D:\home\jdk11\bin\java.exe -Dmaven.multiModuleProjectDirectory=D:\showndoc\haikongweishi -Dmaven.home=D:\home\apache-maven-3.6.0 -Dclassworlds.conf=D:\home\apache-maven-3.6.0\bin\m2.conf "-Dmaven.ext.class.path=D:\home\IntelliJ IDEA 2021.1.3\plugins\maven\lib\maven-event-listener.jar" "-javaagent:D:\home\IntelliJ IDEA 2021.1.3\lib\idea_rt.jar=59520:D:\home\IntelliJ IDEA 2021.1.3\bin" -Dfile.encoding=UTF-8 -classpath D:\home\apache-maven-3.6.0\boot\plexus-classworlds-2.5.2.jar org.codehaus.classworlds.Launcher -Didea.version=2021.1.3 --offline -s D:\home\apache-maven-3.6.0\conf\settings.xml -Dmaven.repo.local=D:\home\apache-maven-3.6.0\mvn_resp install [INFO] Scanning for projects... [INFO] [INFO] -----------------------< com.dwi:haikongweishi >------------------------ [INFO] Building haikongweishi 1.0-SNAPSHOT [INFO] --------------------------------[ jar ]--------------------------------- [WARNING] The POM for org.apache.maven.plugins:maven-shade-plugin:jar:3.2.1 is missing, no dependency information available [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.240 s [INFO] Finished at: 2023-06-08T13:09:36+08:00 [INFO] ------------------------------------------------------------------------ [ERROR] Plugin org.apache.maven.plugins:maven-shade-plugin:3.2.1 or one of its dependencies could not be resolved: Cannot access alimaven (http://maven.aliyun.com/nexus/content/groups/public/) in offline mode and the artifact org.apache.maven.plugins:maven-shade-plugin:jar:3.2.1 has not been downloaded from it before. -> [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/PluginResolutionException Process finished with exit code 1

根据错误信息提示，maven-shade-plugin 插件或其依赖项未能被解决，并且 Maven 处于离线模式。请尝试以下解决方案：

1. 离线模式下无法从远程仓库下载插件或依赖项，因此请确保您的网络连接正常并将 Maven 切换为在线模式。

2. 您可以尝试清除 Maven 的本地仓库缓存，以便重新下载插件或依赖项。可以使用以下命令清除本地仓库缓存：

`mvn dependency:purge-local-repository`

3. 如果您使用的是私有仓库，请检查设置.xml 文件中的配置是否正确，并且如果使用了代理，请确保代理设置正确。

4. 如果以上方法都无法解决问题，则可能需要手动下载插件或依赖项，并将其安装到本地仓库中。您可以使用以下命令将插件或依赖项安装到本地仓库：

`mvn install:install-file -Dfile=<path-to-file> -DgroupId=<group-id> -DartifactId=<artifact-id> -Dversion=<version> -Dpackaging=<packaging>`

其中，`<path-to-file>` 是插件或依赖项的路径，`<group-id>`、`<artifact-id>`、`<version>` 和 `<packaging>` 分别是插件或依赖项的 Maven 坐标。

希望以上解决方案中的某一个可以解决您的问题。