在新的Ant构建文件中指定类路径时，我遇到了一些问题：
<path id="classpath">
<fileset dir="${extdirs}">
<include name="**/*.jar"/>
</fileset>
</path>
我明白了：
BUILD FAILED
/home/amira/workspace/srd/clients/ill/impressions/ILLBLI2/build.xml:46: The following error occurred while executing this line:
/home/amira/workspace/srd/clients/ill/impressions/ILLBLI2/build.xml:12:
/home/amira/workspace/extdirs/common:/home/amira/workspace/extdirs/vaadin:
/home/amira/workspace/extdirs/remap:/home/amira/workspace/extdirs/axis2:/home/amira/workspace/extdirs/axis1 does not exist.
我尝试了这个：
<pathelement path="${extdirs}"/>
但是问题仍然存在。这是输出：
BUILD FAILED
/home/amira/workspace/srd/clients/ill/impressions/ILLBLI2/build.xml:46: The following error occurred while executing this line:
/home/amira/workspace/srd/clients/ill/impressions/ILLBLI2/build.xml:12: taskdef class net.sf.jasperreports.ant.JRAntCompileTask cannot be found
using the classloader AntClassLoader[/home/amira/workspace/extdirs/common:
/home/amira/workspace/extdirs/vaadin:/home/amira/workspace/extdirs/remap:
/home/amira/workspace/extdirs/axis2:/home/amira/workspace/extdirs/axis1]
Total time: 0 seconds
make: *** [compile.stamp] Error 1
这是我的EXTDIRS变量的内容：
回声$ {EXTDIRS}
/ home / amira / workspace / extdirs / common：/ home / amira / workspace / extdirs / vaadin：/ home / amira / workspace / extdirs / remap：/ home / amira / workspace / extdirs / axis2：/ home / amira / workspace / extdirs / axis1
最佳答案
正如Ravi Thapliyal所说，fileset仅适用于单个目录，而您想使用multirootfileset。不幸的是，这个目录需要用逗号分隔的一组目录，因此难度更大。
<pathconvert property="extdirs-comma-separated"
dirsep=",">
<path path="${extdirs}"/>
</pathconvert>
<path id="classpath">
<multirootfileset basedirs="${extdirs-comma-separated}">
<include name="**/*.jar"/>
</multirootfileset>
</path>
应该管用。