如何在 ant 中访问属性中的属性 [英] How to acess property within a property in ant

问题描述

大家好，请看一下这段代码

Hi all please give a look to this code

在我的属性文件中我有win-x86.pc-shared-location=E:\Ant_Scripts

in my properties file i have win-x86.pc-shared-location=E:\Ant_Scripts

现在我正在尝试从我的 build.xml 中调用 PrintInstallerName_build，而 PrintInstallerName_build 在 test.xml 中.在 build.xml 文件中，${platform.id} 在调用目标中具有 value=win-x86 并且在被调用目标 param1 中也具有 value=win-x86

Now below i am trying to call PrintInstallerName_build from my build.xml,while as PrintInstallerName_build is in test.xml. In build.xml file,${platform.id} has value=win-x86 in the calling target and in called target param1 also has value=win-x86

    <target name="PrintInstallerName" >
    <echo>PlatForm.Id====>${platform.id}</echo>
    <ant antfile="test.xml" target="PrintInstallerName_build">
        <property name="param1" value="${platform.id}"/>
    </ant>


<target name="PrintInstallerName_build" >
       <echo>${param1.pc-shared-location}</echo><!--${param1.pc-shared-location}-->
        <echo>${param1}.pc-shared-location}</echo><!--win-x86.pc-shared-location-->
    <echo>${win-x86.pc-shared-location}</echo><!--E:\\Ant_Scripts-->
</target>

正如你所看到的，只有最后一条语句给出了正确的输出，但它是硬编码的，我想使用 param1 并且输出应该是 E:\\Ant_Scripts 我试图使用 $ 和 @ 但没有有效，可能是我在某个地方做错了，有人可以帮忙吗，我很震惊，明天就是它的 DOD.

as you can see only the last statement gives correct output but it is hardcoded,i want to use param1 and the output should be E:\\Ant_Scripts i tried to use $ and @ but none works,may be i am doing wrong somewhere can someone help please,i am struck and tomorrow is its DOD.

推荐答案

<target name="PrintInstallerName_process" >
       <echo>${param1}</echo><!--win-x86-->

        <macrodef name="testing">
                <attribute name="v" default="NOT SET"/>
                <element name="some-tasks" optional="yes"/>
                    <sequential>
        <echo>Source Dir of ${param1}: ${@{v}}</echo><!-- Dir of Win-x86:E:\Ant_Scripts-->
                                                    <some-tasks/>
                    </sequential>
            </macrodef>

            <testing v="${param1}.pc-shared-location">
                <some-tasks>

                </some-tasks>
            </testing>
    </target> 

这就是它的工作方式，对我来说它仍然很好用 @sudocode 你的提示让我到了那里，所以非常感谢你

this is the way it works and for me it works fine anyways @sudocode your tip took me there so thank you very much

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