Maven 打jar包，同时打源码包

<plugin>
    <artifactId>maven-source-plugin</artifactId>
    <version>2.2.1</version>
    <configuration>
        <attach>true</attach>
    </configuration>
    <executions>
        <execution>
            <phase>compile</phase>
            <goals>
                <goal>jar</goal>
            </goals>
        </execution>
    </executions>
</plugin>