如何将参数从 jenkins 传递给 Maven 项目

Question

I want to learn how to pass parameter to maven project from jenkins. Firstly i chose General Configuration in Jenkins and click "This project is parameterized" then

Name => my_parameter

Choices => desktop, ipad, tablet

Then, Source Management => git repositories i wrote git repo link,it was OK.

Last Step Build => Execute Shell => Command => mvn test -DdeviceType=$my_parameter

My maven Project has a parameter named String device.

String device;

public static DesiredCapabilities caps=null;


@BeforeSuite
public void initializeDriver() throws MalformedURLException{
    device=System.getenv("deviceType");
    System.out.println("device type: "+ device);

    if (device.contains("ipad")) {
        caps = new DesiredCapabilities();
        caps.setCapability("browserName", "iPad");
        caps.setCapability("platform", "MAC");
        caps.setCapability("device", "iPad Mini 4");
        caps.setCapability("browserstack.local", "true");
        caps.setCapability("browserstack.debug", "true");
        caps.setCapability("safariAllowPopups", "true");
        caps.setCapability("acceptSslCerts", "true");
        caps.setCapability("browserstack.autoWait", "0");
        caps.setCapability("requireWindowFocus", "true");

        driver=new RemoteWebDriver(new URL(URL), caps);
    }

Then build with parameters on jenkins

 $ /bin/sh -xe /var/folders/j9/gyf9715j0hs32m4gd8h_gw4m55zss4 /T/hudson7304038831620598368.sh
 + mvn test -DdeviceType=desktop
 [INFO] Scanning for projects...
 device type: null[0m

Why does device type return null? What's wrong? Thanks for your helps...

Answer 1

Well, at the least, the " -D " commmand-line parameter to " mvn " sets "system properties", not "environment variables". Instead of calling " System.getenv() ", call " System.getProperty() ".

Answer 2

For someone trying to pass variable from Jenkins pipeline to local pom.xml file., what you can do is pass the argument through mvn clean install console command.

in your POM.xml

    <properties>
       <maven.test.skip>false</maven.test.skip>
    </properties>

use this variable setting up plugin

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.22.1</version>
    <configuration>
     <skipTests>${maven.test.skip}</skipTests>
     <skip>${maven.test.skip}</skip>
    </configuration>
</plugin>

Now we will set up Jenkins side of things:

What I did here is created a boolean build parameter value SKIP_JUNIT_TEST that can control the value passed through arguments.

After creating build parameter, in your pipeline code you can pass the argument like this:

sh 'mvn clean install -Dmaven.test.skip=${SKIP_JUNIT_TEST}'

here maven.test.skip is the variable I have set in pom.xml

Answer 3

i finally found answer by trying. But i dont sure whether thats the best way for solution. i chose

BUİLD => invoke top-level maven targets.
Goals => test

But important issue is parameter name in Jenkins must be same name your maven projects variable name.

 device=System.getenv("deviceType");

Then build with parameters on jenkins it works!