Introduction to Spring Boot presented at jDays 2015.

1. Getting Familiar
with Spring Boot
Mattias Severson
17th March 2015

2. Mattias
@mattiasseverson
http://jayway.com/author/mattiasseverson/

3. Agenda
• Spring Boot
• Getting Started
• Micro Service
• Production Ready Features
• and more…

4. Spring Boot?
Spring Boot makes it easy to create stand-
alone, production-grade Spring based
Applications that you can "just run". We take
an opinionated view of the Spring platform
and third-party libraries so you can get started
with minimum fuss.

5. Requirements
• Recommended to use Java 8
• Default support of Java 7
• Can use Java 6 with some config

6. Maturity
• Announced in Sept 2013
• 1.0 released April 2014
• Latest release 1.2.2 February 2015
• Built on Spring 4.1.x

7. Spring Initializr
http://start.spring.io/

8. Starter POMs
spring-boot-starter-*
• spring-boot-starter-web
• spring-boot-starter-security
• spring-boot-starter-data-mongodb
• spring-boot-starter-websocket
• spring-boot-starter-social-facebook
• 40+ in total

9. Bean Magic
@SpringBootApplication
@Configuration
@ComponentScan
@EnableAutoConfiguration

10. @EnableAutoConfiguration
@Conditional
@ConditionalOnClass
@ConditionalOnBean
@ConditionalOnMissingBean

11. Micro Service
• Little (own) code required
• ~10 MB disc (incl Embedded Tomcat)
• ~300 MB memory (incl Tomcat)

12. Production Ready
“Feature complete”
is not the same as
“production ready”

13. Actuator
• Metrics
• Health Check
• Environment
• Trace
• …

14. Logging
• Logback by default
• Log rotation
• Predefined format
• Configurable location and filename

15. Configurable
• server.port=8090
• server.session-timeout=30
• security.user.name=admin
• spring.http.gzip.*
• and much more…

16. More Features
• Externalized Configuration
• CommandLineRunner
• Application Events and Listeners
• MessageChannel
• DB Schema Migration
• …

17. View Support
Supported Template Engines:
• FreeMarker
• Groovy Templates
• Thymeleaf
• Velocity
• Mustache

18. References
Spring Initializr http://start.spring.io/
Spring Guides http://spring.io/guides/
Spring Boot
Reference Guide
http://docs.spring.io/spring-boot/
docs/current/reference/htmlsingle/

19. @mattiasseverson
http://jayway.com/author/mattiasseverson/