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 ，它的工作正常。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。

我尝试过

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

但似乎不起作用。

如何将环境变量传递给蚂蚁任务？

编辑：不工作，我的意思是我得到一个错误， code>被引用在值
中使用时必须转义。如果我通过ANT_OPTS设置，我不会收到此错误。

解决方案

使用< property> 任务定义环境前缀：

 < 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：

 < property environment =env/> 
< echo message =我的路径是&$ {env.PATH }& quot;/> 
  

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.

I've tried

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

but that doesn't seem to work.

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

EDIT: 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.

解决方案

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

<property environment="env"/>

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;"/>

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