Being Smoooth with Spring Boot
it's just too bootful
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
Here comes the boot!
-
quick project start-up
-
opinionated view
-
minimum fuss
Springs User Best Friend
<3
how do I show this?
quick project start-up
Spring Initializr
Spring DevTools
opinionated view
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
minimum fuss
Over 40 integrations
Great support from Intellij
Community Backing
Sh*t-ton of guides
Support
Widely used
Netflix micro-services uses spring-boot
Dropwizard vs
Spring Boot
| Dropwizard | Spring Boot | |
|---|---|---|
| Server | Jetty | Tomcat, Jetty, Undertow |
| REST support | Jersey | Spring MVC, Jersey |
| Other service types support? | Not officially | AMQP, SOAP, WS, JMS, etc. |
| Dependency Injection | Not officially. | Spring DI |
| Persistence | Dropwizard-Hibernate | JPA, JDBC, Non-Relational DBs (spring data) |
| Jar | Shaded Jar | Nested Jars |
| Transaction | Only Rest layer level | Anywhere |
| Healthcheck & Metrics | Dropwizards Builtin | Springs Builtin |
Spring Boot/Dropwizard
Dropwizard is simplifying...
...Spring Boot is
Smoooth
Conclusion
Spring is awesome!
Contact
c.franz-hoppen@klarna.com
#freja-public
