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.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <!--不传递依赖-->
            <optional>true</optional>
        </dependency>