What to set for Spring's @PropertySource when using spring.config.location command line arg?

Question

I have defined a @Config class like so:

@Config
@PropertySource(value = "")
public class Foo {
...
}

I run my program by including the following:

 --spring.config.location=file:///Users/dev/workspace/application.yml

The problem is that I cannot omit the 'value' attribute of the PropertySource annotation. Why do you need to set that? Will that overwrite what I have set in --spring.config.location ? Should I use SimpleCommandLinePropertySource instead of --spring.config.location ?

Answer 1

When you use external property file using spring.config.location you just have to set for value in your configuration class:

@Config
@PropertySource(value = "${spring.config.location}")
public class Foo {
...
}