问如何在用于javascript和css的Ant构建脚本中使用YUI压缩器

EN

<!-- Minimizing Javascript files -->
    <echo message="Compressing Javascript files at location: ${build.root}/resources/js/*.js" />
    <java jar="c:/dev/lib/yuicompressor-2.4.7/build/yuicompressor.jar" fork="true">
        <arg value="${build.root}/resources/js/*.js" /> <!-- input path for JS files -->
        <!--<arg value="-v" /> --><!-- Turn on verbose -->
        <arg value="-o" />
        <arg value="'.js$:.js'" />
        <arg value="${build.root}/resources/js/*.js" /> <!-- output path for JS files -->
        <classpath>
            <pathelement location="c:/dev/lib/yuicompressor-2.4.7/build/yuicompressor.jar"/>
        </classpath>
    </java>

<target name="compress" description="compress the JS files">
    <copy todir="temp/js" overwrite="yes">
        <fileset dir="original/js"/>
    </copy>
    <apply executable="java" parallel="false" dest="temp/js">
        <fileset dir="temp/js" includes="**/*.js" />
          <arg line="-jar"/>
          <arg path="test_lib/yuicompressor-2.4.8.jar" />
          <arg line="-v"/>
          <srcfile/>
          <arg line="-o"/>
          <mapper type="glob" from="*.js" to="*-min.js"/>
          <targetfile/>
    </apply>
    <move todir="original/js" overwrite="true">
        <fileset dir="temp/js" />
        <mapper type="glob" from="*-min.js" to="*.js"/>
    </move>
</target>

    <apply executable="java" parallel="false" >
                <fileset dir="${build.root}/resources/js" includes="**/*.js" />
                    <arg line="-jar"/>
                    <arg path="${basedirectory}/yuicompressor-2.4.8.jar" />
                    <srcfile/>
                    <arg value="-o" />
                    <arg value="'.js$:.js'" />
                    <!-- output path for JS files -->
                    <arg value="${build.root}/resources/js/*.js" />
                    <arg line="--nomunge" />
                    <arg line="--preserve-semi" />              
            </apply>