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最新推荐文章于 2025-06-12 17:09:48 发布

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本文详细介绍了一个使用Hadoop MapReduce实现的WordCount示例项目。该项目通过Maven进行管理，并依赖于Hadoop 2.6.4版本的相关组件。文中展示了如何配置pom.xml文件以整合必要的依赖库，并设置构建插件以指定项目的主类。

<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>cn.itcast.Mapreduce</groupId>
<artifactId>MyWordCount</artifactId>
<version>1.0</version>

<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<version>2.6.4</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-hdfs</artifactId>
<version>2.6.4</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-client</artifactId>
<version>2.6.4</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-mapreduce-client-core</artifactId>
<version>2.6.4</version>
</dependency>
</dependencies>

<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>cn.itcast.mapreduce.WordCountDriver</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>

</project>