Kotlin + SpringBoot JPA + MySQL- Save/retrieve Files/Images with @Lob annotation

kotlin-springboot-jpa-mysql-saveretrieve-filesimages-lob-annotation-feature-image

In the tutorial, JavaSampleApproach will show you how to create a SpringBoot Kotlin project that uses SpringJPA with @Lob annotation to save Files/Images to MySQL database.

I. Technologies

– Kotlin 1.2.20
– Apache Maven 3.5.2
– Spring Tool Suite – Version 3.9.0.RELEASE
– MySQL
– Spring Boot – 1.5.10.RELEASE

II. Goal

– We create a SpringBoot project to save files/images to MySQL database as below structure:

Kotlin Spring JPA save Files Images to MySQL - pre

Create MySQL table:

Kotlin Spring JPA save Files Images to MySQL - create mysql table

-> Run and check results:

Kotlin Spring JPA save Files Images to MySQL - result

Kotlin Spring JPA save Files Images to MySQL - goal

III. Practice

Step to do:
– Create SpringBoot Kotlin project
– Create data model
– Create JPA Repository
– Implement Client to save/retrieve files/images
– Configure JPA connection & MySQL script

1. Create SpringBoot Kotlin project

Using SpringToolSuite to create a SpringBoot project with dependencies:

2. Create data model

3. Create JPA Repository

4. Implement Client to save/retrieve files/images

5. Configure JPA connection & MySQL script
5.1 Configure connection info

– Open application.properties file, add connection info:

5.2 MySQL script

– Implement MySQL creating table script:

IV. Sourcecode

KotlinSpringBootSaveImage2MySQL

By grokonez | February 6, 2018.

Last updated on September 18, 2018.



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