Entendendo o Spring Framework na Prática

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Entendendo o Spring Framework na prática Felix Coutinho @ JavaxCE Abr/2023

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Objetivos

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E-commerce backend

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Pré-Workshop - requisitos ● Conhecimentos básico de Java e Web ● Java instalado (Java 11+) ● IDE Java (VSCode, IntelliJ, Eclipse)

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O que é um framework?

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Spring Framework Spring Boot Qual a diferença?

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Ecosistema Spring Spring Data Spring Security Spring Framework Spring Batch Spring Boot Spring Web Spring Cloud …muito mais.

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Workshop - E-commerce backend

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Spring Initializr start.spring.io

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Spring Boot (Starters/Dependências)

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Spring Web (Backend/Rest API)

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Spring Data (Repositórios)

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Dependency Injection/Injeção de Dependências IoC/Inversion of Control/Inversão de Controle

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Injeção de Dependências Image credit: https://toidicodedao.com/2015/11/03/dependency-injection-va-inversion-of-control-phan-1-dinh-nghia/

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Inversão de Controle new Class()

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CoC - Convention over Conﬁguration

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Spring Data Features ● find*( ) Convetion ● Like/Contains ● Projections ● By Example ● @Query ● … ● findByAttribute(Entity T) ● findByAttributeContaining(String attr) ● @Query("SELECT e FROM Entity") ● findOne(Entity T) ● EntityTO findByAttribute(Entity T) ● …

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Cross-cutting concerns

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● Logging ● Transactions ● Conﬁguration ● Security ● Values ● Metrics ● Health Cross-cutting Concerns Image credit: https://nljug.org/java-magazine/aspect-oriented-programming-met-spring-boot/

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Livros & Materiais https://spring.io/quickstart

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Felix Coutinho Java/Cloud Architect @ Home Depot Canada https://twitter.com/felixcoutinho https://dev.to/felixcoutinho https://www.linkedin.com/in/felixcoutinho/