想在构建时自动压缩和合并指定的 js 文件，免得每次改了后手动压缩，但是输出的文件却没有压缩、混淆代码，试过把 aggregations 去掉但什么也没发生，输出如果指向 ${project.build.directory}/${project.build.finalName} 下面则在清理后会报找不到文件，即使 phase 改成 prepare-package 也不行。有一点猜测可能引起问题的地方在于我的 webapp 目录是特别配置的，不是默认位置，但试了设置 sourceDirectory 和 outputDirecotry 无效。pom.xml 中配置如下:

<plugin>
    <groupId>net.alchim31.maven</groupId>
    <artifactId>yuicompressor-maven-plugin</artifactId>
    <version>1.5.1</version>
    <executions>
        <execution>
            <goals>
                <goal>compress</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <encoding>UTF-8</encoding>
        <jswarn>false</jswarn>
        <suffix>.min</suffix>
        <excludes>
            <exclude>**/*.min.*</exclude>
            <exclude>**/*-min.*</exclude>
        </excludes>
        <aggregations>
            <aggregation>
                <output>${basedir}/web/static/assets/hongscore.js</output>
                <inputDir>${basedir}/web/static/assets/src</inputDir>
                <includes>
                    <include>hongscore.js</include>
                    <include>hongscore-form.js</include>
                    <include>hongscore-list.js</include>
                    <include>hongscore-tree.js</include>
                    <include>hongscore-fork.js</include>
                    <include>hongscore-file.js</include>
                    <include>hongscore-date.js</include>
                </includes>
                <removeIncluded>false</removeIncluded>
                <insertNewLine>true</insertNewLine>
            </aggregation>
        </aggregations>
    </configuration>
</plugin>