Question

带有以下yml

app:
  a:
    prop: aaa
  b:
    prop: bbb

@Component
public abstract class Common {

    @Value("${prop}")
    private String prop;

    @ConfigurationProperties(prefix = "app.a")
    @PropertySource("classpath:app.yml")
    @Component
    public static class A extends Common {
    }

    @ConfigurationProperties(prefix = "app.b")
    @PropertySource("classpath:app.yml")
    @Component
    public static class B extends Common {
    }
}

但是对于a或b来说，这两个类具有相同的值。

我该如何解决？

Answer 1

我发现了问题。只是。 yml doesn't work with PropertySource。

我仍然想相信我错了。

我将.yml文件更改为properties并尝试了此操作。

@PropertySource("classpath:/vendor.properties")
@EnableConfigurationProperties
public abstract class Common {

    @Value("${prop}")
    private String prop;

    @ConfigurationProperties(prefix = "app.a")
    @Component
    public static class A extends Common {
    }

    @ConfigurationProperties(prefix = "app.b")
    @Component
    public static class B extends Common {
    }
}

它奏效了。

Answer 2

您可以使用列表作为配置参数：

ERROR: invalid transaction termination
  Where: PL/pgSQL function MyFunction line 185 at COMMIT  Call getNextException to see other errors in the batch. Line 185 at COMMIT  Call getNextException to see other errors in the batch.

并在一个单独的bean中以更复杂的方式获取您的价值：

app:
  props: 
    - key: a
      value: aaa

    - key: b
      value: bbb

将其注入您的Common类实现中：

@ConfigurationProperties(prefix = "app")
public class CommonConfiguration {
    List<Prop> props;
    //Getters and setters
    public Prop retreiveSpecificConfiguration(String className) {
        //some kind of logic here
    }

    public static class Prop {
      private String key, value;
      //Getters and setters
    }
}

嵌套类中的ConfigurationProperties

2 个答案: