上通過Spring @Value註解

Question

注入的原始奇怪的例外，我對試圖通過注入春天@Value註解（Spring版本3.2.13）INT原始奇怪的錯誤。簡短描述：Spring試圖注入原始類型（int在我的情況下）而不是原始本身的bean。

• 我有屬性文件 「myProps.properties」 財產掃描路徑上

  number.of.search.log.events.in.queue=4 
  

• 配置類內容

  @Configuration 
  @ComponentScan(basePackages = { 
       "com.search.log" 
  }) 
  @PropertySource("classpath:myProps.properties") 
  @EnableAspectJAutoProxy 
  public class SearchLogConfiguration { 
  
      @Bean 
      public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() { 
       return new PropertySourcesPlaceholderConfigurer(); 
      } 
  
  } 
  

• 方面的基礎原始應注射

  @Aspect 
  @Component 
  public class SearchLogAspectHandler { 
  
      @Value("${number.of.search.log.events.in.queue:2}") 
      public int numberOfSearchLogEventsInQueue; 
  ... 
  } 
  

每次在應用程序啓動，我得到這個異常：

Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public int numberOfSearchLogEventsInQueue; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [int] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Value(value=${number.of.search.log.events.in.queue})} 
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:298) 

元也不能注入到其他豆類爲好。

問：請幫助找出爲什麼春天不能注入原始的，而是試圖注入類型的豆[INT]並不能找到一個。

Answer 1

變化@PropertySource("classpath:applicationConfig.properties")到@PropertySource("classpath:myProps.properties")或使用@PropertySources註解。