maven打包 运行出现 错误: 找不到或无法加载主类 jar

 <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.1.1.RELEASE</version>
                <configuration>
                    <fork>true</fork> <!-- 如果没有该配置，devtools不会生效 -->
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>   
                <groupId>org.apache.maven.plugins</groupId>   
                <artifactId>maven-war-plugin</artifactId>   
                <version>3.0.0</version>   
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                    <warName>${project.artifactId}</warName>
                </configuration>   
           </plugin>   
        </plugins>
        <finalName>${project.artifactId}</finalName>
    </build>