Spring JPA/Hibernate One-to-Many Association + PostgreSQL | SpringBoot CRUD RestAPIs 
Tags: springboot, postgres, onetomany
Published: 2021-04-18 14:55:04

https://grokonez.com/spring-framework/spring-boot/spring-jpa-hibernate-one-to-many-association-postgresql-springboot-crud-restapis-post-get-put-delete-example

Spring JPA/Hibernate One-to-Many Association + PostgreSQL | SpringBoot CRUD RestAPIs Post/Get/Put/Delete example

In the tutorial, we show how to expose CRUD RestAPIs <code>Post/Get/Put/Delete</code> to interact with Hibernate Spring JPA One-to-Many association models using SpringBoot and PostgreSQL database.

Previous post:
- <a href="https://grokonez.com/spring-framework/spring-data/springboot-hibernate-spring-jpa-one-to-one-association-postgresql-crud-restapis-post-get-put-delete">Expose CRUD RestAPIs Spring JPA One-to-One Association</a>

Related articles:
– <a href="https://grokonez.com/spring-framework/spring-boot/spring-jpa-many-to-many">Spring JPA – Many to Many relationship</a>
– <a href="https://grokonez.com/spring-framework/spring-data/configure-spring-jpa-one-one-relationship-springboot">How to configure Spring JPA One to One Relationship – SpringBoot</a>
– <a href="https://grokonez.com/spring-framework/spring-boot/spring-data-rest-create-restapis-jpa-one-many-relational-entities-springboot-mysql-hal-browser">Spring Data Rest – JPA One-to-Many relational entities | SpringBoot + MySql + HAL Browser</a>
– <a href="https://grokonez.com/spring-framework/spring-data/kotlin-springjpa-hibernate-one-many-relationship">Kotlin SpringJPA Hibernate One-To-Many relationship</a>

Related pages:
<ul>
<li><a href="https://grokonez.com/spring-framework-tutorial/spring-boot">SpringBoot Tutorial</a></li>
</ul>

<!--more-->
<h2>Technologies</h2>
<ul>
<li>Java 8</li>
<li>Maven 3.5.4</li>
<li>SpringToolSuite version 3.9.4.RELEASE</li>
<li>SpringBoot 2.0.4.RELEASE</li>
</ul>
<h2>Demo</h2>
<iframe width="853" height="480" src="https://www.youtube.com/embed/DUnPUxrff84?rel=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
<h2>Overview</h2>
We have 2 models <code>Student</code> & <code>Assignment</code> with One-to-Many association relationship:

<img src="https://grokonez.com/wp-content/uploads/2018/08/jpa-hibernate-one-to-many-spring-boot-rest-apis-spring-jpa-one-to-one-postgresql-association-relationship.png" alt="jpa-hibernate-one-to-many-spring-boot-rest-apis-spring-jpa-one-to-many-postgresql-association-relationship" width="492" height="264" class="alignnone size-full wp-image-14384" />

We create a SpringBoot project as below:

<img src="https://grokonez.com/wp-content/uploads/2018/08/jpa-hibernate-one-to-many-spring-boot-rest-apis-spring-jpa-one-to-one-postgresql-architecture.png" alt="jpa-hibernate-one-to-many-spring-boot-rest-apis-spring-jpa-one-to-many-postgresql-architecture" width="701" height="325" class="alignnone size-full wp-image-14385" />

<img src="https://grokonez.com/wp-content/uploads/2018/08/jpa-hibernate-one-to-many-spring-boot-rest-apis-spring-jpa-one-to-one-postgresql-project-structure.png" alt="jpa-hibernate-one-to-many-spring-boot-rest-apis-spring-jpa-one-to-many-postgresql-project-structure" width="353" height="487" class="alignnone size-full wp-image-14386" />

Hibernate JPA configuration for 2 models <code>Student</code> & <code>Assignment</code>:

More at:

https://grokonez.com/spring-framework/spring-boot/spring-jpa-hibernate-one-to-many-association-postgresql-springboot-crud-restapis-post-get-put-delete-example

Spring JPA/Hibernate One-to-Many Association + PostgreSQL | SpringBoot CRUD RestAPIs Post/Get/Put/Delete example