Spring Cloud Context provides a PropertySource that caches random values based on a key. Outside of the caching functionality it works the same as Spring Boot’s RandomValuePropertySource. This random value might be useful in the case where you want a random value that is consistent even after the Spring Application context restarts. The property value takes the form of cachedrandom.[yourkey].[type] where yourkey is the key in the cache. The type value can be any type supported by Spring Boot’s RandomValuePropertySource.spring-doc.cn