Pfthb

Im trying to access the spring application name in a custom starter auto-configuration.

@Configuration
public class CustomAutoConfiguration 

 @Value("$spring.application.name")
 private String appName;

spring.factories as,

org.springframework.boot.autoconfigure.EnableAutoConfiguration=
co.test.CustomAutoConfiguration

In an application that uses this custom starter I have defined the application name in bootstrap.yaml

spring:
 application:
 name: test-app

However, I'm seeing that appName is null. My guess is this has something to do with the order of loading ? Anyway to achieve this ?

I had similar issue in past and I solved by autowiring org.springframework.core.env.Environment; something like this:

@Configuration
public class CustomAutoConfiguration 
 @Autowired
 private Evinronment env;
 private String appName;
 @PostConstruct
 public void initialize()
 this.appName = env.getProperty("spring.application.name");
 

Not tested but it should work

Angelo

This is what worked in the end.

@Configuration
public class CustomAutoConfiguration implements EnvironmentAware 

 @Override
 public void setEnvironment(Environment environment) 
 this.environment = environment;
 

 // And then accessing via this.environment.getProperty("spring.application.name")

Might have something to do with the order in which bootstrap.yml gets loaded. We uaw @Value all the time in our @Configuration classes without issue, but we use application.properties. Have you tried setting it there? Or maybe on command line?

I believe that your configuration class needs getters and setters for a private field annotated with @Value, in order for Spring to be able to set the field!