Who am I?

What we are going to see

• WTF is spring boot?
• a little demo
• Spring Boot vs Dropwizard
• Conclusion

What does it eat?
Where it lives?

wtf is spring boot?

TOO MUCH TO HANDLE

• quick project start-up

• opinionated view

• minimum fuss

Springs User Best Friend

<3

how do I show this?

Spring Initializr

https://start.spring.io/

Spring DevTools

https://spring.io/blog/2015/06/17/devtools-in-spring-boot-1-3​

Convention over Configuration

Auto Configuration

@Conditional(DataSourceAutoConfiguration.NonEmbeddedDataSourceCondition.class)
@ConditionalOnMissingBean({ DataSource.class, XADataSource.class })
protected static class NonEmbeddedConfiguration {

  @Autowired
  private DataSourceProperties properties;

  @Bean
  @ConfigurationProperties(prefix = DataSourceProperties.PREFIX)
  public DataSource dataSource() {
    DataSourceBuilder factory = DataSourceBuilder
        .create(this.properties.getClassLoader())
        .driverClassName(this.properties.getDriverClassName())
        .url(this.properties.getUrl()).username(this.properties.getUsername())
        .password(this.properties.getPassword());
    if (this.properties.getType() != null) {
      factory.type(this.properties.getType());
    }
    return factory.build();
  }

}

Externalized Config

same app; different envs

@project

@instance

spring:
  datasource:
    url: jdbc:postgresql://dockerhost:5432/stop_request
    username: postgres_user
    password: postgres_user
    driver-class: org.postgresql.Driver
    schema: stop_request
    validation-query: SELECT 1
    remove-abandoned: true
    test-on-borrow: true
  jpa:
    properties:
      hibernate.default_schema: stop_request
  hibernate:
    ddl-auto: validate

---
spring:
  profiles:
    active: staging
  datasource:
    url: jdbc:postgresql://staging:5432/stop_request

---
spring:
  profiles:
    active: production
  datasource:
    url: jdbc:postgresql://production-db-url:5432/stop_request

Over 40 integrations

Great support from Intellij

Sh*t-ton of guides

https://spring.io/guides

Support

https://spring.io/questions​

Widely used

Netflix micro-services uses spring-boot

https://spring.io/blog/2014/09/10/springone2gx-2014-day-1​

https://blog.de-swaef.eu/the-netflix-stack-using-spring-boot/

Spring Boot/Dropwizard

Dropwizard is simplifying...

...Spring Boot is 

Smoooth

Conclusion

Spring is awesome!

https://spring.io/projects​

Contact

c.franz-hoppen@klarna.com

#freja-public

WARN: caesar-ralf.franz-hoppen is my evil twin in slack! Message c.franz-hoppen