How to load application.properties in spring framework?

Question

My spring application start's via WebApplicationInitializer.

public class WebAppInitializer implements WebApplicationInitializer
{
    @Override
    public void onStartup(ServletContext servletContext) throws ServletException
    {
       ....
    }
}

I have Config class

@Configuration
@PropertySources({
    @PropertySource(value = "classpath:application.properties"))
})
public class MainConfig
{
  ....
}

And in application.properties file I try to override the spring and logging properties

logging.level.com.app=DEBUG
logging.level.org.springframework.web=DEBUG

The file application.properties is in the directory src/main/resources

But it has no effect - means that no property is applied to the spring or logging system

With your `@Configuration`, `application.properties` becomes a property source. You haven't shown us anywhere where you're using those properties. — Sotirios Delimanolis, Oct 25 '21 at 13:04
It's still unclear what you're asking. Why do you expect your property source to apply to "logging system"?? — Sotirios Delimanolis, Oct 25 '21 at 13:30
Why not ? In all examples this is written. In addition, the properties of the spring itself are also not applied — kidar2, Oct 25 '21 at 13:40
What examples? What do you mean by _properties of the spring itself_? — Sotirios Delimanolis, Oct 25 '21 at 15:44

score -1 · Answer 1 · answered Oct 25 '21 at 12:10

-1

Try using SpringBoot. In spring boot application.properties is read by default and you don't even need to use @PropertySource to read it. You can download a spring boot application skeleton from https://start.spring.io/

answered Oct 25 '21 at 12:10

Peter Szanto

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How to load application.properties in spring framework?

1 Answers1