@PropertiesValueSource@EnvironmentValueSource@SystemPropertiesValueSource
ValueSource annotations may be used in conjunction:
@Configuration @EnvironmentValueSource @SystemPropertiesValueSource @PropertiesValueSource("classpath:com/acme/db.properties") public class AppConfig { @ExternalValue("datasource.username") String username; @Bean public TestBean testBean() { return new TestBean(username); } }
In this example, datasource.username will be looked for in
db.properties, in the set of environment variables present at runtime
and in the system properties.