Java Examples

This repository contains 4 simple projects to try and meet some Java tools:

• web app - one page web application without any Java code to get to know Maven and Tomcat deployment process
• hibernate app - fetching entities from PostgreSQL database with Hibernate and writing them to JSON file via Jackson
• spring app - XML-based Spring application which supports CRUD functionality using Servlet and JSP
• boot app - Spring Boot REST API service protected by JWT

Where to begin?

git clone git@github.com:ojdgaf/java-examples.git
cd java-examples
scripts/build.sh

Containers

The script above creates 4 Docker containers within "java-examples" network

• tom - Tomcat deployment server (port 8080)

Visit http://localhost:8080/webapp and http://localhost:8080/springapp to test webapp and springapp respectively

• mav - Maven instance (port 8081)

hibernateapp creates JSON file after execution - use cat examples/hibernateapp/log.json

bootapp is running in the background and available at http://localhost:8081

• pos - PostgreSQL database (port 8082)
• adm - Adminer instance (port 8083)

More about Spring Boot Application

see logs using cat examples/bootapp/run.log

import Postman collection and check out some endpoints

stop the container to stop the background execution

it supports live reload. in order to use this feature you have to create remote configuration in your IDE as well as enable autobuild and automake. although it's so inconvenient i'd rather suggest you to develop locally