Introduction to Spring 5, Spring Boot, and Spring REST

Spring 5 provides an evolutionary advance of Spring’s powerful capabilities. This course introduces the many Spring Core capabilities, as well as providing guidelines on when and how to use them. It also goes into considerable depth on Spring Boot for dependency management and auto-configuration, as well as Spring REST for creating RESTful resources.

This course has been completely revised to utilize Spring Boot's easy configuration and auto-configuration wherever possible. "Classic" Spring configuration (usually more verbose and complicated) is optionally covered in abbreviated form.

The course starts with in-depth coverage of Spring’s Core module to reduce coupling and increase the flexibility, ease of maintenance, and testing of your applications. It goes on to cover many of the most important capabilities of Spring, including easing configuration with Spring Boot, integrating JPA persistence layers with Spring and Spring Data, and using Spring’s declarative transaction capabilities.

The course includes a solid introduction to Spring REST, and coverage of building RESTful resources. It also covers many of the details of Spring Boot, including how to create Boot-based POMs (maven) for simplified dependency management, customizing Boot behavior, and understanding/managing Boot’s auto-configuration.

This course is hands on with labs to reinforce all the important concepts. It will enable you to build working Spring applications and give you an understanding of the important concepts and technology in a very short time.

Prerequisites

Working knowledge of Java programming, including use of inheritance, interfaces, and exceptions

Course Outline

Session 1:  Introduction to Spring

Overview of Spring Technology

• Motivation for Spring, Spring Architecture
• The Spring Framework
• maven and Spring

Spring Introduction

• Declaring and Managing Beans
• ApplicationContexts - The Spring Container
• XML and @Component/@Named Config

Dependencies and Dependency Injection (DI)

• Examining Dependencies
• Dependency Inversion / Dependency Injection (DI)
• DI in Spring - XML and @Autowired

Spring Boot Quickstart

- Session 2:  Configuration in Depth

Java Based Configuration (@Configuration)

• Overview, @Configuration, @Bean
• Dependency Injection
• Resolving Dependencies

Integrating Configuration Types

• XML and @Component Pros/Cons
• @Configuration Pros/Cons
• Choosing a Configuration Style
• Integrating with @Import and <import>

Bean Scope and Lifecycle

• Singleton, Prototype, and Other Scopes
• Configuring Scope
• Bean Lifecycle / Callbacks

Session 3:  Spring Boot Overview

Spring Boot Overview

Spring POMs with Boot Parents

Spring Boot Starters

SpringApplication – Apps With main()

CommandLineRunner and ApplicationRunner

Working with Properties

• Boot Property Files
• Using Application Properties
• Customizing Behavior with Boot Properties

Session 4:  Spring Testing

Testing and JUnit 5 Overview

• Writing Tests - Test Classes, asserts, Naming Conventions
• Running Tests - IDE, maven, ...
• Test Fixtures - setup and teardown

Spring TestContext Framework

• Overview
• Configuration
• Running Tests

Session 5:  Database Access with Spring/Boot

Overview of Spring/Boot database support

• DataSources, Boot Auto-Configuration, and Custom Configuration
• Boot - Embedded Database

Using Spring/Boot with JPA

• Spring Boot Auto-Configuration and Scanning
• Customizing the Configuration
• Creating a JPA Repository/DAO Bean - @PersistenceUnit, @PersistenceContext

Spring Data Overview

• Overview and Architecture
• Configuring Spring Data
• Repositories and JPA Repositories
• Using CrudRepository

Using Spring Data

• Naming Conventions for Querying
• Creating more Complex Queries
• Query Configuration

[Optional] Configuration Without Boot

• Managing the EntityManager (EM)
• LocalContainerEntityManagerFactoryBean and Container-managed EMs
• JEE and JNDI Lookup of the EM
• Configuration and Vendor Adaptors

Session 6:  Spring Transaction (TX) Management

Overview

Declarative TX Management (REQUIRED, etc.)

TX Scope and Propagation

Configuration and Boot Auto-Configuration

Pointcut-based Configuration of Transactions

Session 7: RESTful Services with Spring

REST Overview and Principles

DispatcherServlet - Boot Auto-Config and Customization

Requests and Responses - GET, POST, PUT, DELETE

Spring's REST API

• Spring support for REST
• @RequestMapping/@PathVariable, @RequestBody, @ResponseBody
• URI Templates and @PathVariable
• Controllers with @RestController

Ajax Overview

Session 8: Working with JSON and XML

Generating JSON

• JSON Overview
• JSON Representations for Resources
• Message Converters

[Optional] Generating XML

• JAXB and Jackson Message Converters for XML
• JAXB / @XmlRootElement

Content Negotiation

Session 9: Java Clients for RESTful Services

• Client Requirements and Spring's RestTemplate
• getForObject() / getForEntity()
• Other RestTemplate Methods
• Accessing Headers / exchange()

Session 10: Common REST Patterns

• GET: Read
• POST: Create
• PUT: Update
• DELETE: Delete
• Programming on server side, and client side (with RestTemplate)

Session 11:  Boot Configuration and Customization

• Logging and its Configuration
• Profiles
• Other Configuration

Session 12: Spring Boot Web/Security

• Spring Boot Web
• Boot's Embedded Servers
• Classic Spring MVC Configuration
• Spring Boot Security
• Spring Boot Data REST

Session 13:  Additional Spring/Boot Features

• Updates to Spring Core
• WebFlux / Reactive Web Framework
• Boot Actuator

Notes:

HSG courses are taught by the experienced instructors who are proven experts in their field. Our instructors are highly knowledgeable, friendly, reliable and inspiring. They speak and teach industry's best practices and often customize classes to meet individual needs. 

Students are encouraged to ask questions and participate in discussions and training-labs.