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Editorial Team
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Asked: 2026-05-15T08:09:07+00:00

I’m recently assigned a task to make ant be able to build war packages

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I’m recently assigned a task to make ant be able to build war packages for different environments. I’m almost done except one feature.

The ant accepts an env parameter by like -Denv=DEV, and use different configuration files to make the war package. But the default target is start which will build, deploy and start the tomcat. I don’t want ant to deploy the war neither start the server when I pass in the -Denv=PROD arg. I only want ant to build the ROOT.war. It’s enough.

I know I can just type one more word to achieve this goal, but you know we are all lazy. 😀

Does anyone know how to change the default target according to the command line argument?
My requirements are as below:

  1. ant -Denv=DEV will build, deploy, and start the server
  2. ant -Denv=PROD will only build the ROOT.war
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1 Answer

  1. Editorial Team

    I suggest that you define targets in your build.xml file called “DEV” and “PROD” and then invoke Ant as:

    ant DEV

    or 

    ant PROD

    If you want to stick with your current approach of using a system property to select the target, then @krock’s answer seems to be the way to go. (But I don’t see any advantage in that approach though.)

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