Evaluating spring @value annotation as primitive boolean

Question

I have a spring @configuration annotated class MappingsClientConfig with a boolean field as:

 @Value(\"${mappings.enabled:true}\")
    private boolean mappi         


        

Answer 1

Looks like you're missing the PropertyPlaceholderConfigurer. You need to register it as a bean factory post processor. Theoretically this could be done like this:

public class PostProcessorConfig {

    @Bean
    public BeanFactoryPostProcessor getPP() {
       PropertyPlaceholderConfigurer configurer = new PropertyPlaceholderConfigurer();
       configurer.setLocations(new Resource[]{new ClassPathResource("/my.properties")});
       return configurer;
    }
}

However, there seems to be a bug that causes other issues doing this from a java based configuration. See ticket for workarounds.