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spring-boot-maven-plugin未指定版本导致的编译错误问题怎么解决

时间:2024-7-8 14:46     作者:韩俊     分类: Java


本篇内容主要讲解“spring-boot-maven-plugin未指定版本导致的编译错误问题怎么解决”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“spring-boot-maven-plugin未指定版本导致的编译错误问题怎么解决”吧!

    spring-boot-maven-plugin未指定版本导致的编译错误

    报错

    springboot应用在使用maven编译时会报如下错误:

    Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0

    [ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:3.0.0-M2:repackage (default) on project mis: Execution default of goal org.springframework.boot:spring-boot-maven-plugin:3.0.0-M2:repackage failed: Unable to load the mojo 'repackage' in the plugin 'org.springframework.boot:spring-boot-maven-plugin:3.0.0-M2' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: 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
    Caused by: 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

    原因

    原因是maven在编译打包过程中没有指定spring-boot-maven-plugin的版本,默认会从nexus仓库中拉取最新的打包插件版本,而最新的3.0.0版本不被jdk8支持,无法执行编译。

    解决方案

    需要用户在pom.xml文件中手动指定spring-boot-maven-plugin该插件的打包版本。

    如:

    加上版本<version>2.2.6.RELEASE</version>

    <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <version>2.2.6.RELEASE</version>
                    <configuration>
                        <finalName>${project.artifactId}</finalName>
                        <mainClass>com.xxl.job.admin.XxlJobAdminApplication</mainClass>
                    </configuration>
                    <executions>
                        <execution>
                            <goals>
                                <goal>repackage</goal>
                            </goals>
                        </execution>
                    </executions>
                </plugin>
            </plugins>
        </build>

    spring-boot-maven-plugin 构建找不到

    问题描述

    本地编译打包maven项目时,报spring-boot-maven-plugin 构建找不到的错误。昨天还好好的,本地代码里的pom文件没有做任何改动。

    pom.xml中有一段下面的配置:(已去掉项目信息)

    <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <executions>
            <execution>
                <goals>
                    <goal>repackage</goal>
                </goals>
            </execution>
        </executions>
        <configuration>
            <classifier>boot</classifier>
            <mainClass>...</mainClass>
        </configuration>
    </plugin>

    关键错误信息如下:

    spring-boot-maven-plugin-2.3.1.RELEASE.jar找不到。

    分析

      去本地仓库,检查是否有该jar包

      ${user.home}/.m2

      去远程仓库查看,检查是否有该版本的jar包

    通过对比,发现远程仓库里有了最新版本的路径,但是里面确没有jar包。

    解决

    通过分析,可以总结如下:

    spring-boot-maven-plugin没有设置version,它会先去远程仓库找最新的版本,然后download到本地,然后完成maven操作等。但是远程仓库里没有相应的jar包,导致执行maven编译出错。因为远程仓库里已经有了最新版本的路径,它就不会使用已经存在的版本。

    解决:

    给spring-boot-maven-plugin指定具体的version,如下设置:

    <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>2.3.0.RELEASE</version>
        <executions>
            <execution>
                <goals>
                    <goal>repackage</goal>
                </goals>
            </execution>
        </executions>
        <configuration>
            <classifier>boot</classifier>
            <mainClass>...</mainClass>
        </configuration>
    </plugin>

    标签: java maven

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