Spring Boot: Developer

This 2-day course offers experience with Spring Boot and its major features, including auto-configuration, Actuator, Spring Boot testing framework and more. On completion, participants will have a foundation for creating enterprise and cloud-ready applications.

Please note that this course is a subset of the material in our 4-day Spring: Core Training course - there is no need to take both courses.  This course is recommended if you have a good working knowledge of Spring Basics (see Prerequisites) but are new to Spring Boot.

Intended Audience

Application developers who want to increase their understanding of Spring and Spring Boot and a focus on fundamentals.

Prerequisites

A good working knowledge on web application development using Java and an IDE (Eclipse, STS or IntelliJ).

Basic understanding of Spring: Java Config, component- scanning, Spring driven testing and Spring data-management (JdbcTemplate, @Transactional).

Experience using Java and build tools such as Maven or Gradle.

Objectives

By the end of the course, you should be able to meet the following objectives:

• Describe the benefits provided by Spring Boot
• Initialize a project using Spring Boot Starters
• Leverage Spring Boot's auto configuration features 
• Create simplified backing-store solutions using Spring Data JPA 
• Build a simple MVC application using Spring Boot, embedded Web Server and fat JARs or classic WARs
• Build a RESTful Web application 
• Use Spring Security to secure Web and REST endpoints 
• Enable and extend metrics and monitoring capabilities using Spring Boot actuator
• Leverage advance configuration capabilities 
• Utilize Spring Boot enhancements to testing

Course Outline

1 Introduction to Spring Essentials

• Why Spring
• Configuration using Spring
• Bean creation
• Data Management

2 Spring Boot Introduction

• Introduction to Spring Boot Features
• Value Proposition of Spring Boot
• Creating a simple Boot application using Spring Initializr website

3 Spring Boot Dependencies, Auto-configuration, and Runtime

• Dependency management using Spring Boot starters
• How auto-configuration works
• Configuration properties
• Overriding auto-configuration 
• Using CommandLineRunner

4 JPA with Spring and Spring Data

• Quick introduction to ORM with JPA
• Benefits of using Spring with JPA
• JPA configuration in Spring
• Configuring Spring JPA using Spring Boot
• Spring Data JPA dynamic repositories

5 Spring MVC Architecture and Overview

• Introduction to Spring MVC and request processing
• Controller method signatures
• Using @Controller, @RestController and @GetMapping annotations
• Configuring Spring MVC with Spring Boot
• Spring Boot packaging options, JAR or WAR

6 Rest with Spring MVC

• An introduction to the REST architectural style
• Controlling HTTP response codes with @ResponseStatus
• Implementing REST with Spring MVC, @RequestMapping, @RequestBody and @ResponseBody
• Spring MVC’s HttpMessageConverters and automatic content negotiation

7 Spring Security

• What problems does Spring Security solve?
• Configuring authentication
• Implementing authorization by intercepting URLs
• Authorization at the Java method level
• Understanding the Spring Security filter chain
• Spring security testing

8 Actuators, Metrics and Health Indicators

• Exposing Spring Boot Actuator endpoints
• Custom Metrics
• Health Indicators
• Creating custom Health Indicators
• External monitoring systems

9 Spring Boot Testing Enhancements 

• Spring Boot testing overview
• Integration testing using @SpringBootTest
• Web slice testing with MockMvc framework
• Slices to test different layers of the application