Read system properties from file specified as java executable argument

Question

By launching java with the -D option you can set System.properties.

Is there a way to specify a properties file as an option for java, which in turn read them as System.properties?

E.g.

java -Dfile ./alotof.properties

I'm building a webapp deployed in JBoss. The jboss xml configuration files accepts system properties as inline config {my.property}, which reads from the command line argument but this gets unruly as the number of properties grow.

Answer 1

You can read the properties file in bash (in run.sh file), parse properties and create the proper config line for JVM.

Here you can find 2 articles that can help you:

• Reading Java-style Properties Files with Shell (permalink)
• Reading java.properties file from bash