public NacosPropertySource build(String dataId, String group, String fileExtension,
			boolean isRefreshable) {
		List<PropertySource<?>> propertySources = loadNacosData(dataId, group,
				fileExtension);
		NacosPropertySource nacosPropertySource = new NacosPropertySource(propertySources,
				group, dataId, new Date(), isRefreshable);
		NacosPropertySourceRepository.collectNacosPropertySource(nacosPropertySource);
		return nacosPropertySource;
	}
@param dataId Nacos dataId
@param group Nacos group
spring-cloud-alibaba-starters/spring-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/client/NacosPropertySourceBuilder.java