依赖项的Maven属性标记和版本

Question

当我从pom文件的属性部分中定义的键中的依赖项使用版本时，依赖项不会被下载，但是当我硬编码依赖项的版本时，依赖项将被下载。

<properties>
    <cucumber-version>1.2.4</cucumber-version>
    <junit-version>1.2.4</junit-version>
</properties>

<dependencies>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-java</artifactId>
        <version>{cucumber-version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-junit</artifactId>
        <version>{cucumber-version}</version>
        <scope>test</scope>
    </dependency>
 <dependencies>

对于上面的块，当我运行mvn干净测试时，控制台中的错误显示为:-

[ERROR] Failed to execute goal on project MavenCucumber: Could not resolve dependencies for project com.manish.cucumber:MavenCucumber:jar:1.0-SNAPSHOT: Failed to collect dependencies at info.cukes:cucumber-java:jar:{junit-version}: Failed to read artifact descriptor for info.cukes:cucumber-java:jar:{junit-version}: Could not transfer artifact info.cukes:cucumber-java:pom:{junit-version} from/to central (http://repo.maven.apache.org/maven2): Illegal character in path at index 61: http://repo.maven.apache.org/maven2/info/cukes/cucumber-java/{cucumber-version}/cucumber-java-{cucumber-version}.pom -> [Help 1]

完全pom.xml

<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 0.xsd"> 4.0.0 com.manish.cucumber MavenCucumber jar 1.0-快照MavenCucmber http://maven.apache.org

<properties>
    <cucumber-version>1.2.4</cucumber-version>
    <junit-version>1.2.4</junit-version>
</properties>

<dependencies>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-java</artifactId>
        <version>{junit-version}</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>info.cukes</groupId>
        <artifactId>cucumber-junit</artifactId>
        <version>{junit-version}</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.12.2</version>
        <configuration>
            <argLine>-Duser.language=en</argLine>
            <argLine>-Xmx1024m</argLine>
            <argLine>-XX:MaxPermSize=256m</argLine>
            <argLine>-Dfile.encoding=UTF-8</argLine>
            <useFile>false</useFile>
        </configuration>
        </plugin>
    </plugins>
</build>

​

我使用的Maven版本是Maven-3。

为什么maven试图从url中获取依赖项，如下所示：

repo.maven.apache.org/maven2/info/cukes/cucumber-java/{cucumber-version}/cucumber-java-{cucumber-version}.pom

为什么不用在属性标记中定义的1.2.4替换{黄瓜-version}？

Answer 1

看来你的语法不对。它应该以$符号作为前缀。

将${junit-version}改为{junit-version}