Unable to find a single main class from the following candidates

妖狐艹你老母 2022-05-26 03:17 526阅读 0赞

用docker部署spring cloud微服务的时候，执行mvn package docker:build

报如下错误：

\[ERROR\] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.5.12.RELEASE:repackage (default) on project pica-cloud-eureka-server: Execution default of goal org.springframework.boot:spring-boot-maven-plugin:1.5.12.RELEASE:repackage failed: Unable to find a single main class from the following candidates \[com.xxx.xxx.Application, com.xxx.xxx.Application\] -> \[Help 1\]  
\[ERROR\]  
\[ERROR\] 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][http_cwiki.apache.org_confluence_display_MAVEN_PluginExecutionException]

查找资料，修改pom.xml文件，加入以下代码：

<plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                    <configuration>
                        <mainClass>com.xxx.xxx.Application</mainClass>
                    </configuration>
                </plugin>

就是指定main方法

[http_cwiki.apache.org_confluence_display_MAVEN_PluginExecutionException]: http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException