添加下面的maven Scala编译支持

<plugin>

    <groupId>net.alchim31.maven</groupId>    <artifactId>scala-maven-plugin</artifactId>    <version>3.2.2</version>    <configuration>       <recompileMode>incremental</recompileMode>    </configuration>    <executions>       <execution>          <goals>             <goal>compile</goal>             <goal>testCompile</goal>          </goals>       </execution>    </executions> </plugin>