spring boot Configuration Annotation Proessor not found

 官方文档

      

You can easily generate your own configuration metadata file from items annotated with @ConfigurationProperties by using the spring-boot-configuration-processor jar. The jar includes a Java annotation processor which is invoked as your project is compiled. To use the processor, include a dependency on spring-boot-configuration-processor.

With Maven the dependency should be declared as optional, as shown in the following example:

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-configuration-processor</artifactId>
	<optional>true</optional>
</dependency>

大概意思是你可以通过@ConfigurationProperties 这个注解简单生成你的配置元数据，但是这个注解需要这么一个jar包，你只要在pom文件中添加这个依赖就可以了，清楚简单