Toutes nos formations sont désormais disponibles en "Live Virtual classes". Contactez-nous pour plus d’informations : formation@oxiane.luToutes nos formations sont désormais disponibles en "Live Virtual classes". Contactez-nous pour plus d’informations : formation@oxiane.lu

Spring Core

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Spring framework has become an essential part of Java software development. The Spring ecosystem, although made more accessible with the Spring Boot module, is now very vast and constitutes a galaxy of modules (MVC, Rest, Data, Batch, Cloud...).

However, all these modules are based on the same fundamental core, the Spring Core module, and relatively simple but powerful concepts.

This training is intended for anyone who wants to acquire the fundamental Spring basics to integrate a project, whether it is old (configured in XML), in migration or modern (zero XML configuration).

The emphasis is on putting the concepts into practice through numerous exercises. This training is offered over 2 days but can be extended to 3 days for people new to Java and object-oriented design (contact the formation@oxiane.lu team for more information).

This training corresponds to the first two days of our more complete 4-day Spring Essentials training and is the prerequisite for other training courses such as Spring Boot.

1300 € HT 2 jours JF-SPRC

Prochaines sessions

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Programme

Introduction

Historical background
Motivations
Inversion of control
Control of dependencies
Direct control of dependencies
Dependency injection

Lightweight container

Configuration metadata
Using the container
Benefits of dependency injection
Lab 1: Experimenting with an object assembly
What is Spring used for?
Framework evolutions

Introducing the IoC container

Spring configuration file
XML schemas and namespaces
Towards annotations
BeanFactory and ApplicationContext
Setting up the application context

Beans declaration

Example of assembly
Example of bean declaration
Beans declaration without XML
@Configuration annotation
Lab 2: Implementing Spring

Injection and instantiation of beans

Injection by setter
Injection (instanciation) by constructor
Instantiation by static “factory method”
Instantiation by “factory bean”
FactoryBean interface
Anonymous bean (created on the fly)
Lazy instantiation
Lab 3: Beans instanciation and injection

Autowiring

Autowiring modes
@Autowired annotation
Autowiring candidates
Reducing the number of autowiring candidates
@Qualify specific
Lab 4: Experimenting with autowiring

Other injections

Injecting collections
@Autowired with collections
Optional/required dependency
Other injection annotations
Lab 5: Collection injection and optional dependency
Value injection and @Value
Other sources of values
Spring Expression Language (SpEL)
Syntax elements of SpEL
Lab 6: Value injection and experimenting SpEL

Decomposing configuration

@Import, @ImportResource
Other particularities of XML configurations

Beans scope

“prototype” scope
Other scopes
Lab 7: Understanding scopes

Declaring beans with annotation

Discovery of @Component
Stereotyped components
Annotations
Lab 8: Beans declaration with annotation

Environment profiles

Environment profiles: creation
Environment profiles: activation
@Conditional annotation
Lab 9: Using environment profiles (conditional bean)

Beans life cycle

Beans initialization and destruction
“init-method” and “destroy-method”
@PostConstruct and @PreDestroy
“Aware” interfaces
BeanPostProcessor interface
BeanPostProcessor declaration
Life cycle in summary
Lab 10: Understanding beans life cycle

Application contexts

ApplicationContext implementations
Resources
Retrieving resources
Using resources
Internationalization
Lab 11: Implementing resources

Application context and events

Example of an application event
Lab 12: implementing application events

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