Apache Ant - Intellij Idea 社区无法识别 for loop 命令

Question

我想创建一个 for 循环来遍历文件的行。 我做到了：

<loadfile property="download.file" srcfile="download_list.txt"/>

<target name="criarArvore">
    <mkdir dir="${download.dir}"/>
    <mkdir dir="${domain.dir}"/>
</target>

<target name="download" depends="criarArvore">
    <for param="line" list="${download.file}" delimiter="${line.separator}">
        <sequential>
            <echo>@{line}</echo>
        </sequential>
    </for>
</target>

但在<for> intellij 警告我：'无法解析符号“for”'。 当我运行我收到的脚本时：

c:\xxx\build.xml:22: Problem: failed to create task or type for
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.

Answer 1

<for> task 来自第三方Ant-Contrib library。

要使用 Ant-Contrib，请下载 ant-contrib-1.0b3-bin.zip，从中提取 ant-contrib-1.0b3.jar，然后按照 how to install Ant-Contrib 上的说明进行操作。