Question

我是Maven的新手。我创建了一个用于MRunit测试的Java项目，并将其转换为Maven项目。我已将下面的依赖项添加到pom.xml文件中。但是，我没有看到Maven Dependencies文件夹或从互联网下载到项目中的任何内容。请指导我。

<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>MRUnitTest</groupId>
<artifactId>MRUnitTest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
    <sourceDirectory>src</sourceDirectory>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <dependencies>
                <dependency>
                    <groupId>org.apache.mrunit</groupId>
                    <artifactId>mrunit</artifactId>
                    <version>0.9.0-incubating</version>
                    <classifier>hadoop1</classifier>
                </dependency>
                <dependency>
                    <groupId>org.apache.hadoop</groupId>
                    <artifactId>hadoop-core</artifactId>
                    <version>1.2.1</version>
                </dependency>
            </dependencies>
            <configuration>
                <source>1.7</source>
                <target>1.7</target>
            </configuration>
        </plugin>
    </plugins>
</build>

Answer 1

您将找不到带分类器hadoop1的org.apache.mrunit。删除分类器属性和maven命令

Answer 2

依赖项位于错误的位置。将它移到构建/插件块之外，即

<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>MRUnitTest</groupId>
    <artifactId>MRUnitTest</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.apache.mrunit</groupId>
            <artifactId>mrunit</artifactId>
            <version>0.9.0-incubating</version>
            <classifier>hadoop1</classifier>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-core</artifactId>
            <version>1.2.1</version>
        </dependency>
    </dependencies>

    <build>
       ....
    </build>
</project>

根据mrunit doc，分类器很好。但你正在选择hadoop 1。

不为MRunit下载的Maven依赖项

2 个答案: