3 hours/week
Learn one Spring abstraction at a time with small endpoints.
Programming technologie guide
Learn Spring Boot
Learn Spring Boot through prerequisites, core workflows, projects, troubleshooting, and production practices.
Best for
- Java backend services and enterprise applications
- REST APIs using the Spring ecosystem
- Applications requiring dependency injection, configuration, persistence, and production tooling
Prerequisites
- Core Java classes, interfaces, collections, exceptions, and generics
- Maven or Gradle basics
- HTTP and relational database fundamentals
Learning sequence
Recommended Learning Order
- 1
Stage 1
Application bootstrap, configuration, dependency injection, and controllers
- 2
Stage 2
Validation, service boundaries, error handling, and serialization
- 3
Stage 3
Persistence, repositories, transactions, and migrations
- 4
Stage 4
Security, authentication, authorization, and testing
- 5
Stage 5
Observability, configuration profiles, deployment, and performance
Study Timeline
6 hours/week
Build a database-backed service with validation and tests.
10 hours/week
Build a secured service and add production observability and deployment.
Project Progression
Beginner: validated REST service
Intermediate: transactional database-backed API
Portfolio: secured, tested service with metrics, logging, and deployment configuration
Common Mistakes
- Learning annotations without understanding dependency injection
- Putting transaction boundaries in the wrong layer
- Returning persistence entities directly without considering API contracts
- Ignoring configuration differences between environments
Job-Ready Skills
- Spring dependency injection
- REST controllers
- Validation
- Persistence and transactions
- Security
- Testing and observability
Frequently Asked Questions
Should I learn Java before Spring Boot?
Yes. Spring assumes strong Java fundamentals, especially classes, interfaces, exceptions, generics, collections, and build tools.