spring-boot-maven-plugin not found 标红

spring-boot-maven-plugin 需要指定版本号，版本号要和 sping-boot 一样

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.7.1</version>
            </plugin>
        </plugins>
    </build>