Spring Boot

Spring Boot provides mechanisms for creating microservices based on an opinionated view of what technologies should be used. Spring Boot applications are Spring applications, and use a programming model unique to that ecosystem.

Spring Boot applications can be packaged to run as an application hosted by an application server, or run as a runnable jar containing the composition of dependencies and some flavor of embedded server (usually Tomcat). Spring Boot emphasizes convention over configuration, and uses a combination of annotations and classpath discovery to enable additional functions.

Spring Cloud is a collection of integrations between third-party cloud technologies and the Spring programming model. Some are integrations between the spring programming model and third party technologies. In fewer cases, Spring Cloud technologies are usable outside of the Spring programming model, like Spring Cloud Connectors Core1.