? ? parseDefaultElement函數(shù)解析默認標簽, 分為4種(import、 alias、 bean、 beans)不同的處理

bean標簽的解析及注冊

????protected void processBeanDefinition(Element ele, BeanDefinitionParserDelegate delegate) {

????????BeanDefinitionHolder bdHolder = delegate.parseBeanDefinitionElement(ele);

????????if (bdHolder !=null) {

????????????bdHolder = delegate.decorateBeanDefinitionIfRequired(ele, bdHolder);

????????????try {

????????????????// Register the final decorated instance.

????????????????BeanDefinitionReaderUtils.registerBeanDefinition(bdHolder, getReaderContext().getRegistry());

????????????}

????????????catch (BeanDefinitionStoreException ex) {

????????????????getReaderContext().error("Failed to register bean definition with name '" +

????????????????bdHolder.getBeanName() +"'", ele, ex);

????????????}

????????????// Send registration event.

????????????getReaderContext().fireComponentRegistered(new BeanComponentDefinition(bdHolder));

????????}

????}