如何在运行maven命令时修复system.getenv错误？

Question

我正在通过maven在eclipse上运行一个项目，我在我的系统上设置了一个环境变量，以便我的项目工作。

这是一个示例代码：

public class StepDefFile {

    WebDriver driver = CaptureScreenshot.driver;
    public static String configFilePath =System.getenv("configFilePath");

    @Given(Login to application")
    public void Login_to_application() throws Throwable {
        driver = Helper.initializeDriver(); 
    }
}

但是，当我运行mvn test时，我得到java nullPointerException，因为它在运行测试时无法找到config.properties文件。

请检查下面的图像以查找maven错误日志

我已经尝试过以下链接的解决方案，但它对我不起作用：

pass a java parameter from maven

Environment Variable with Maven

我的pom.xml文件如下：

<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>group</groupId>
<artifactId>artifact</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>name</name>
<url>http://maven.apache.org</url>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
                <source>1.8</source>
                <target>1.8</target>
                <executable>${env.JAVA_HOME}/bin/javac.exe</executable>
            </configuration>
        </plugin>

继续上面的pom

<plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-failsafe-plugin</artifactId>
            <version>3.0.0-M3</version>
            <executions>
                <execution>
                    <goals>
                        <goal>verify</goal>
                    </goals>
                    <configuration>
                        <systemPropertyVariables>
                            <configFilePath>${env.configFilePath}</configFilePath>
                        </systemPropertyVariables>
                        <includes>
                            <include>RunnerTest.java</include>
                        </includes>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>
<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

继续上面的pom

<dependencies>
    <dependency>
        <groupId>com.sun</groupId>
        <artifactId>tools</artifactId>
        <version>1.8</version>
        <scope>system</scope>
        <systemPath>${env.JAVA_HOME}/lib/tools.jar</systemPath>
    </dependency>
    <!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.4</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/commons-cli/commons-cli -->
    <dependency>
        <groupId>commons-cli</groupId>
        <artifactId>commons-cli</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
        <version>3.7</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.maven/maven-plugin-api -->
    <dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-plugin-api</artifactId>
        <version>3.5.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/xpp3/xpp3 -->
    <dependency>
        <groupId>xpp3</groupId>
        <artifactId>xpp3</artifactId>
        <version>1.1.4c</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-io -->
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-io</artifactId>
        <version>1.3.2</version>
    </dependency>
    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-java</artifactId>
        <version>3.11.0</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-java</artifactId>
        <version>1.2.5</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-jvm</artifactId>
        <version>1.2.5</version>
        <type>pom</type>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-jvm-deps</artifactId>
        <version>1.0.5</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>gherkin</artifactId>
        <version>2.12.2</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-junit</artifactId>
        <version>1.2.5</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>net.sourceforge.cobertura</groupId>
        <artifactId>cobertura</artifactId>
        <version>2.1.1</version>
    </dependency>
    <dependency>
        <groupId>net.masterthought</groupId>
        <artifactId>cucumber-reporting</artifactId>
        <version>3.15.0</version>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-all</artifactId>
        <version>2.0.2-beta</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>com.vimalselvam</groupId>
        <artifactId>cucumber-extentsreport</artifactId>
        <version>3.1.0</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.aventstack</groupId>
        <artifactId>extentreports</artifactId>
        <version>3.1.1</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>com.googlecode.json-simple</groupId>
        <artifactId>json-simple</artifactId>
        <version>1.1</version>
        <scope>test</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/log4j/log4j -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <dependency>
        <groupId>com.relevantcodes</groupId>
        <artifactId>extentreports</artifactId>
        <version>2.41.2</version>
        <scope>test</scope>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-firefox-driver -->
    <dependency>
        <groupId>org.seleniumhq.selenium</groupId>
        <artifactId>selenium-firefox-driver</artifactId>
        <version>3.141.59</version>
    </dependency>       
</dependencies>

我想通过将配置文件作为环境变量传递来通过maven运行上面的代码。

Answer 1

始终确保在添加计划在脚本中访问的系统环境变量时重新启动计算机。

这是详细的原因：

This behavior occurs because services that run under the Local System account inherit their environment from the Services.exe process. The Services.exe process receives the environment settings for the Local System account when Windows starts. Because the Services.exe process does not use Windows Messaging, when it receives messages that indicate that a value has changed after Windows starts, the Services.exe process does not update its environment settings. You cannot force a service that is running to acknowledge a dynamic change to the environment of the Local System account.（来自Microsoft支持网站）