eclipse “是一个未知属性”：Spring 的 application.properties 中的自定义属性
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"is an unknown property": custom properties in Spring's application.properties
提问by maligree
Sorry if this a trivial thing, I'm hacking out on an abandoned project and trying to add a custom property to the projects application.propertiesfile.
对不起，如果这是一件微不足道的事情，我正在破解一个废弃的项目并尝试将自定义属性添加到项目application.properties文件中。
The properties actually work fine (i.e. they are properly resolved when doing @Value("${foo.config.someValue"})) but Eclipse insists on telling me this:
这些属性实际上工作正常（即它们在执行时正确解析@Value("${foo.config.someValue"})）但 Eclipse 坚持告诉我这一点：
Pressing tab does nothing at all.
按 Tab 什么也不做。
How can I make this go away? Can I define my custom properties somewhere? Or maybe this isn't the way at all to add custom configuration properties?
我怎样才能让它消失？我可以在某处定义我的自定义属性吗？或者这根本不是添加自定义配置属性的方法？
回答by whistling_marmot
Since STS 3.5.4, you should be able to get rid of this warning, and have it replaced by useful 'hover-over' text by using java-doc on an @ConfigurationPropertiesbean to auto-generate configuration meta-data. You should be able to do this with application.properties or, since 3.7.0, application.yml, (but so far, I can't get it to work with either).
从STS 3.5.4 开始，您应该能够摆脱此警告，并通过在@ConfigurationPropertiesbean上使用 java-doc自动生成配置元数据，将其替换为有用的“悬停”文本。您应该可以使用 application.properties 或从3.7.0 开始使用 application.yml 来执行此操作（但到目前为止，我都无法使用它）。
回答by Matt C
There is an Eclipse Quick Fixto deal with the warning you mention available in STS since the 3.7.1.RELEASE https://issuetracker.springsource.com/browse/STS-4206
自 3.7.1.RELEASE https://issuetracker.springsource.com/browse/STS-4206起，有一个Eclipse Quick Fix可以处理您在 STS 中提到的警告
Otherwise, assuming you have defined your properties as @ConfigurationProperties, then you just need to ensure you have spring-boot-configuration-processoras an optional dependency as discussed here https://docs.spring.io/spring-boot/docs/current/reference/html/configuration-metadata.html#configuration-metadata-annotation-processor
否则，假设您已将属性定义为@ConfigurationProperties，那么您只需要确保您具有spring-boot-configuration-processor可选的依赖项，如此处讨论的https://docs.spring.io/spring-boot/docs/current/reference/html/configuration-metadata .html#configuration-metadata-annotation-processor
回答by Sanjay
Your project might be having configuration metadata, whether generatedor manual. If so, you would need to add your the metadata pertaining to the new property, and re-build the project.
