Cucumber 和 Spring boot 集成有错误

Question

Spring boot 和 cucumber 集成，当我将这个项目打包成 jar 时，使用 mvn package 命令并生成 advvic-1.0.jar。但是，如果我运行这个 jar

java -jar target/advvic-1.0.jar

我收到此错误：

原因：cucumber.runtime.CucumberException：未找到后端。请确保您的 CLASSPATH 上有一个后端模块。

但是，如果我提取这个 jar，我会在 lib 文件夹中找到 cucumber-java.jar

这是我的 pom：

<?xml version="1.0" encoding="UTF-8"?>
<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>com.advvic.cucumber.spring</groupId>
    <artifactId>advvic</artifactId>
    <version>1.0</version>
    <packaging>jar</packaging>

    <name>cucumber-spring-boot</name>
    <url>http://maven.apache.org</url>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>

        <spring-boot.version>1.4.1.RELEASE</spring-boot.version>

        <cucumber.version>1.2.5</cucumber.version>
        <selenium.version>3.0.1</selenium.version>
        <htmlunit.version>2.13</htmlunit.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-jdbc</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-java</artifactId>
            <version>${cucumber.version}</version>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-core</artifactId>
            <version>${cucumber.version}</version>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-spring</artifactId>
            <version>${cucumber.version}</version>
        </dependency>

        <dependency>
            <groupId>info.cukes</groupId>
            <artifactId>cucumber-junit</artifactId>
            <version>${cucumber.version}</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>

        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>20.0</version>
        </dependency>

        <!--Selenium server dependency is for version 3 and up -->
        <!--https://mvnrepository.com/artifact/org.seleniumhq.selenium/selenium-server -->
        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-server</artifactId>
            <version>${selenium.version}</version>
        </dependency>

        <dependency>
            <groupId>org.seleniumhq.selenium</groupId>
            <artifactId>selenium-java</artifactId>
            <version>${selenium.version}</version>
        </dependency>

        <dependency>
            <groupId>xml-apis</groupId>
            <artifactId>xml-apis</artifactId>
            <version>1.4.01</version>
        </dependency>

        <dependency>
            <groupId>org.javassist</groupId>
            <artifactId>javassist</artifactId>
            <version>3.20.0-GA</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring-boot.version}</version>
                <executions>
                    <execution>
                        <configuration>
                            <executable>true</executable>
                            <attach>true</attach>
                        </configuration>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.5.1</version>
                <configuration>
                    <executable>true</executable>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

Answer 1

我想用作 Cucumber 测试的运行器的 Spring Boot 应用程序遇到了完全相同的问题。

问题在于 Spring Boot 以自己的方式重新打包所有内容，因此默认 Cucumber ResourceLoaders 很难找到任何 cucumber.runtime.Backend 类以及功能文件和步骤定义。

我最终做的是实现一个自定义 cucumber.runtime.io.ResourceLoader 使用 Spring 特定的类来搜索类路径。 我在https://stackoverflow.com/a/17283721/3216618得到了这个想法

PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
String locationPattern = ... use path and suffix to 
Resource[] resources = resolver.getResources(locationPattern);

最后你需要从找到的 org.springframework.core.io.Resource[] 中创建一个 Iterable

Answer 2

也许这可以帮助你：

       <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <configuration>
                <requiresUnpack>
                    <dependency>
                        <groupId>info.cukes</groupId>
                        <artifactId>cucumber-java</artifactId>
                    </dependency>
                </requiresUnpack>
            </configuration>
        </plugin>