Spring Boot with Kotlin Training in Finland

We can host this training at your preferred location. Contact us!

Note, this course is also available in Java. Or why not combine this with content from our Kotlin Language course.

This course covers all aspects of application development using the Spring family of frameworks. By the end of the delivery delegates will be able to create and customise projects via the Spring Initializr, assemble trees of components via Dependency Injection and AOP, write RESTful services using MVC and WebFlux and access databases using Spring Data. They will also be able to add metrics via Actuator and basic authentication via Spring Security.

Agile development will be continuously empathised during the delivery, with delegates writing tests for their components via both the standard JUnit extensions and the Spring MVC test framework. The course is fully up to date with the new features introduced in Spring 5 and Spring Boot 2 including support for Java 9 types and the Kotlin language.

Delegates must be confident Kotlin developers - the course can be extended with a content from out Kotlin language course to give a complete package. They should also have a basic understanding of the architecture of RESTful services and Single Page Applications.

Write RESTful services in Kotlin via Spring Boot, MVC and WebFlux
Write unit tests for Spring including using automatic mock injection
Use Spring Boot starters for data access and security
Leverage Kotlin to simplify building Spring Boot applications

Introduction to Spring

Weaknesses in the original JEE architecture
Why Spring arose as a cure for the maladies of JEE
Configuring Spring via XML, YAML, Groovy and Kotlin
How to choose between the configuration options
Springs growth from library to framework to ecosystem
Choosing between the Spring platform and JEE8

Annotation Based Dependency Injection in Spring Core

The role of the ApplicationContext in Spring DI
Different ways of providing ‘bean wiring’ to the context object
Understanding scopes and selecting the correct scope for a bean
Using @Autowired to perform autowiring by type
Using @Autowired and @Qualifier for autowiring by name
Using @Resource as an alternative means of autowiring by name
Declaring beans using @Component, @Service and @Controller
Creating bean provider methods via @Configuration classes
A detailed introduction to Spring Expression Language (Spring EL)
Populating fields via Spring EL using @Value

Other Forms of Dependency Injection in Spring Core

The XML based Bean Description Language and Schema Extensions
The Groovy and Kotlin based Domain Specific Languages
Support for standard properties files and YAML

Unit Testing Spring Beans

How a DI container aids unit and integration testing
Configuring the Spring specific test runner for JUnit
Injecting dependencies into JUnit tests via Spring
Creating configurations for different testing scenarios
Combining mocking frameworks like Mockito with Spring

Introducing Aspect Oriented Development

The notion of cross-cutting concerns (aka Aspects)
Key terms (Aspects, Advice, Pointcuts, Weaving etc…)
A detailed guide to AspectJ Pointcut Expressions
Support for AOP in Spring Core via auto-proxying
Why only method calls can be intercepted in Spring
Declaring Advice and Pointcuts using annotations
Understanding the five different kinds of advice
How AOP is used within Spring Security and Transactions

Introduction to Spring Boot

The need for a meta-framework to manage Spring itself
Creating Spring Boot projects via the ‘Spring Initializr’
How Spring Boot configures other parts of Spring as modules
Customizing the Maven / Gradle build file to manage dependencies
Options for overriding the default configurations in Spring Boot
Building and testing command line applications in Spring Boot

Using Spring MVC within Spring Boot

How MVC evolved from a Web Framework to a Microservices Platform
MVC Design (Dispatcher Servlet, Handler Mappings and View Resolvers)
Registering controllers via annotations and component scanning
The difference between @Controller and @RestController
Deploying MVC Apps as Microservices via Spring Boot and Cloud Services
Overriding the default configurations and registering JEE components

Basic Configuration of Spring Controllers

Associating controller beans with URL patterns
Mapping methods to HTTP verbs (GET, POST, PUT etc…)
Triggering methods based on parameters and headers
Passing objects from the Servlet API into methods
Injecting individual parameters and populating JavaBeans
Injecting information from HTTP headers and cookies
Using path variables to inject information from the URL
Marshalling the body of the request into JSON and/or XML
Customizing XML marshalling via the JAXB annotations
Cusomizing JSON marshalling via Jackson annotations

Advanced Configuration of Spring Controllers

Wrapping the response type in ResponseEntity
Creating ResponseEntity objects via the builder API
Customizing the response code and manipulating HTTP headers
Validating input via the JSR-303 Bean Validation annotations
Registering your own validators for cross-field validations
Using the Optional type for request routing
Defining model attributes and exception handler methods
Redirecting output to server pages via view resolvers
Configuring Thymeleaf as a sample server page library

Writing Tests and Clients for Spring Controllers

The spring-test module and TestContext framework
Creating a Web Application Context within a JUnit test
Sending requests to controllers via the Dispatcher Servlet
Using the fluent API to specify requests and check responses
Writing clients for RESTful Services via the JAX-RS Client API
Writing clients for RESTful Services via the Spring RestTemplate

Enhancements in Spring 5 and Spring Boot 2

Support for Functional and Reactive Programming in Spring 5
The new ‘WebFlux’ model for services in Spring Boot 2
Creating WebFlux based services via MVC annotations
Creating WebFlux services fia the functional model
Using the Kotlin based DSL for functional services

Securing and Monitoring Spring Microservices

Combining Spring Security with Spring Boot Applications
Different options for adding authentication to endpoints
Using Spring Actuator to collect metrics from running services
Customizing and extending the built in metrics and health checks

Database Access with Spring Data

The famously intractable ‘Object Relational Mismatch’
Review of ORM frameworks such as Hibernate and the JPA
How Spring Data simplifies the creation of repositories
Customizing and extending your repository components

Spring Boot with Kotlin Training Course in Finland

Finland is a country located in northern Europe. Helsinki is the capital and largest city of the country. The majority of the people are Finns but there is also a small Lapp population in Lapland, where the country is famous for the Northern Lights. Finland's national languages are Finnish and Swedish.

Known for its vast forests, lakes, and natural beauty, Finland is one of the world's largest producers of forest products, such as paper, pulp, and lumber. One of the world's largest sea fortresses Suomenlinna, Rovaniemi with the "White Nights", dogsled safaris and of course the Northern Lights are what makes Finland so popular for tourists. Finland is one of the best places in the world to see the Northern Lights and attracts millions of tourists during its seasons.

Finland is home to a thriving technology industry and is widely recognized as one of the world's leading technology hubs. Companies such as Nokia and Rovio (creator of the popular game Angry Birds) are based in Finland. Some of the key factors that have contributed to Finland's success in technology include; strong investment in research and development, a highly educated workforce and fundings.

Finland has a strong educational system, and is widely regarded as one of the world's most literate countries. In fact, Finland's literacy rate is one of the highest in the world, and its students consistently perform well in international tests of math and reading ability.

Also, as a pioneer in environmental sustainability, Finland is known for its efforts to reduce its carbon footprint and promote clean energy. This Nordic country is also famous for its unique and distinctive cultural heritage, including its traditional folk music and its elaborate traditional costumes.

Helsinki, Finland's capital city, is the country's business center. Helsinki is Finland's largest city, and it is home to many of the country's major corporations and organizations, including many of the country's leading technology firms. The city is also a commercial, trade, and financial center, as well as one of the busiest ports in the Nordic region.

Take advantage of our diverse IT course offerings, spanning programming, software development, business skills, data science, cybersecurity, cloud computing and virtualization. Our knowledgeable instructors will provide you with practical training and industry insights, delivered directly to your chosen venue in Finland.