###46.7.5 編寫自定義的InfoContributors 你可以注冊實現了[`InfoContributor`](https://github.com/spring-projects/spring-boot/tree/v1.4.1.RELEASE/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/info/InfoContributor.java)接口的Spring beans來提供自定義應用信息。以下示例暴露一個只有單個值的`example`實體： ```java import java.util.Collections; import org.springframework.boot.actuate.info.Info; import org.springframework.boot.actuate.info.InfoContributor; import org.springframework.stereotype.Component; @Component public class ExampleInfoContributor implements InfoContributor { @Override public void contribute(Info.Builder builder) { builder.withDetail("example", Collections.singletonMap("key", "value")); } } ``` 如果點擊`info`端點，你應該可以看到包含以下實體的響應： ```json { "example": { "key" : "value" } } ```