我通过XML配置和实例工厂方法实例化一些bean:
<bean id="galleryBeanFactory" class="de.tikron.webapp.gallery.bean.XmlGalleryBeanFactory" />
<bean id="pictureBean" factory-bean="galleryBeanFactory" factory-method="createPictureBean" scope="prototype" />
我通过BeanFactory.getBean(&#34; bean&#34;,arguments ...)实例化我的原型bean编程:
BeanFactory bf = ContextLoader.getCurrentWebApplicationContext();
PictureBean pictureBean = (PictureBean) bf.getBean("pictureBean", picture);
使用Spring 3,我想更改为带注释的基于java的bean配置。这是我的FactoryBean:
@Configuration
public class AnnotatedGalleryBeanFactory implements GalleryBeanFactory
@Bean
@Scope(BeanDefinition.SCOPE_PROTOTYPE)
protected PictureBean createPictureBean(Picture picture) {
PictureBean bean = new PictureBean();
bean.setPicture(picture);
return bean;
}
}
我的问题:我如何在这里传递参数?上面的代码导致org.springframework.beans.factory.NoSuchBeanDefinitionException:找不到类型为[... model.Picture]的限定bean用于依赖。
答案 0 :(得分:5)
使用像
这样的bean定义@Bean
@Scope(BeanDefinition.SCOPE_PROTOTYPE)
protected PictureBean createPictureBean(Picture picture) {
PictureBean bean = new PictureBean();
bean.setPicture(picture);
return bean;
}
bean定义名称为createPictureBean
。您可以每次使用BeanFactory#getBean(String, Object...)
来调用它
ApplicationContext ctx = ...; // instantiate the AnnotationConfigApplicationContext
Picture picture = ...; // get a Picture instance
PictureBean pictureBean = (PictureBean) ctx.getBean("createPictureBean", picture);
Spring将使用给定的参数(在本例中为picture
)来调用@Bean
方法。
如果你没有提供参数,Spring会在调用方法时尝试自动装配参数,但会因为上下文中没有Picture
bean而失败。