如果maven中使用markdown生成xml需要添加插件

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-site-plugin</artifactId>
<version>3.2</version>
<dependencies>
<dependency>
<groupId>org.apache.maven.doxia</groupId>
<artifactId>doxia-module-markdown</artifactId>
<version>1.3</version>
</dependency>
</dependencies>
</plugin>