Micronaut属性注入不适用于Gradle多项目构建

Question

I am trying to setup Micronaut ( 1.1.0.BUILD-SNAPSHOT ) project with a shared package using Gradle multi-project build so I can put the common logic in one place.

I encountered the problem during the creation of the property file for the library. I put some library specific properties in application.yml but looks like they are not pushed forward to the application layer:

lib/src/main/java/lib/CommonSingeton.java

@Singleton
public class CommonSingleton {

  public CommonSingleton(
    @Value("${lib.testProperty}") String value
  ) {
    System.out.println(value);
  }
}

lib/src/main/resources/application.yml

lib:
  testProperty: test

app/src/main/java/app/AppController.java

@Controller("/app")
public class AppController {

  @Inject
  private CommonSingleton commonSingleton;

  @Get(produces = MediaType.TEXT_PLAIN)
  public String index() {
    return "Hello World";
  }
}

The error is:

Unexpected error occurred: Failed to inject value for parameter [value] of class: lib.CommonSingleton

Message: Error resolving property value [${lib.testProperty}]. Property doesn't exist
Path Taken: AppController.commonSingleton --> new CommonSingleton([String value])
io.micronaut.context.exceptions.DependencyInjectionException: Failed to inject value for parameter [value] of class: lib.CommonSingleton

The complete example is available on Github .

Answer 1

Currently it is designed to just read a single application.yml . If you were to remove the file from app , it would be read from lib . You can file an issue to make us aware this is something you want. https://github.com/micronaut-projects/micronaut-core/issues