AbstractAutowireCapableBeanFactory.java 文件源码

@Override
public Object configureBean(Object existingBean, String beanName) throws BeansException {
    markBeanAsCreated(beanName);
    BeanDefinition mbd = getMergedBeanDefinition(beanName);
    RootBeanDefinition bd = null;
    if (mbd instanceof RootBeanDefinition) {
        RootBeanDefinition rbd = (RootBeanDefinition) mbd;
        bd = (rbd.isPrototype() ? rbd : rbd.cloneBeanDefinition());
    }
    if (!mbd.isPrototype()) {
        if (bd == null) {
            bd = new RootBeanDefinition(mbd);
        }
        bd.setScope(BeanDefinition.SCOPE_PROTOTYPE);
        bd.allowCaching = ClassUtils.isCacheSafe(ClassUtils.getUserClass(existingBean), getBeanClassLoader());
    }
    BeanWrapper bw = new BeanWrapperImpl(existingBean);
    initBeanWrapper(bw);
    populateBean(beanName, bd, bw);
    return initializeBean(beanName, existingBean, bd);
}