@Bean
	@ConditionalOnMissingBean(search = SearchStrategy.CURRENT)
	@ConditionalOnNonDefaultBehavior
	public ConfigurationPropertiesRebinder smartConfigurationPropertiesRebinder(
			ConfigurationPropertiesBeans beans) {
		// If using default behavior, not use SmartConfigurationPropertiesRebinder.
		// Minimize te possibility of making mistakes.
		return new SmartConfigurationPropertiesRebinder(beans);
	}
Compatible with bootstrap way to start.
spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigSpringCloudBootstrapConfiguration.java