Spring Core

Course Description

Course Overview:

This course offers hands-on experience with the major features of Spring and Spring Boot, which includes configuration, data access, REST, AOP, auto-configuration, actuator, security, and Spring testing framework to build enterprise and microservices applications. On completion, participants will have a foundation for creating enterprise and cloud-ready applications.

Course Objectives:

Upon completion of this course, participants will understand how to implement the following:

Spring configuration using Java Configuration and Annotations
Aspect oriented programming with Spring
Testing Spring applications using JUnit 5
Spring Data Access – JDBC, JPA and Spring Data
Spring Transaction Management
Simplifying applications with Spring Boot
Spring Boot auto-configuration, starters and properties
Build a simple MVC application using Spring Boot, embedded Web Server and fat JARs or classic WARs
Implementing REST with Spring MVC and RestTemplate
Spring Security
Enable and extend metrics and monitoring capabilities using Spring Boot actuator
Utilize Spring Boot enhancements to testing

Pre-requisites:

Good understanding of web-application development using Java, an IDE (Eclipse, STS or IntelliJ) and a Servlet engine such as Tomcat or Jetty, specific Java concepts (annotations and lambdas) and dependency management using Maven or Gradle.
Java development experience
Experience with Spring Framework (Spring Core, Spring MVC, Spring Security and Spring REST)
Experience with Maven or Gradle

Target Audience:

Application developers who want to increase their understanding of Spring with hands-on experience and a focus on fundamentals.
Java Web Application Developers

Course Duration:

35 hours – 5 days

Course Content:

MODULE 1: INTRODUCTION TO SPRING

Java configuration and the Spring application context
@Configuration and @Bean annotations
@Import: working with multiple configuration files Defining bean scopes
Launching a Spring Application and obtaining Beans

MODULE 2: SPRING JAVA CONFIGURATION: A DEEPER LOOK

External properties & Property sources
Environment abstraction
Using bean profiles
Spring Expression Language (SpEL)
How it Works: Inheritance based proxies

MODULE 3: ANNOTATION-BASED DEPENDENCY INJECTION

Autowiring and component scanning
Java configuration versus annotations, mixing.
Lifecycle annotations: @PostConstruct and @PreDestroy
Stereotypes and meta-annotations

MODULE 4: FACTORY PATTERN IN SPRING

Using Spring FactoryBeans

MODULE 5: ADVANCED SPRING: HOW DOES SPRING WORK INTERNALLY?

The Spring Bean Lifecycle

The BeanFactoryPostProcessor interception point
The BeanPostProcessor interception point
Spring Bean Proxies
@Bean method return types

MODULE 6: ASPECT-ORIENTED PROGRAMMING

What problems does AOP solve?
Differences between Spring AOP and AspectJ
Defining pointcut expressions
Implementing an advice: @Around, @Before, @After

MODULE 7: TESTING A SPRING-BASED APPLICATION

Spring and Test Driven Development
Spring 5 integration testing with JUnit 5
Application context caching and the @DirtiesContext annotation
Profile selection with @ActiveProfiles
Easy test data setup with @Sql

MODULE 8: DATA ACCESS AND JDBC WITH SPRING

How Spring integrates with existing data access technologies
DataAccessException hierarchy
Implementing caching using @Cacheable Embedded databases for testing
Spring‘s JdbcTemplate

MODULE 9: DATABASE TRANSACTIONS WITH SPRING

Transactions overview
Transaction management with Spring
Isolation levels, transaction propagation and rollback rules
Transactions and integration testing

MODULE 10: SPRING BOOT INTRODUCTION

Introduction to Spring Boot
Value Proposition of Spring Boot
Creating a simple Boot application using Spring Initializer web-site

MODULE 11: SPRING BOOT DEPENDENCIES, AUTO-CONFIGURATION AND RUNTIME

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

MODULE 12: 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

MODULE 13: 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

MODULE 14: 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

MODULE 15: SPRING SECURITY