Java Spring Boot — Lesson 1: Spring Boot Foundations, Dependency Injection, Configuration, and Application Design

Technical Scope

• Spring Boot starters, auto-configuration, application bootstrap, and project structure
• beans, dependency injection, configuration classes, component scanning, and lifecycle
• properties, YAML, profiles, external configuration, validation, and secrets
• layered architecture, domain boundaries, logging, and development workflow

Instructor Demonstration

Demonstrate Spring Boot starters, auto-configuration, application bootstrap, and project structure within a secure order-management REST service built with Spring Boot, persisted transactionally, tested across layers, observed in production, and packaged for container deployment, then capture the exact configuration, command, transaction, report, trace, or code evidence that proves the expected result.

Applied Workshop

Implement a controlled workshop covering beans, dependency injection, configuration classes, component scanning, and lifecycle and properties, YAML, profiles, external configuration, validation, and secrets, then test a failure, exception, or business-control scenario involving layered architecture, domain boundaries, logging, and development workflow.

1. Confirm the environment, identities, data, dependencies, controls, and expected result.
2. Complete the product-specific configuration, development, analysis, or business-process task.
3. Capture commands, configuration, output, logs, transactions, reports, or test evidence.
4. Explain the operational, security, performance, data-quality, or business trade-off.

Validation Standard

The Spring Boot Foundations, Dependency Injection, Configuration, and Application Design result must be reproducible, traceable to approved inputs, and consistent with expected Oracle product or business-process behavior.

• The intended target, scope, and ownership are verified.
• The result is supported by reproducible evidence and expected-value checks.
• Security, performance, reliability, data quality, and support impact are reviewed.
• Unexpected behavior is investigated before acceptance or release.

Failure Analysis

Diagnose issues in Spring Boot starters, auto-configuration, application bootstrap, and project structure, beans, dependency injection, configuration classes, component scanning, and lifecycle, properties, YAML, profiles, external configuration, validation, and secrets, or layered architecture, domain boundaries, logging, and development workflow without making an unverified production change.

Learners isolate the smallest proven cause, apply a reversible correction, rerun validation, and record the preventive action.

Practical Outcome

Complete a validated implementation or analysis for Spring Boot Foundations, Dependency Injection, Configuration, and Application Design and defend the result with documented evidence.