# 附录B.1.4. 可重复的元数据节点

在同一个元数据文件中可以有多个"property"和"group"名称都相同的对象。例如，Spring Boot将`spring.datasource`属性绑定到Hikari，Tomcat和DBCP类，并且每个都潜在的提供了重复的属性名。虽然多次出现在元数据中的相同名称不应该是常见的，但是元数据的使用者应该注意确保他们支持它。


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://jack80342.gitbook.io/spring-boot/x.-appendices/b.-configuration-metadata/b.1.-metadata-format/b.1.4.-repeated-metadata-items.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
