Getting Started with Spring Boot - introduction to Spring Boot and why you don't want to miss out on this technology

1. Getting Started with Spring Boot
by David Kiss

2. Agenda
• What is Spring Boot?
• Configuration
• DB versioning with Liquibase
• Health checks
• Admin tasks
• Tracing HTTP requests
• Stand-alone jar

3. What is Spring Boot
• Spring Boot makes it easy to get started with
building web applications with minimum fuss
• Provides out-of-the-box features like
embedded servlet container, security,
metrics, health checks, externalized
configuration)
• No code generation
• No requirement for XML configuration.

4. Built on the Spring Platform

5. Why Using Spring Boot?
• Productivity
– Convention over configuration
– Designed to get you up and running as quickly as possible (http://start.spring.io/)
– Built on top of Spring Framework - wide range of supported technologies & frameworks
• Cleaner code
– Inversion of Control
– Easy to write tests
– Less boilerplate code
• Running in production
– Supports the Microservice Architecture (http://microservices.io/)
– Automated DB upgrades using Liquibase (http://www.liquibase.org/) and Flyway
(http://flywaydb.org/)
– Spring Cloud support (http://projects.spring.io/spring-cloud/) - distributed configuration
management, service discovery, circuit breakers, intelligent routing, etc.
– Eliminates need to manage & tweak application servers

6. How We Benefit From Spring Boot?
• Increased developer productivity
• Ease of deployment
• Support from large and active community

7. Configuration – Hello World!

8. Configuration – Application class
No XML configuration is required

9. Configuration – application.yaml
Environment-aware configuration

10. Configuration – build.properties
Jenkins populates the params

11. Configuration – Build Info
GET http://localhost:8081/manage/info

12. Automated DB versioning
Liquibase will be called on app startup

13. Health-checks – Custom Indicators

14. Health-checks – In Action
GET http://localhost:8081/manage/health

15. Admin Tasks (for internal access)
PUT http://localhost:8081/manage/create-user

16. Tracing HTTP requests
GET http://localhost:8081/manage/trace

17. Stand-alone jar – pom.xml
$ mvn package

18. Stand-alone jar – Start up

19. Q&A