第一步:Bean3實體

public class Bean3 {

}

第二步:工廠(實現介面模式)

public class Bean4Factory implements FactoryBean {


    @Override
    public Object getObject() throws Exception {
        return new Bean3();
    }

    @Override
    public Class<?> getObjectType() {
        return null;
    }

    @Override
    public boolean isSingleton() {
        return false;
    }
}

第三步:配置

<!--補充:通過實現FactoryBean-->
<bean id="bean3_1" class="it.heima.Dao.Bean4Factory"/>

第四步:測試

@Test
public void testBean3_1(){
    ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
    Bean3 bean3 = applicationContext.getBean("bean3_1", Bean3.class);
    System.out.println(bean3);
}