SpringBoot RestAPI Upload Excel file to MySQL/PostgreSQL

Tutorial: SpringBoot RestAPI Upload Excel file to MySQL – SpringBoot Upload/Import and Download/Export Excel files to MySQL

Creating SpringBoot RestAPIs to upload/import and export/download Excel files to databases: PostgreSQL or MySQL is one of the most common question in the development world. Going through the tutorial post, I explain details “How to read data from Excel Sheet and insert into Database table in Spring Boot RestAPIs with Upload/Download Excel functions” by step to step with coding and give you 100% running source code. What we will do?

– I draw full diagram architecture of SpringBoot Upload Download Excel files service.
– I implements how to Excel File service using poi-ooxml.
– I implement SpringBoot Upload Download files RestApis.
– I use Spring JPA to interact with database MySQL.
– I implement a global exception handling to deal with a big uploading file
– I use Ajax and Bootstrap to develop frontend for uploading and downloading excel files.

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SpringBoot + PostgreSQL CRUD using Spring JPA tutorial

– Example Integrate SpringBoot 2.x + PostgreSQL CRUD using Spring JPA tutorial

How to integrate SpringBoot and PostgreSQL? It is the one of most common questions for developers. So in the post, I will help you to try it with Spring JPA. Here is a to do list for the tutorial:

  • Overview of Project Structure
  • Create SpringBoot with Spring Data JPA and PostgreSQL dependencies
  • Configuration SpringBoot to connect to PostgreSQL
  • Define a data model to map with table’s columns in PostgreSQL database
  • Define a JPA Repository to do CRUD operations
  • Use CommandLineRunner to excute above JPA Repository APIs: save, retrieve, update, detele entities

To do the tutorial, you need prepare Java >= 1.8, Spring Tool Suite in local computer for development.

Let’s go !
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