Get Jenkins build parameter inside java code

Question

I have a question about build parameters in Jenkins.

I want add build parameter (url) on Jenkins, and write there any URL, and then use it in code.

Is it posible, and if it is, how I can do this?

System.getenv("PARAM_NAME"); isn't working for me.

Thanks a lot =)

could you get an answer to this question? I have similar scenario and looking for an apt solution for it. I was also trying System.getenv but does not seem to work. In y case, my jenkins job is parameterized and I try to get that parameter value in java code in my android app — Sushil
– Sushil, Commented Aug 9, 2016 at 8:50

mainframer · Accepted Answer · 2016-04-11 12:41:31Z

1

If you are writing java code or jenkins plugin for instance, you can simply do this:

import hudson.model.AbstractProject;
AbstractProject job.getLastBuild().getBuildVariables().containsKey("PARAM_NAME")

answered Apr 11, 2016 at 12:41

mainframer

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user600838 Over a year ago

Since the OP wants to fetch the value, I would think get("PARAM_NAME") is a better suggestion than containsKey("PARAM_NAME"), which in this case only determines whether a build-parameter named "PARAM_NAME" exists.

Gabe Sechan · Accepted Answer · 2016-04-11 11:58:18Z

0

You could have jenkins modify your values.xml file before compiling. That would be the easiest way I can quickly think of.

answered Apr 11, 2016 at 11:58

Gabe Sechan

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Ivan B Over a year ago

can you provide me with some example?

S.Spieker · Accepted Answer · 2016-04-11 11:59:25Z

0

I think you are looking for the EnvInject+Plugin.

Some use cases

To remove inherited environment variables (PATH, ANT_HOME, ...) at node level (master/slave), available by default for a job run.
To inject variables in the first step of the job (before the SCM checkout)
To inject variables based on user parameter values
To execute an initialization script before a SCM checkout.
To execute an initialization script after a SCM checkout
To inject variables as a build step obtained from a file filled in by a previous build step
To know environment variables used for a build

answered Apr 11, 2016 at 11:59

S.Spieker

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4 Comments

Ivan B Over a year ago

Yes, it looks like I looking for, but I can't find any useful article how i can get values(of environment variables) in java code.

S.Spieker Over a year ago

You can use System.getenv("PARAM_NAME"); if you used the plugin to inject the variable into the environment. Or maybe System.getProperty("PARAM_NAME")

Ivan B Over a year ago

1. I've enable " Inject environment variables to the build process" section. 2. Then I've add "TEST_STRING=hello world" in "Properties Content". 3. In MainActivity class I've add "System.getenv("TEST_STRING")". And when I build application, I see that value returned by System.getenv("TEST_STRING") is "null". what I did wrong?

Sushil Over a year ago

@IvanB... could you get an answer to this question? I have similar scenario and looking for an apt solution for it. I was also trying System.getenv but does not seem to work. In y case, my jenkins job is parameterized and I try to get that parameter value in java code in my android app

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