BeanTypeRegistry.java 文件源码

private Class<?> getDirectFactoryBeanGeneric(
        ConfigurableListableBeanFactory beanFactory, BeanDefinition definition,
        String name) throws ClassNotFoundException, LinkageError {
    Class<?> factoryBeanClass = ClassUtils.forName(definition.getBeanClassName(), beanFactory.getBeanClassLoader());
    Class<?> generic = ResolvableType.forClass(factoryBeanClass).as(FactoryBean.class).resolveGeneric();
    if ((generic == null || generic.equals(Object.class))
            && definition.hasAttribute(FACTORY_BEAN_OBJECT_TYPE)) {
        generic = getTypeFromAttribute(definition.getAttribute(FACTORY_BEAN_OBJECT_TYPE));
    }
    return generic;
}