从实体访问属性的春季方式是什么? [英] What's the Spring way of accessing properties from an entity?

问题描述

我是Spring的新手，我正在构建一个应用程序，其中某些实体(JPA/Hibernate)需要从application.properties访问属性.我确实有一个简单的配置类:

I'm new to Spring and I'm building an application where some entities (JPA/Hibernate) need access to a property from application.properties. I do have a configuration class in which this is trivial:

@Configuration
public class FactoryBeanAppConfig {    
    @Value("${aws.accessKeyId}")
    private String awsAccessKeyId;
    @Value("${aws.secretKey}")
    private String awsSecretKey;
}

但是由于实体没有并且我认为它们不应该具有诸如@Configuration或@Component之类的注释，因此Spring访问该属性的方式是什么?

but since entities do not have and I think they should not have the annotations such as @Configuration or @Component, what's the Spring way for them to access the property?

现在，我知道我可以创建自己的类，自己的bean，并将其作为属性的简单包装.但这是Spring的方法吗?还是还有另一种方法?

Now, I know I can create my own class, my own bean, and make it as a simple wrapper around the properties; but is that the Spring way to do it or is there another way?

推荐答案

使用@PropertySource
指定属性文件的位置 如下

specify Property file location using @PropertySource
Something like below

@PropertySource("classpath:/application.proerties")

您还需要在配置中添加以下bean

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

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