@PropertySource（）在@ImportResource（）导入的XML中定义的bean中不起作用

Question

Can not find correct answer to next situation in Internet. So, if it was already discussed somewher, just point out.

I jave UnitTest that is run by Spring:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:spring/app-core-config.xml")
public class ConcurrentProcessingTest extends AbstractLSTest {
  public void testMethod1(){
    ...
  }
}

spring/app-core-config.xml contains some beans that use @PropertySource .

For example, Service1Impl :

@Service    
@PropertySource("classpath:system/service1.properties")
public class Service1Impl {
    @Value("${event.ack.warning}")
    private String eventAckWarningComm;

    @Value("${event.ack.info}")
    private String eventAckInfoComm;
}

So, few classes with similar usage of @PropertySource are defined in spring/app-core-config.xml .

When I run mentioned UnitTest all works fine.

But I need some additional Java configuration for specific UnitTest. So, I written next simple configuration for previous UnitTest:

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {ConcurrentProcessingTest.AppCoreConfiguration.class})
public class ConcurrentProcessingTest extends AbstractLSTest {

  @Configuration
  @ImportResource("classpath:spring/app-core-config.xml")
  //@PropertySource("classpath:system/service1.properties")  -- if uncommented, UT works
  //But it is annoying to add all propery-files here
  static class AppCoreConfiguration { 
    //Here I want to add extra configuration in Java style
  }

  public void testMethod1(){
    ...
  }
}

But when I run this UnitTest, I get next exception:

Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'event.ack.warning' in string value "${event.ack.warning}"
    at org.springframework.util.PropertyPlaceholderHelper.parseStringValue(PropertyPlaceholderHelper.java:174)
    at org.springframework.util.PropertyPlaceholderHelper.replacePlaceholders(PropertyPlaceholderHelper.java:126)
    at org.springframework.core.env.AbstractPropertyResolver.doResolvePlaceholders(AbstractPropertyResolver.java:194)
    at org.springframework.core.env.AbstractPropertyResolver.resolveRequiredPlaceholders(AbstractPropertyResolver.java:158)
    at org.springframework.context.support.PropertySourcesPlaceholderConfigurer$2.resolveStringValue(PropertySourcesPlaceholderConfigurer.java:175)
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveEmbeddedValue(AbstractBeanFactory.java:800)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:871)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
    ... 184 more

Could someone explain me why @PropertySource is not working in bean defined in XML imported by @ImportResource ?

Answer 1

After you have demarcated your class with respective propertysource you need to declare static propertySourcesPlaceHolderConfigurer bean like below in your configuration class

@Bean
    public static PropertySourcesPlaceholderConfigurer xxxpropertyConfig() {
        return new PropertySourcesPlaceholderConfigurer();
    }