ENTERPRISE JAVA IN THE AI ERA

Modern Java with Spring Boot and GenAI Handbook

Build an enterprise Java application from modern language foundations and Spring Boot APIs to JPA persistence, grounded Generative AI, security, testing and Docker deployment.

Connected learning pathBeginner-friendlyReal project scenarios
Start with Byte 01
ENTERPRISE POLICY ASSISTANTBuild dependable Java systems with grounded AI.SPRING
Java→REST API→Policies→Grounded AI
Typed · secure · testable · deployable

HANDBOOK OVERVIEW

See the whole system.
Then master each decision.

This is a connected learning path—not a collection of isolated tips. Every Byte builds the mental model, makes the workflow visible and applies it to a situation you could meet in a real project.

Designed for practical understandingFinish ready to recognise, apply and explain the concept.
WHO THIS IS FORJava beginners and enterprise application developers
01
STARTING POINTBasic programming awareness; no Spring experience required
02
WHAT YOU WILL BUILDA Java → API → database → RAG → production workflow
03
THE MAANAVAN LEARNING METHODOne clear progression in every Byte

Move from first understanding to confident explanation.

UNDERSTANDBuild the mental modelStart with plain language and a familiar analogy.VISUALISEFollow the workflowSee how each component connects and why it matters.APPLYEnter a real scenarioUse the concept in a practical project situation.EXPLAINMake the decision clearFinish with mistakes, takeaways and an interview answer.

CONNECTED LEARNING PATH

Learn in the order the work happens.

Complete one focused concept at a time. Every chapter includes practical guidance you can use immediately.

Complete handbook
START5 guided BytesPRACTICAL OUTCOME
BYTE 01 OF 05 · Java & Enterprise AIJava + Spring Boot
beginner · 22 min

Modern Java and Spring Boot Basics for AI Applications

Understand Spring Boot layers, dependency injection and the complete request lifecycle behind a maintainable, testable Java AI application service.

AFTER THIS BYTEBuild a clear foundation
Modern Java, Spring Boot & GenAIStart this Byte
BYTE 02 OF 05 · Java & Enterprise AIConnect LLMs
beginner · 23 min

Connect Spring Boot to LLMs with Spring AI

Use Spring AI ChatClient, prompt roles, model configuration and typed structured output to create a predictable, testable AI endpoint in Java.

AFTER THIS BYTEFollow the working process
Modern Java, Spring Boot & GenAIStart this Byte
BYTE 03 OF 05 · Java & Enterprise AIBuild RAG
beginner · 24 min

Build RAG in Spring Boot with Spring AI

Connect Spring AI VectorStore retrieval, Advisors and ChatClient so a Java application answers from approved enterprise documents with evidence.

AFTER THIS BYTEConnect the concept to practice
Modern Java, Spring Boot & GenAIStart this Byte
BYTE 04 OF 05 · Java & Enterprise AIAdd AI agents
beginner · 24 min

AI Agents and Tool Calling in Spring Boot

Expose bounded Java methods as AI-agent tools with input validation, user authorisation, meaningful approval boundaries and complete audit evidence.

AFTER THIS BYTERecognise risks and controls
Modern Java, Spring Boot & GenAIStart this Byte
BYTE 05 OF 05 · Java & Enterprise AIRun production
beginner · 25 min

Production Java and Spring Boot GenAI Applications

Secure, test, observe and deploy Java AI endpoints with timeouts, bounded retries, safe fallbacks, operational evidence and cost controls.

AFTER THIS BYTEApply it with confidence
Modern Java, Spring Boot & GenAIStart this Byte