HARTMANN software group

Introduction to Spring 6, Spring Boot 3, and Spring REST Training in Somerville

Enroll in or hire us to teach our Introduction to Spring 6, Spring Boot 3, and Spring REST class in Somerville, Massachusetts by calling us @303.377.6176. Like all HSG classes, Introduction to Spring 6, Spring Boot 3, and Spring REST may be offered either onsite or via instructor led virtual training. Consider looking at our public training schedule to see if it is scheduled: Public Training Classes
Provided there are enough attendees, Introduction to Spring 6, Spring Boot 3, and Spring REST may be taught at one of our local training facilities.
We offer private customized training for groups of 3 or more attendees.
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Course Description

  

The 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 using Spring Boot for dependency management and auto-configuration, as well as Spring REST for creating RESTful resources. It utilizes 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.

Course Length: 5 Days
Course Tuition: $2090 (US)

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:  Intro to Spring Boot
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
Jakarta EE 9 Baseline
WebFlux / Reactive Web Framework
Boot Actuator

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Java Programming Uses & Stats

Java Programming is Used For:
Android & IOS Development Software Products Video Games Desktop GUI's
Difficulty
Popularity
Year Created
1995
Pros

Most Commonly Used: 
According to Oracle, three billion devices run on Java.  And, because of its real-world applications, it consistently ranks at the top of the TIOBE Programming Community Index. 

Great Career Choice: 
Some of the fastest-growing salaries in the U.S. in 2018 are for Java developers.  (Glassdoor)  

Android Apps Development:
Developers predominatly use their Java skills in building apps for Google's Android. The Android platform is the number one mobile paltform in the world

It Can Run On Any Platform:
Java can compile on Windows and run the same compiled file on Linux, Windows and Mac.

Great Supporting IDE's:
Over the years, coding in Java has become simpler with the introduction of open source development tools, i.e. Eclipse and NetBeans that use Java capabilities for debugging.  
 
Cons

Uses a Lot of Memory:
Performance can be significantly slower with Java and more memory-consuming than natively compiled languages such as C or C++.

Difficulty in Learning: 
Learning Java can be a bit challenging if you are a beginner.  However, once you get the hang of Object Oriented Programming and a decent grasp of the syntax, you will be well on your way.

Slow Start Up Times:
There is quite a bit of one-time initialization done by JDK classes before compiling as well as loading classes and verification (making sure code doesn't do evil things, all of which takes longer that some other languages such as C. 

Verbose and Complex Code:
Long, over-complicated sentences make code less readable and scannable. Compare to let's say Python, we can see how clear Python code appears: It doesn’t require semicolons; uses “and,” “or,” and “not” as operators instead of Java’s “&&,” “||,” and “!”; and generally has fewer bells and whistles such as parentheses or curly braces.

Commercial License Cost:
Companies have to prepare for the changes that Oracle will institute in 2019 . Today, the current version of Java is free and available for redistribution for general purpose computing. However, If you are a DEVELOPER, Oracle recommends you review the roadmap information for Java SE 8 and beyond and take appropriate action depending on the type of application you develop and your distribution mode.
Java Programming Job Market
Average Salary
$102,000
Job Count
26,856
Top Job Locations

New York City 
San Jose
Washington D.C, 
Complimentary Skills to have along with Java Programming

- If you are an experienced Java developer, learning a complimentary language to Java should come much more naturally.  As an example JetBrains recently created the Kotlin programming language which is officially supported by Google for mobile development.  Kotlin compiles to Java bytecode and runs on the JVM; it's purported to address many of Java's shortcomings...

Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.