如何通过 Maven 命令修复运行时的 system.getenv 错误？

Question

我正在通过 Maven 运行在 eclipse 上创建一个项目，并且我在我的系统上设置了一个环境变量以使我的项目运行。

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 我得到 java nullPointerException 因为它在运行时无法找到 config.properties 文件测试。

请检查下图的 Maven 错误日志

我已经尝试过以下链接中的解决方案，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>

我想通过将我的配置文件作为环境变量传递给 Maven 运行上面的代码。

Answer 1

在添加您计划在脚本中访问的系统环境变量时，务必确保重新启动计算机。

详细原因如下：

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.（来源 Microsoft 支持网站）

如何通过 Maven 命令修复运行时的 system.getenv 错误？

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如何通过 Maven 命令修复运行时的 system.getenv 错误？