定义

		
	<path id="classpath">  
        <fileset dir="${env.JAVA_HOME}/lib">  
            <include name="*.jar" />  
        </fileset>  
        <fileset dir="${env.CATALINA_HOME}/lib">  
            <include name="*.jar" />  
        </fileset>  
        <fileset dir="WebRoot/WEB-INF/lib" includes="*.jar"/>
    </path>    
		
		

引用

		
	<javac srcdir="${src.dir}" destdir="${classes.dir}" source="1.5" target="1.5">  
		<classpath refid="classpath" />  
	</javac>		
		
		

		
    <classpath>
		<path refid="classpath"/>
    </classpath>