
//静态动态工厂
@Test
public void test3() {
    ApplicationContext applicationContext=new ClassPathXmlApplicationContext(“ApplicationContext.xml”);
    beanServiceImpl beanServiceImpl= (beanServiceImpl) applicationContext.getBean(“beanServiceImpl”);
    System.out.println(beanServiceImpl.getId());
}