在這一節中我們來說一下應該怎樣把Hadoop集成到Eclipse中的，在官方中提供的有相關插件來集成eclipse的，但都是對Hadoop1.x的集成，下面我們進行自己適合版本的插件的生成。
如圖：
爲了能夠自定義插件，我們需要hadoop2.x的插件的源碼包，hadoop2x-eclipse-plugin-master.zip這個源碼包在網上不太容易找到，在這裏提供下載。
1、解壓下載後的源碼包
2、cd src/contrib/eclipse-plugin,進入到eclipse-plugin目錄
3、刪除掉這個目錄下的ivy和ivy.xml這兩個文件
4、修改build.xml文件，如下修改property的前5處配置
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<project default="jar" name="eclipse-plugin">
<property name="jdk.home" value="/Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home />
<property name="hadoop.version" value="2.2.0" />
<property name="hadoop.home" value="/usr/local/soft/hadoop-2.2.0" />
<property name="eclipse.version" value="3.8" />
<property name="eclipse.home" value="/Applications/adt-bundle/eclipse" />
<property name="root" value="${basedir}" />
<property file="${root}/build.properties" />
<property name="name" value="${ant.project.name}" />
<property name="src.dir" location="${root}/src" />
<property name="build.contrib.dir" location="${root}/build/contrib" />
<property name="build.dir" location="${build.contrib.dir}/${name}" />
<property name="build.classes" location="${build.dir}/classes" />
<property name="javac.deprecation" value="off" />
<property name="javac.debug" value="on" />
<property name="build.encoding" value="UTF-8" />
<path id="eclipse-sdk-jars">
<fileset dir="${eclipse.home}/plugins/">
<include name="org.eclipse.ui*.jar" />
<include name="org.eclipse.jdt*.jar" />
<include name="org.eclipse.core*.jar" />
<include name="org.eclipse.equinox*.jar" />
<include name="org.eclipse.debug*.jar" />
<include name="org.eclipse.osgi*.jar" />
<include name="org.eclipse.swt*.jar" />
<include name="org.eclipse.jface*.jar" />
<include name="org.eclipse.team.cvs.ssh2*.jar" />
<include name="com.jcraft.jsch*.jar" />
</fileset>
</path>
<path id="project-jars">
<fileset file="${build.dir}/lib/*.jar" />
</path>
<target name="init" unless="skip.contrib">
<echo message="contrib: ${name}" />
<mkdir dir="${build.dir}" />
<mkdir dir="${build.classes}" />
<mkdir dir="${build.dir}/lib" />
<copy todir="${build.dir}/lib/" verbose="true">
<fileset dir="${hadoop.home}/share/hadoop/mapreduce">
<include name="hadoop*.jar" />
<exclude name="*test*" />
<exclude name="*example*" />
</fileset>
<fileset dir="${hadoop.home}/share/hadoop/common">
<include name="hadoop*.jar" />
<exclude name="*test*" />
<exclude name="*example*" />
</fileset>
<fileset dir="${hadoop.home}/share/hadoop/hdfs">
<include name="hadoop*.jar" />
<exclude name="*test*" />
<exclude name="*example*" />
</fileset>
<fileset dir="${hadoop.home}/share/hadoop/yarn">
<include name="hadoop*.jar" />
<exclude name="*test*" />
<exclude name="*example*" />
</fileset>
<fileset dir="${hadoop.home}/share/hadoop/common/lib">
<include name="protobuf-java-*.jar" />
<include name="log4j-*.jar" />
<include name="commons-cli-*.jar" />
<include name="commons-collections-*.jar" />
<include name="commons-configuration-*.jar" />
<include name="commons-lang-*.jar" />
<include name="jackson-core-asl-*.jar" />
<include name="jackson-mapper-asl-*.jar" />
<include name="slf4j-log4j12-*.jar" />
<include name="slf4j-api-*.jar" />
<include name="guava-*.jar" />
<include name="hadoop-annotations-*.jar" />
<include name="hadoop-auth-*.jar" />
<include name="commons-cli-*.jar" />
<include name="netty-*.jar" />
</fileset>
</copy>
</target>
<target name="compile" depends="init" unless="skip.contrib">
<echo message="contrib: ${name}" />
<javac fork="true" executable="${jdk.home}/bin/javac" encoding="${build.encoding}" srcdir="${src.dir}" includes="**/*.java" destdir="${build.classes}" debug="${javac.debug}" deprecation="${javac.deprecation}" includeantruntime="on">
<classpath refid="eclipse-sdk-jars" />
<classpath refid="project-jars" />
</javac>
</target>
<target name="jar" depends="compile" unless="skip.contrib">
<pathconvert property="mf.classpath" pathsep=",lib/">
<path refid="project-jars" />
<flattenmapper />
</pathconvert>
<jar jarfile="${build.dir}/hadoop-${hadoop.version}-eclipse-${eclipse.version}-plugin.jar" manifest="${root}/META-INF/MANIFEST.MF">
<manifest>
<attribute name="Bundle-ClassPath" value="classes/,lib/${mf.classpath}" />
</manifest>
<fileset dir="${build.dir}" includes="classes/ lib/" />
<fileset dir="${root}" includes="resources/ plugin.xml" />
</jar>
</target>
<target name="clean">
<echo message="contrib: ${name}" />
<delete dir="${build.dir}" />
</target>
</project>
6、把生成的插件命名爲hadoop-eclipse-plugin-2.2.0.jar,並複製到eclipse安裝目錄的plugins中，並重新打開eclipse
7、配置eclipse中的hadoop
