Spring: Core Training

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

• 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 application development with Spring Boot
• Spring Boot auto-configuration, starters and properties
• Build a simple REST application using Spring Boot, embedded Web Server and fat JARs or classic WARs
• Implementing REST client applications using RestTemplate
• Utilize Spring Boot enhancements to testing
• Spring Security
• Enable and extend metrics and monitoring capabilities using Spring Boot actuator

1  Spring Overview

• What is the Spring Framework?
• The DI Container
• The Spring Framework History and EcoSystem

2  Java Configuration

• 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

3  More Java Configuration

• External properties & Property sources
• Environment abstraction
• Using bean profiles
• Spring Expression Language (SpEL)

4   Annotation and Component Scanning

• Component scanning
• Autowiring using @Autowired
• Java configuration versus annotations, mixing.
• Lifecycle annotations: @PostConstruct and @PreDestroy
• Stereotypes and meta-annotations

5  Inside the Spring Container

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

6  Introducing Aspect-oriented programming

• What problems does AOP solve?
• Defining pointcut expressions
• Implementing various types of advice

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

8  JDBC Simplification with JdbcTemplate

• How Spring integrates with existing data access technologies
• Spring‘s JdbcTemplate
• DataAccessException hierarchy

9  Transaction Management with Spring

• Transaction overview
• Transaction management with Spring
• Transaction propagation and rollback rules
• Transactions and integration testing

10  Spring Boot Feature Introduction

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

11  Spring Boot – A closer look

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

12  Spring Boot – Spring Data JPA

• 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

13  Web Applications with Spring Boot

• 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

14  RESful Application with Spring Boot

• 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

15  Spring Boot Testing

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

16  Securing REST Application with 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

17  Actuators, Metrics and Health Indicators

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

• Some developer experience using Java, an IDE (Eclipse, STS or IntelliJ) and build tools such as Maven or Gradle