Bootiful Spring Boot 3.x
summary
Spring Boot 3.x on Java 21 builds a data‑centric service wired to PostgreSQL via Docker Compose and Spring Data, demos Spring AI calling an LLM for RAG, and shows Project Loom virtual threads turning a 1,000‑thread, 100 ms sleep IO workload into cheap concurrency. Native AOT with GraalVM native image compiles in ~48s to a 102 MB binary that uses ~118 MB RSS at runtime. Spring Boot 3.2 auto‑enables virtual thread executors for MVC.
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chapters (7)
- 0:00Introduction to Spring Boot 3.x
- 5:21Setting up Spring Boot project
- 10:38Java 21 and data-oriented programming
- 24:23Introducing Spring AI
- 31:25Virtual threads in Java 21
- 39:15Containerizing Spring Boot apps
- 57:40Summary for Java developers
