Environment, Property variable 읽기

Environment

val myEnv: Option[String] = sys.env.get("MY_ENV")
println(myEnv)

> export MY_ENV="env_123"

> java -cp app.jar ...  

 

Property

val myProp: Option[String] = sys.props.get("MY_PROP")
println(myProp)

> java -cp app.jar -DMY_PROP="prop_abc" ...