repackage failed: Unable to find main class

一.错误信息

SpringBoot进行Maven install操作时报repackage failed: Unable to find main class -> [Help 1]的错误,信息如下

[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.0.4.RELEASE:repackage (default) on project qfxSpringbootReadPropertiesDemo: Execution default of goal org.springframework.boot:spring-boot-maven-plugin:2.0.4.RELEASE:repackage failed: Unable to find main class -> [Help 1]

[ERROR] 

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR] 

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException

 

二.错误原因

因为没有正式环境的入口类,项目结构如下:

repackage failed: Unable to find main class

pom.xml文件的<build>配置信息如下:

repackage failed: Unable to find main class

 

三.解决方案1

pom.xml文件的<build>中指定入口类,代码如下

<configuration>

        <mainClass>com.qfx.App</mainClass>

</configuration>

如图

repackage failed: Unable to find main class

四.解决方案2

去掉<build>配置信息中spring热部署的配置，如图

repackage failed: Unable to find main class

 

五.解决方案3

修改pom.xml配置文件<build>内容如下,添加一个<pluginManagement>标签，代码如下

    <build>

        <finalName>test</finalName>

        <pluginManagement>

            <plugins>

                <plugin>

                    <groupId>org.springframework.boot</groupId>

                    <artifactId>spring-boot-maven-plugin</artifactId>

                    <dependencies>

                        <!-- spring热部署 -->

                        <dependency>

                            <groupId>org.springframework</groupId>

                            <artifactId>springloaded</artifactId>

                            <version>1.2.8.RELEASE</version>

                        </dependency>

                    </dependencies>

                </plugin>

            </plugins>

        </pluginManagement>

    </build>

 

六.再次执行 Maven install,一切正常