Excel File – Download from SpringBoot RestAPI + Apache POI + MySQL

spring-boot-download-excel-file-restapi-mysql-spring-jpa-apache.poi-excel-feature-image

In the tutorial, we show you how to create a SpringBoot RestAPIs application that uses Spring JPA to get data from MySQL records and uses Apache POI library to write data to a Excel file.

Related posts:
Java – How to read/write Excel file with Apache POI
How to use Spring JPA MySQL | Spring Boot
SpringBoot – Upload/Download MultipartFile to FileSystem – Bootstrap 4 + JQuery Ajax

Technologies

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

Practice

Project Structure ->

spring-boot-download-excel-file-restapi-mysql-spring-jpa-apache.poi-project-structure

Create SpringBoot project

Use SpringToolSuite to create a SpringBoot project with below dependencies:

Customer Model

Customer.java ->

JPA Customer Repository

CustomerRepository.java ->

Implement Excel Generator

ExcelGenerator.java ->

Implement RestAPI Controller

CustomerExcelDownloadRestAPI.java ->

Implement Download View

– Create ViewController.java ->

– Create .html view home.html ->

Initial Customers

– In main class, we use CommandLineRunner to init Customer’s records:

Database Configuration

application.properties ->

Run & Check Results

Run the SpringBoot project,

-> MySQL’s records:

spring-boot-download-excel-file-restapi-mysql-spring-jpa-apache.poi-mysql-tables

-> Excel Downloaded File:

spring-boot-download-excel-file-restapi-mysql-spring-jpa-apache.poi-view

spring-boot-download-excel-file-restapi-mysql-spring-jpa-apache.poi-network-logs

spring-boot-download-excel-file-restapi-mysql-spring-jpa-apache.poi-excel-downloaded-file

SourceCode

SpringJpaExcelDownloader

By grokonez | October 18, 2018.



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