【@ConfigurationProperties注解】Not Found The requested URL /spring-boot/docs/2.2.2.RELEASE/reference/html/configuration-metadata.html was not found on this server.

<!-- 配置文件自动映射 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>



查了一些资料，它默认是最新的版本，把版本降低一下，依赖就可以下载了。

需要加一行版本号，正确的参照下面👇：

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <version>2.1.6.RELEASE</version>
            <optional>true</optional>
        </dependency>