官方说明地址
https://docs.spring.io/spring-boot/docs/2.1.5.RELEASE/reference/html/configuration-metadata.html#configuration-metadata-annotation-processor
解决方法
在pom.xml中添加
<dependency><groupId>org.springframework.bootgroupId><artifactId>spring-boot-configuration-processorartifactId><optional>trueoptional>dependency>