将命令行参数传递给 ant [英] passing command line arguments to ant

问题描述

我对 ant 比较陌生，在学校我有一个作业来做一个构建文件.我的问题之一是将其名称(或路径)作为 ant 参数的文件复制到/foldercopy".我需要做类似的事情:

I am relatively new in ant, at school I have an assignment to do a build file. One of my questions is to copy to "/foldercopy" the file whose name(or path) is taken as argument for ant. I need to do something like:

ant cpfile 文件.txt

ant cpfile file.txt

这样蚂蚁就会把file.txt复制到/foldercopy.我在谷歌上搜索了很多，但我只能找到带有-Darg"的东西，但我的老师说这是不正确的.有什么办法吗?

So ant will copy the file.txt to /foldercopy. I searched a lot on google but all I could find was something with "-Darg", but my teacher said that it's not correct. Is there any way to do it?

推荐答案

ant 的普通命令行参数被认为是目标名称，所以如果你想将参数传递给你的目标，你需要使用属性，通过 -D:

Plain command line arguments to ant are considered to be target names, so if you want to pass arguments to your target you need to use properties, via -D:

ant -Dfile=file.txt cpfile

并在 build.xml 中以 ${file} 的形式访问该值

and access the value as ${file} inside build.xml

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