Spring Boot Learning Example is a collection of practical Java projects for learning Spring Boot 2.x and related technologies. It begins with fundamental examples covering configuration, Hello World applications, web development, validation, and RESTful JSON services. Database examples demonstrate MyBatis, annotation-based mappings, multiple data sources, and Redis-backed caching. Additional projects integrate Elasticsearch, HBase, FreeMarker, Dubbo, ZooKeeper, and other common backend...