Lab#SB02-1: `JPA` Relationships

Spring Boot JPA Relationships

Spring-Boot

lab

Spring Boot

Author

albertprofe

Published

Tuesday, June 1, 2021

Modified

Tuesday, October 14, 2025

Welcome to the cifojava2022-3 wiki!

1 Spring Boot Projects

Name	Type	Description	Link
Library0	Server	Basic Spring Boot Project	Link Repo
Library1	Server-Rest	API Rest Book `CRUD` with Postman/Swagger	Link Repo
Library2	Server-Rest	API Rest Author-Book `@OneToMany` `@ManyToOne` `CRUD` with Swagger	Link Repo
Library3	Server	Library-Book `@ManyToMany` `@OneToOne` `CRUD`	Link Repo
Library4	Server-Rest	API Rest Library-Book-Author `@ManyToMany` `@OneToMany` `CRUD` with Swagger and Inherence	Link Repo
Library5	Server-Web	`ThymeLeaf` Web Project	Link Repo
Library6	Server-Web	API Rest Book `CRUD` with Postman/Swagger and `Pageable`	Link Repo

1.1 Basic Spring Boot project

Preliminary works:
- Create project on Spring Init
- Images, step-by-step to create project
- Lombok to make entities simplier
- Java-Faker to create entities
- Be careful with devtools!! You must go to settings and mark it, CTRL+ALT+S on Advanced Settings: Allow Auto-make
- Very simple project: no database, @BookService with an ArrayList<Book> books where books are stored
- @RestController and @Controller to publish JSON data and an HTML web with Thymeleaf
version 1.0 : spring boot executions, api REST and web
version 2.0 : just some little modifications to explain what th: is

1.2 API Rest Book `CRUD` with Postman/Swagger

Base project:
- POM
- API REST Read CRUD
- DataBase H2
- Application.properties
- Command Line Runner with methods to test
- Postman to test API REST, Postman web
- @Entity, @RestController, @Service, @CrudRepository JPA 2.0, @Component
Repo Code GitHub
Library1 Documentation

1.3 API Rest Author-Book `@OneToMany` `CRUD` with Swagger

Base project:
- Library1
- Two entities related @OneToMany, that is, 1:n
Library2 Documentation
Repo

1.4 Library-Book `@ManyToMany` and `@OneToOne` `CRUD`

Base project:
- Library2
- Two/Three entities related @ManyToMany, that is, n:m and @OneToOne 1:1
Library3 Documentation
Repo GitHub Code

1.5 API Rest Library-Book-Author `@ManyToMany` `@OneToMany` `CRUD` with Swagger and Inherence

Base project:
- Library2 and Library3
- Inherence and Interficies
- Audit and JavaFaker
- JPQL
- Batch operations and Pagination
Library4 Documentation
Repo GitHub Code

1.6 `ThymeLeaf` Web Project

Base project:
- Library
- Templates HTML Thymeleaf, Templates Engine
- @Controller instead of @RestController
Library5 Documentation
Repo GitHub Code

1.7 `Pagination` ThymeLeaf-Rest Web Project

Base project:
- Library
- Templates HTML Thymeleaf, Templates Engine
- @RestController
- Pagination and Sorting
Library6 Documentation
Repo GitHub Code