<plugin>
   <groupId>org.apache.maven.plugins</groupId>
   <artifactId>maven-compiler-plugin</artifactId>
   <executions>
     <execution>
       <id>default-compile</id>
       <phase>compile</phase>
       <goals>
          <goal>compile</goal>
       </goals>
       <configuration>
         <skipMain>true</skipMain> <--Skip
       </configuration>
     </execution>
   </executions>
</plugin>

将此选项设置为"true"可绕过主要源代码的编译.它的用途是 不推荐，但有时很方便.用户属性是: maven.main.skip.

Set this to 'true' to bypass compilation of main sources. Its use is NOT RECOMMENDED, but quite convenient on occasion. User property is: maven.main.skip.

mvn package -Dmaven.main.skip