slide test

README.md

class:midle

Environment Configuration

with zero EL

---

first page

running the same java process in different environments

dev

java -jar app.jar -Dmsg=hello-dev

prod

MSG='Hello PROD'
java -jar app.jar

---

class: middle

Spring Environment

<beans>
  <context:property-placeholder />
</beans>

public class MyComponent {
  @Autowired
  private Environment env;

  public void someMethod() {
    System.out.println(env.getProperty("msg"));
  }
}