如何就解决配置文件脱敏

背景：
目前项目中，密码用户名都采用明文保存，为了安全考虑需要进行脱敏。
通过在 BeanFactoryPostProcessor 中，对属性进行解密。
遇到的困难：
在 BeanFactoryPostProcessor 中需要用到其他bean
解决办法：
通过 beanFactory中获取bean

@Slf4j
public class EncryptBeanFactoryPostProcessor implements BeanFactoryPostProcessor, Ordered {

    private ConfigurableEnvironment env;

    public EncryptBeanFactoryPostProcessor(ConfigurableEnvironment env) {
        this.env = env;
    }

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        ResourceLoader resourceLoader = new DefaultResourceLoader();
        MutablePropertySources propertySources = env.getPropertySources();
        EncryptionUtils encryption = beanFactory.getBean(EncryptionUtils.class);
        Map<String, Object> map = new HashMap<>();
        for (PropertySource<?> propertySource : propertySources) {
            if (propertySource instanceof MapPropertySource) {
                MapPropertySource source = (MapPropertySource) propertySource;
                //遍历所有的配置信息
                for (String name : source.getPropertyNames()) {
                    Object value = source.getProperty(name);
                    if (value instanceof String) {
                        String str = (String) value;
                        //包含加密前缀，截取去掉统一的加密前缀后的信息
                        if (str.startsWith("mpw:")) {
                            String st = encryption.encrypt(str.substring(5));
                            map.put(name, st);
                            log.info("Encrypt key:{},value:{}", name, st);
                        } else {
                            log.info("Encrypt key:{},value:{}", name, value);
                        }
                    }

                }
            }

        }

        if (!map.isEmpty()) {
            propertySources.addFirst(new MapPropertySource("custom-encrypt", map));
        }
    }


    @Override
    public int getOrder() {
        return Ordered.LOWEST_PRECEDENCE;
    }
}