Java: Uploading and Downloading Files from the Database using Spring Boot

In this video we will create a Spring MVC project using Spring Boot and demonstrate how to upload and download documents to and from a backend H2 database. You can swap the database with another one like MySQL, Oracle etc easily adding relevant dependency and properties.
You can download the source code at the following github url:

[jasonaraosfuentes]

If someone has problems understanding this line:


This means the directory where you will save your files. This path in your case will be where you are executing your project, for example, if your project is in the folder "projectFolder", that means you probably want to upload your files inside of that "projectFolder". So the steps will be:

Create inside your "project folder" a new folder that you will use to save your uploaded files. In the case of the instructor, his project folder was docs and he created an "h2 database" named "dev-db" inside that folder (that's why he use Probably when you started this tutorial you don't have that doc folder created inside your "project folder", so you need to create it or create another folder named for example "files" and use something like this:



Where ./files/dev-db means = In my project folder, enter to the folder "files" and create the mini database "dev-db.

With this modification (and having previously h2 database installed from its official web page ) all the program explained in this tutorial will work.

I hope this helps.

[raghunathdas]

What a great explanation covering everything in very short time.. Thank you sir

[harshvardhan]

This was the best and simplest explanation

[sivareddy]

Wow❤❤❤❤❤ you are super sir this helps me 😮

[ravikishore]

Great Explanation sir .Really helpful for coding issue

[AhamedKabeer-wnjb]

Very beautiful explanation Sir..Thank you.

[pythongabi]

Thanks so much its very valuable for me!

[finanzam]

Lombok helps with getters and setters ;)

[skaLife]

Thanks for the video. Please keep doing the great work.

[oleksandr]

Hi man !
It works !
It would be really nice if you can make video how to pass picture from controller to thymeleaf and show it

[ketanchiku]

i am unable to download large file in jsf and primeface
getting internal server error

[vab-tn]

If I want for it load data image to view website, how to do ?

[pravindabhade]

Hi Sir,
Unable to open uploaded pdf file on any browser.
Below error is occur :-
Error
Failed to load PDF document.

[TheShantanu]

I have one excel file in my local. I am trying to download it but it is giving me fileformat and extension don't match exception.

[saikirank]

Hii, after clicking the submit button it was navigating to uploadFiles url with some white label error please help

[Healthyreceipezz]

If we want to use Azure SQL database what changes we have to make ?

[ketanchiku]

how to set multipart in jsf and primeface plz help me

[rajubhattarai]

i dont want to store as blog type i want to store the path of images..How can i save it?

[eamonmac]

File is null for me when i run in my post method

[Healthyreceipezz]

Hi sir can you show this example using Azure SQL database