Java如何使用Jenkins中的环境变量？

3 月，2 周 Questions & Answers 2760

我试图通过Java访问Jenkins中的环境变量：

 public static WebDriver getJenkinsDriver() throws MalformedURLException {
        DesiredCapabilities caps = new DesiredCapabilities();
        String url = "";    
        Map<String, String> env = System.getenv();
        for (String envName : env.keySet()) {
            System.out.format("%s=%s%n", envName, env.get(envName));
        }
        if (System.getenv("SELENIUM_SERVICE").equalsIgnoreCase("saucelabs")) {
            caps.setBrowserName(System.getenv("SELENIUM_BROWSER"));
            caps.setVersion(System.getenv("SELENIUM_VERSION"));
            caps.setCapability(CapabilityType.PLATFORM, System.getenv("SELENIUM_PLATFORM"));
            url = "http://ricardo...saucelabs.com:80/wd/hub";
            ...
        }
    }

命令的输出：

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:JAVA_HOME=/usr/lib/jvm/java-8-oracle/:CLASSPATH=$JAVA_HOME/lib/:CLASSPATH:PATH=$JAVA_HOME/bin/:PATH:$M2_HOME=/usr/share/maven/:M2=$M2_HOME/bin:PATH=$M2:$PATH
XAUTHORITY=/home/ricardoramos/.Xauthority
XMODIFIERS=@im=ibus
XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/
GDMSESSION=ubuntu
MANDATORY_PATH=/usr/share/gconf/ubuntu.mandatory.path
TEXTDOMAINDIR=/usr/share/locale/
GTK_IM_MODULE=ibus
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-JQr3Phzwn6
DEFAULTS_PATH=/usr/share/gconf/ubuntu.default.path
XDG_CURRENT_DESKTOP=Unity
SWT_GTK3=0
UPSTART_SESSION=unix:abstract=/com/ubuntu/upstart-session/1000/2230
QT4_IM_MODULE=ibus
SESSION_MANAGER=local/falcon:@/tmp/.ICE-unix/2511,unix/falcon:/tmp/.ICE-unix/2511
LOGNAME=ricardoramos
JOB=dbus
PWD=/home/ricardoramos
IM_CONFIG_PHASE=1
LANGUAGE=pt_BR:pt:en
SHELL=/bin/bash 
...

但当您输入if条件并显示NullPointerException消息时，我将Jenkins设置为：

必须在结束时声明环境变量。bashrc文件或詹金斯本人是否明智地将这些“全局属性”变量与操作系统共享

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Java如何使用Jenkins中的环境变量？

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