ntung / spring-fileservice-example

Example Project to demonstrate file upload/download with Spring

Spring FileService Example

Example Project to demonstrate file upload/download with Spring. It's mainly used as example code for a blog post but can be used and adapted into a production ready service.

Configuration

The important settings are in application.yml:

spring:
    datasource:
        driver-class-name: org.h2.Driver
        url: jdbc:h2:file:./target/database;MODE=PostgreSQL;DATABASE_TO_LOWER=TRUE;CASE_INSENSITIVE_IDENTIFIERS=TRUE;
        username: sa
        password: pw

save-dir: ./target/files

Since this is a demo application it uses the H2 DB in Postgres Mode. The database as well as the downloaded files are both stored in the target directory, so to start with a clean slate you can just do a mvn clean.

Running

The service can be started by just running the main entrypoint in FileServiceApplication. It will start and present a very simple user interface on http://localhost:8080 where you can upload a file. After an upload the file should show up in the list of files and can be downloaded.