Spring Boot

Documentation

• Spring Boot Reference Guide - Current and Spring Boot Reference Guide - Current Snapshot - best friend of everyone working with Spring Boot.

• Spring Boot Starters - Spring Boot Starters are a set of convenient dependency descriptors that you can include in your application.

• Looking for source code? Spring Boot source code and Spring Boot samples

Getting started guides

• Building an Application with Spring Boot - An official guide

• Spring Boot and Thymeleaf with Maven - Learn how easy is to bootstrap Spring MVC application with Thymeleaf and Maven. Learn how to work with templates, webjars and how to package the application.

• Getting started with Jersey and Spring Boot - Spring Boot supports Jersey. This is great step to attract those developers who like the standard approach as they can now build RESTful APIs using JAX-RS specification and easily deploy it to Tomcat or any other Spring’s Boot supported container. Jersey with Spring platform can play an important role in the development of micro services. Learn how you can quickly build an application using Spring Boot (including: Spring Data, Spring Test, Spring Security) and Jersey.

Spring Boot + REST

• Spring Boot and Spring Data REST - exposing repositories over REST - Exposing Spring Data repositories over REST is pretty easy with Spring Boot and Spring Data REST. With minimal code one can create REST representations of JPA entities that follow the HATEOAS principle.

• Building a HATEOAS API with JAX-RS and Spring - Spring HATEOS allows creating REST representations that follow the HATEOAS principle and it has basic JAX-RS support. In this blog post you will learn how to use Spring HATEOAS with Jersey in a Spring Boot application.

Configuration

• Using @ConfigurationProperties in Spring Boot - Learn how to configure application using @Configuration properties that allows strongly typed beans to govern and validate the configuration of your application.

Testing

• Parameterized integration tests with Spring JUnit Rules - Spring comes with JUnit rules: SpringClassRule and SpringMethodRule. The main advantage of using JUnit rules is to let developers get rid of SpringJUnit4ClassRunner and utilize different JUnit runners in Spring integration tests. With Spring JUnit Rules creating parameterized integration tests is extremely easy.

• Spring Boot Integration Testing with Selenium - Web integration tests allow integration testing of Spring Boot application without any mocking. By using @WebIntegrationTest and @SpringApplicationConfiguration we can create tests that loads the application and listen on normal ports. This small addition to Spring Boot makes much easier to create integration tests with Selenium WebDriver.

• Groovier Spring Boot Integration Testing - User Groovy’s Rest Client to test Spring Boot REST Api.

• Testing mail code in Spring Boot application - Configuring the mail in Spring Boot does not differ much from configuring it in Spring Bootless application. But this article describes how simple it is to test that email submission is working as expected.

Spring Boot Actuator

• Spring Boot Actuator: custom endpoint with MVC layer on top of it - Spring Boot includes a number of built-in endpoints and you can also add your own. Adding custom endpoints with MVC layer on top of it is really easy.

Spring Boot Deployment on OpenShift

• Openshift: Build Spring Boot application on Wildfly 8.2.0 with Java 8 - Spring Boot can run with embedded servlet container like Tomcat or much faster Undertow, but it also can be deployed to a standalone application server. Spring Boot application can be also deployed to WildFly application server that is supported by OpenShift. Create a Spring Boot application from scratch and deploy it to WildFly on OpenShift.

• OpenShift DIY: Build Spring Boot / Undertow application with Gradle - This blog post illustrates the use of Spring Boot and Java 8 running on Undertow, that is supported as a lightweight alternative to Tomcat.

• Spring Boot / Java 8 / Tomcat 8 on Openshift with DIY - DIY cartridge is an experimental cartridge that provides a way to test unsupported languages on OpenShift. It provides a minimal, free-form scaffolding which leaves all details of the cartridge to the application developer. Learn how to use of Spring Boot / Java 8 / Tomcat 8 application with PostgreSQL service bound to it on Openshift.