mvn 多模块

mvn archetype:generate -DgroupId=com.xxx.cloud -DartifactId=myapp -Dversion=1.0.0-SNAPSHOT -Dpackage=com.myapp 
-DarchetypeArtifactId=maven-archetype-site-simple -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeVersion=1.1 -DinteractiveMode=false