BeanTypeRegistry.java 文件源码

private Class<?> getConfigurationClassFactoryBeanGeneric(ConfigurableListableBeanFactory beanFactory,
                                                         BeanDefinition definition, String name) throws Exception {
    Method method = getFactoryMethod(beanFactory, definition);
    Class<?> generic = ResolvableType.forMethodReturnType(method).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;
}