问题描述
如果要设置环境变量,我想设置一个属性.我在其中搜索了很多内容,发现的内容与下面的代码类似,但是我不断收到错误消息:
I'd like to set a property if an environment variable is set. I googled a lot on it and all I found is something similar to the code below, but I keep getting the error:
那是我正在尝试的代码,它位于pom.xml中,我运行了命令-
That's the code I'm trying, its inside a pom.xml and I ran the command -
mvn-错误部署
当然,如果您对如何根据环境变量内容在pom.xml中设置属性有其他建议,我将很高兴获得任何其他解决方案.
Of course, I'll be happy to get any other solution, if you have other suggestion on how to set a property in pom.xml depending on an environment variable content.
谢谢,以利
<distributionManagement>
.....
</distributionManagement>
<properties>
<tasks>
<taskdef resource="net/sf/antcontrib/antcontrib.properties"
classpathref="maven.plugin.classpath" />
<if>
<condition>
<equals arg1="${env.WAS60_HOME}" arg2=""\>
</condition>
<then>
<was60.home>${env.WAS60_HOME}</was60.home>
<javac>${was60.home}/java/bin/javac</javac>
</then>
</if>
<if>
<condition>
<equals arg1="${env.WAS85_HOME}" arg2=""\>
</condition>
<then>
<was85.home>${env.WAS85_HOME}</was60.home>
<javac>${was85.home}/java/bin/javac</javac>
</then>
</if>
</tasks>
</properties>
<profiles>
<profile>
<id>was.base.v60</id>
<dependencies>
<dependency>
....
<systemPath>${was60.home}/java/jre/lib/xml.jar</systemPath>
</dependency>
.....
</dependencies>
</profile>
<profile>
<id>was.base.v85</id>
<dependencies>
<dependency>
....
<systemPath>${was85.home}/java/jre/lib/xml.jar</systemPath>
</dependency>
.....
</dependencies>
</profile>
</profiles>
推荐答案
显然,没有办法在Maven中执行正确的IF-THEN-ELSE语句.至少没有我发现的.
Apparently there is no way to do a proper IF-THEN-ELSE sentence in Maven. At least none that I found.
我发现最接近的东西是使用激活"标签.如果符合配置文件中的条件,它将激活该配置文件.
The closest thing I found was using the "activation" tag. which will activate the profile if the condition in it is met.
Maven 2.0.X在多种情况下存在一些错误,不确定现在的状态是什么-
There is some bug on multiple conditions in Maven 2.0.X, not sure what's the status of it now -
http://jira.codehaus.org/browse/MNG-4565
因此,这里的问题回答了一个代码示例-
So, a code example is answered on the question here -
Maven 2:运行maven-replacer-plugin有条件替换值?
但是,如果您想做类似<<如果...然后...其他>>您将要撞到墙上.当然,还有其他方法,我认为这是有目的的,因此您必须遵循Maven的方法.
But if you want to do something like << IF ... Then ... Else >> You're going to hit you head on a wall doing it. There are other ways, of course and I assume it is done in purpose, so you'll have to follow Maven way.
感谢所有尝试提供帮助的人伊利亚胡(Elyahu)
Thanks to all that tried to helpElyahu
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