java Ant 将类路径 jars 复制到目录
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Ant copy classpath jars to a directory
提问by Mohamed Nuur
I'm sure this has either been asked before or is pretty straightforward. But for whatever reason, I cannot seem to make it work. I want to use ant to copy the ${build.classpath}(which contains a colon separated list of jars) to the ${output.dir}/myapp/WEB-INF/lib.
我确定这之前已经被问过或者非常简单。但无论出于何种原因，我似乎无法让它发挥作用。我想使用 ant 将${build.classpath}（其中包含以冒号分隔的 jar 列表）复制到${output.dir}/myapp/WEB-INF/lib.
I have this right now and it doesn't seem to work:
我现在有这个，但它似乎不起作用：
<copy toDir="${output.dir}/myapp/WEB-INF/lib">
<fileset file="${build.classpath}" />
</copy>
It treats the whole classpath as one file. How do I get this to work?
它将整个类路径视为一个文件。我如何让这个工作？
回答by user268396
The Ant Manual on the copy task contains the answer for your problem. One of the example snippets it provides:
复制任务的 Ant 手册包含您的问题的答案。它提供的示例片段之一：
Collect all items from the current CLASSPATH setting into a destination directory, flattening the directory structure.
将当前 CLASSPATH 设置中的所有项目收集到目标目录中，从而扁平化目录结构。
<copy todir="dest" flatten="true">
<path>
<pathelement path="${java.class.path}"/>
</path>
</copy>
回答by Krzysztof Miksa
I think somethink like this should work:
我认为这样的想法应该有效：
<copy todir="${output.dir}/myapp/WEB-INF/lib" verbose="yes" flatten="yes" failonerror="no">
<fileset dir="${build.classpath}">
<include name="*.jar" />
</fileset>
</copy>
or with wildcard in include: <include name="**/*.jar" />
或包含通配符： <include name="**/*.jar" />
回答by nIKUNJ
I think you should put all your colon separated jar files to one root folder. If it is not possible then create a separate task that put those jar files into one folder(may be temporary). And assign ${build.classpath}to that folder. Use <fileset dir="${build.classpath}"/>in your copy clause.
我认为您应该将所有以冒号分隔的 jar 文件放在一个根文件夹中。如果不可能，则创建一个单独的任务，将这些 jar 文件放入一个文件夹（可能是临时的）。并分配 ${build.classpath}到该文件夹。使用<fileset dir="${build.classpath}"/>您的副本子句。
I hope, it should help.
我希望，它应该有所帮助。
