dummy-java-spring

This is another "JAVA Spring for dummies", using some convention over configuration principles to focus on standard and most popular uses. It is also a fast "how-to for UBUNTU 16 LTS".

General conventions

Conventions or project decisions.

• System (server): UBUNTU 16 LTS
• Java version: Oracle Java8
• Dependency management system (build_automation): Maven 3.3
• SQL: PostgreSQL 9.6+ (for JSONb, etc.)
• Spring: Spring v4, Spring boot
• Spring-client: AngularJS Material

Installing

Supposing "fresh" system, without any pre-installed tools.

Preparing UBUNTU

As digitalocean.com/community/how-to-java-apt:

sudo apt install git
cd ~
git clone https://github.com/ppKrauss/dummy-java-spring.git
cd  dummy-java-spring
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt install oracle-java8-installer
  #  interface for Oracle license terms, final:
  #  Oracle JRE 8 browser plugin installed; Oracle JDK 8 installed
java -version  # not say any relevant thing, eg. "Java(TM) SE Runtime Environment (build 1.8.0_111-b14)"
update-alternatives --config java # and ENTER; shows /usr/lib/jvm/java-8-oracle/jre/bin/java

#MAVEN 3
sudo apt install maven
mvn -version  # check

Preparing server

... ?

Preparing Spring

Avoid to use a pre-defined pow.xml whille you is a dummy ;-) Create your pom.xml from http://start.spring.io/
in a folder myproject and run it (in the folder) with mvn install Result in something like,

...
[INFO] Installing /home/peter/dummy-java-spring/myproject/pom.xml to ...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 17.878 s
[INFO] ...

Preparing your IDE

Convention: Atom, Eclipse or IntelliJ IDEA.

Installing Idea.

1. Go at jetbrains.com/idea and press "Download", and select eg. "Ultimate", and download it as "Linux without JDK",

2. download-thanks linuxWithoutJDK

3. at downloaded folder you have something like ideaIU-2016.3-no-jdk.tar.gz, so ...

Next steps

... See Installing Spring Boot and Building a RESTful Web Service

mvn package # at dummy-java-spring folder

See maven.apache.org/maven-in-five-minutes...

ROO!

The Spring Roo project is the best! Roo1.3.X is stable, and Roo v2-RC1 is near!

For you, a dummy, see how to start with Roo2

• hello.md, the 10-lines oficial Roo2 test-and-demo script.

• hello2pg.md for PostgreSQL persistence.

• hello3pg.md for Roo's database reverse engineer (docs.spring's Chapter 9), your first test-and-demo for SQL reengineering.

To test Roo v1, the same adapted for Roo1 env,

• hello.md, an adaptation for Roo1, of the 10-lines oficial Roo2 test-and-demo script.

• hello2pg.md for PostgreSQL persistence.

• hello3pg.md for Roo's database reverse engineer.