将环境变量传递给 ant 任务，没有 ANT_OPTS [英] Passing environment variable to ant task, without ANT_OPTS

问题描述

我正在调用 Jasper ant 任务，我想设置 org.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING 环境变量.我可以将 ANT_OPTS 设置为 -Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false 并且它可以正常工作.但是，我想要一个可以放入 build.xml 的设置，所以我不需要告诉我的队友他们需要设置 ANT_OPTS.

I'm calling the Jasper ant task, and I want to set the org.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING environment variable. I can set ANT_OPTS to be -Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false and it works correctly. However, I want a setting I can put into the build.xml, so I don't need to tell my teammates that they need to set ANT_OPTS.

我试过了

<property name="env.org.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING" 
    value="false"/>

但这似乎不起作用.

如何将环境变量传递给 ant 任务?

How can I pass an environment variable to an ant task?

通过不起作用"，我的意思是我收到一个错误，说一个属性 用 " 引用，在值中使用时必须转义 如果我通过 ANT_OPTS 进行设置，则不会出现此错误.

By "doesn't work", I mean I get an error saying an attribute is quoted with " which must be escaped when used within the value If I set it via ANT_OPTS, I do not get this error.

推荐答案

使用 任务定义环境前缀:

Use the <property> task to define an environmental prefix:

<property environment="env"/>

现在，您可以简单地将 env. 添加到您的环境变量中，并将其视为已定义的 Ant 属性:

Now, you can simply prepend env. to your environment variable and treat it like an already defined Ant property:

 <property environment="env"/>
 <echo message="My path is &quot;${env.PATH}&quot;"/>

这篇关于将环境变量传递给 ant 任务，没有 ANT_OPTS的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！