CustomPropertyPlaceholderConfigurer.java 文件源码

@Override
protected void processProperties(final ConfigurableListableBeanFactory beanFactoryToProcess, final Properties props) throws BeansException {
    super.processProperties(beanFactoryToProcess, props);
    properties = props;
    for (final Map.Entry entry : properties.entrySet()) {
        resolveSubstitution((String) entry.getKey(), (String) entry.getValue());
    }
}