记录MAVEN构建hadoop

关键的是将maven打包成jar，在hadoop中执行

在pom.xml增加如下内容

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<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.3</version>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<mainClass>danache.spiderInMaven.MinTemperature</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>assembly</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>

运行mvn assembly:assembly

第二种：

<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>com.sysware.HelloWorld</mainClass>
</manifest>
</archive>
</configuration>
</plugin>

要加build，这个运行的是mvn clean package

之后在hadoop中直接

hadoop jar spiderInMaven-0.0.1-SNAPSHOT.jar /class5/temperature.txt /class5/out