/java-heroku

Primary LanguageJava

Minimal Java project which can be deployed on Heroku

note: be aware of Heroku env variables:

  • DATABASE_URL looks like postgres:...
  • JDBC_DATABASE_URL looks like jdbc:postgresql:...

Pay your attention to

  • Procfile contents:
    • fully qualified path to the main class
    • classpath declaration
  • pom.xml sections:
    • <packaging>jar
    • <pluginns>maven-dependency-plugin...
  • Http Server must start on the port, provided by Heroku's system environment variable PORT
    • file MinimalWebApplication.java
    • method main

Links

  • Heroku official documentation in general: here
  • Heroku official documentation about JDBC connection: here
  • Heroku official github code: here
  • Baeldung link how to create runnable jar file: here