Excel File – Upload/Download using Apache POI + SpringBoot RestAPIs + Spring JPA + Thymeleaf to MySQL

upload-excel-file-download-excel-file-spring-boot-spring-jpa-mysql---feature-image-1

In the post, Grokonez guides how to Upload/Download Excel Files to MySQL database using SpringBoot + Spring JPA with Apache POI library

Technologies

– Spring Boot – 2.0.6.RELEASE
– Spring JPA
– Thymeleaf
– MySQL
– Apache POI

Goal

We create a SpringBoot project as below:

upload-excel-file-download-excel-file-spring-boot-spring-jpa-mysql---project-structure

-> Excel File:

upload-excel-file-download-excel-file-spring-boot-spring-jpa-mysql---excel-file

-> Results:

upload-excel-file-download-excel-file-spring-boot-spring-jpa-mysql---front-end

-> MySQL:

upload-excel-file-download-excel-file-spring-boot-spring-jpa-mysql---customer-tables

upload-excel-file-download-excel-file-spring-boot-spring-jpa-mysql---mysql-records

Practice

Create SpringBoot project

We create a SpringBoot project with below dependencies:

Customer Model

– Create Customer.java model:

JPA Repository

– Create CustomerRepository.java:

Excel Utils

– Implement Excel Utils:

RestAPIs Controller
Upload Controller

– Implement UploadFileController.java:

Download Controller

– Implement DownloadFileController.java file:

Viewers

– Implement upload/download viewers:

Application Config

– In application.properties, add configuration:

SourceCode

– Excel File: customers.xlsx
– SourceCode: SpringBootUploadDownloadExcelFile

By grokonez | February 18, 2019.



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