Spring中不同bean的不同yml文件

Question

我如何配置Bean，从一个新的yml文件加载和工作所有属性，从另一个新的yml加载和工作另一个Bean？最佳实践是什么？

我发现了使用YAMLPropertiesFactoryBean的示例，并且这个bean可以读取几个资源（yml文件），但是在另一个bean中，当我读取这个YAMLPropertiesFactoryBean时，我无法获得特定的yml，因为这个YAMLPropertiesFactoryBean的getObject()将包含我添加到其中的所有yml资源。

Answer 1

我终于拿到了！这就是它的工作原理：

我有一个属性配置类，它加载yml文件：

@Configuration
public class PropertiesConfig {

    public static final String PERSONS_FILE_NAME = "persons.yml";
    public static final String FOODS_FILE_NAME = "foods.yml";

    @Bean
    public PropertySourcesPlaceholderConfigurer properties() {
        final PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer = new PropertySourcesPlaceholderConfigurer();
        final YamlPropertiesFactoryBean personsYaml = personsPropertiesFromYamlFile();
        final YamlPropertiesFactoryBean foodsYaml = foodsPropertiesFromYamlFile();
        propertySourcesPlaceholderConfigurer.setPropertiesArray(personsYaml.getObject(), foodsYaml.getObject());
        return propertySourcesPlaceholderConfigurer;
    }

    @Bean
    @Qualifier(PersonsManager.QUALIFIER_NAME)
    public YamlPropertiesFactoryBean personsPropertiesFromYamlFile() {
        final YamlPropertiesFactoryBean yaml = new YamlPropertiesFactoryBean();
        yaml.setResources(new ClassPathResource(PERSONS_FILE_NAME));
        return yaml;
    }

    @Bean
    @Qualifier(FoodsManager.QUALIFIER_NAME)
    public YamlPropertiesFactoryBean foodsPropertiesFromYamlFile() {
        final YamlPropertiesFactoryBean yaml = new YamlPropertiesFactoryBean();
        yaml.setResources(new ClassPathResource(FOODS_FILE_NAME));
        return yaml;
    }

}

最后，我有两个bean（管理器），它们只保存相应的yml属性：

@Component
public class PersonsManager extends YmlPropertiesManager {

    public static final String QUALIFIER_NAME = "personsYaml";

    @Autowired
    public PersonsManager(@Qualifier(QUALIFIER_NAME) YamlPropertiesFactoryBean yamlObject) {
        super(yamlObject);
    }

    ...

}

@Component
public class FoodsManager extends YmlPropertiesManager {

    public static final String QUALIFIER_NAME = "personsYaml";

    @Autowired
    public FoodsManager(@Qualifier(QUALIFIER_NAME) YamlPropertiesFactoryBean yamlObject) {
        super(yamlObject);
    }

    ...

}