UPDATE : 28/09/2022 By : Kangwan .T JDK 11 MAVEN 3.8.3

Build and Run mvn clean install mvn spring-boot:run

TEST METHOD : POSTMAN see picture > /TestMethod Folder

http://localhost:8080/file/upload Method : POST body : form-data key : files > select flies

http://localhost:8080/file/download/{Filename.extension} Method : GET

PATH Default : Edit FileResource.java > public static final String DIRECTORY eg. /Downloads/uploads/