RequiredAnnotationBeanPostProcessor.java 文件源码

@Override
public PropertyValues postProcessPropertyValues(
        PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName)
        throws BeansException {

    if (!this.validatedBeanNames.contains(beanName)) {
        if (!shouldSkip(this.beanFactory, beanName)) {
            List<String> invalidProperties = new ArrayList<String>();
            for (PropertyDescriptor pd : pds) {
                if (isRequiredProperty(pd) && !pvs.contains(pd.getName())) {
                    invalidProperties.add(pd.getName());
                }
            }
            if (!invalidProperties.isEmpty()) {
                throw new BeanInitializationException(buildExceptionMessage(invalidProperties, beanName));
            }
        }
        this.validatedBeanNames.add(beanName);
    }
    return pvs;
}