场景

打包报错:java.lang.UnsupportedClassVersionError: org/springframework/boot/maven/RepackageMojo has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0

解决

spring-boot-maven-plugin 指定版本, 版本和springboot报错一致， 最新版不支持repackage 配置

    <build>
        <finalName>${artifactId}</finalName>
        <plugins>
            <!--编译插件-->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                    <encoding>utf-8</encoding>
                </configuration>
            </plugin>
            <!--打包插件-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.2.4.RELEASE</version>
                <!--                2.2.4.RELEASE-->
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal> <!-- 将引入的 jar 打入其中 -->
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>