win7+eclipse用maven构建hadoop项目注意事项

1、首先在Eclipse-》help-》Eclipse marketplace 搜索 maven 插件下载。

注意插件要与Eclipse版本对应，我的Eclipse版本为Luna的，插件就要下载Luna版本的，我下载的是 Maven Integration for Eclipse (Luna and newer) 1.5。否则的话新建maven工程的时候没有带Java工程。

2、其他环境配置和hadoop配置见参考链接。

3、我使用的是hadoop2.4.0.  pom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>com.rsclouds.hadoop</groupId>
	<artifactId>wordcount</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>wordcount</name>
	<url>http://maven.apache.org</url>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>
	<dependency>
		<groupId>org.apache.hadoop</groupId>
		<artifactId>hadoop-client</artifactId>
		<version>2.4.0</version>
	</dependency>
	<dependency>
		<groupId>org.apache.hadoop</groupId>
		<artifactId>hadoop-mapreduce-client-core</artifactId>
		<version>2.4.1</version>
	</dependency>
	<dependency>
		<groupId>org.apache.hadoop</groupId>
		<artifactId>hadoop-hdfs</artifactId>
		<version>2.4.1</version>
	</dependency>
	<dependency>
		<groupId>org.apache.hbase</groupId>
		<artifactId>hbase-client</artifactId>
		<version>0.98.0-hadoop2</version>
	</dependency>
	<dependency>
		<groupId>org.apache.hbase</groupId>
		<artifactId>hbase-server</artifactId>
		<version>0.98.0-hadoop2</version>
	</dependency>
	<dependency>
		<groupId>org.apache.hbase</groupId>
		<artifactId>hbase-server</artifactId>
		<version>0.98.0-hadoop2</version>
	</dependency>

		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
	</dependencies>
	<build>
		<pluginManagement>
			<plugins>
				<plugin>
					<groupId>org.eclipse.m2e</groupId>
					<artifactId>lifecycle-mapping</artifactId>
					<version>1.0.0</version>
					<configuration>
						<lifecycleMappingMetadata>
							<pluginExecutions>
								<pluginExecution>
									<pluginExecutionFilter>
										<groupId>org.apache.maven.plugins</groupId>
										<artifactId>maven-dependency-plugin</artifactId>
										<versionRange>[2.0,)</versionRange>
										<goals>
											<goal>copy-dependencies</goal>
										</goals>
									</pluginExecutionFilter>
									<action>
										<ignore />
									</action>
								</pluginExecution>
							</pluginExecutions>
						</lifecycleMappingMetadata>
					</configuration>
				</plugin>
			</plugins>
		</pluginManagement>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-dependency-plugin</artifactId>
				<executions>
					<execution>
						<id>copy-dependencies</id>
						<phase>package</phase>
						<goals>
							<goal>copy-dependencies</goal>
						</goals>
						<configuration>
							<outputDirectory>lib</outputDirectory>
							<overWriteReleases>false</overWriteReleases>
							<overWriteSnapshots>false</overWriteSnapshots>
							<overWriteIfNewer>true</overWriteIfNewer>
						</configuration>
					</execution>
				</executions>
			</plugin>
		</plugins>
	</build>
</project>

参考：http://blog.fens.me/hadoop-maven-eclipse/