Ant
1）下载
http://ant.apache.org/bindownload.cgi
apache-ant-1.9.4-bin.zip
2）解压到一个盘，如图所示：
3）.环境变量的配置
新建ANT_HOME=E:\ant\apache-ant-1.9.4-bin\apache-ant-1.9.4
在PATH后面加;%ANT_HOME%\bin
4）cmd 测试一下是否配置正确
ant version 如图所示：
Hadoop
1).下载hadoop包
hadoop-2.6.0.tar.gz
解压到本地磁盘，如图所示：
下载hadoop2x-eclipse-plugin源代码
1）目前hadoop2的eclipse-plugins源代码由github脱管，下载地址是https://github.com/winghc/hadoop2x-eclipse-plugin，然后在右侧的Download ZIP连接点击下载，如图所示：
2）下载hadoop2x-eclipse-plugin-master.zip
解压到本地磁盘，如图所示：
编译hadoop-eclipse-plugin插件
1.hadoop2x-eclipse-plugin-master解压在E：盘打开命令行cmd，切换到E:\hadoop\hadoop2x-eclipse-plugin-master\src\contrib\eclipse-plugin 目录，如图所示：
2.执行ant jar
其中build.xml 文件内容如下：
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<project default="jar" name="eclipse-plugin">
<property name="name" value="${ant.project.name}" />
<property name="root" value="${basedir}" />
<property name="hadoop.root" location="C:/Users/Administrator/Desktop/hadoop-1.2.0" />
<property name='version' value='1.2.0' />
<property name='eclipse.home' location='C:/My Program/eclipse' />
<property name="build.dir" location="${hadoop.root}/build/contrib/${name}" />
<property name="build.classes" location="${build.dir}/classes" />
<property name="src.dir" location="${root}/src/java" />
<path id="eclipse-sdk-jars">
<fileset dir="${eclipse.home}/plugins/">
<include name="org.eclipse.ui*.jar" />
<include name="org.eclipse.jdt*.jar" />
<include name="org.eclipse.core*.jar" />
<include name="org.eclipse.equinox*.jar" />
<include name="org.eclipse.debug*.jar" />
<include name="org.eclipse.osgi*.jar" />
<include name="org.eclipse.swt*.jar" />
<include name="org.eclipse.jface*.jar" />
<include name="org.eclipse.team.cvs.ssh2*.jar" />
<include name="com.jcraft.jsch*.jar" />
</fileset>
</path>
<!-- Override classpath to include Eclipse SDK jars -->
<path id="classpath">
<fileset dir="${hadoop.root}">
<include name="*.jar" />
</fileset>
<path refid="eclipse-sdk-jars" />
</path>
<target name="compile">
<mkdir dir="${build.dir}/classes" />
<javac encoding="ISO-8859-1" srcdir="${src.dir}" includes="**/*.java" destdir="${build.classes}" debug="on" deprecation="off">
<classpath refid="classpath" />
</javac>
</target>
<!-- Override jar target to specify manifest-->
<target name="jar" depends="compile">
<mkdir dir="${build.dir}/lib" />
<copy file="${hadoop.root}/hadoop-core-${version}.jar" tofile="${build.dir}/lib/hadoop-core.jar" verbose="true" />
<copy file="${hadoop.root}/lib/commons-cli-1.2.jar" todir="${build.dir}/lib" verbose="true" />
<copy file="${hadoop.root}/lib/commons-configuration-1.6.jar" todir="${build.dir}/lib" verbose="true" />
<copy file="${hadoop.root}/lib/commons-httpclient-3.0.1.jar" todir="${build.dir}/lib" verbose="true" />
<copy file="${hadoop.root}/lib/jackson-core-asl-1.8.8.jar" todir="${build.dir}/lib" verbose="true" />
<copy file="${hadoop.root}/lib/commons-lang-2.4.jar" todir="${build.dir}/lib" verbose="true" />
<copy file="${hadoop.root}/lib/jackson-mapper-asl-1.8.8.jar" todir="${build.dir}/lib" verbose="true" />
<jar jarfile="${build.dir}/hadoop-${name}-${version}.jar" manifest="${root}/META-INF/MANIFEST.MF">
<fileset dir="${build.dir}" includes="classes/ lib/" />
<fileset dir="${root}" includes="resources/ plugin.xml" />
</jar>
</target>
</project>
其中MAINIFEST文件内容如下：
Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: MapReduce Tools for Eclipse
Bundle-SymbolicName: org.apache.hadoop.eclipse;singleton:=true
Bundle-Version: 0.18
Bundle-Activator: org.apache.hadoop.eclipse.Activator
Bundle-Localization: plugin
Require-Bundle: org.eclipse.ui,
org.eclipse.core.runtime,
org.eclipse.jdt.launching,
org.eclipse.debug.core,
org.eclipse.jdt,
org.eclipse.jdt.core,
org.eclipse.core.resources,
org.eclipse.ui.ide,
org.eclipse.jdt.ui,
org.eclipse.debug.ui,
org.eclipse.jdt.debug.ui,
org.eclipse.core.expressions,
org.eclipse.ui.cheatsheets,
org.eclipse.ui.console,
org.eclipse.ui.navigator,
org.eclipse.core.filesystem,
org.apache.commons.logging
Eclipse-LazyStart: true
Bundle-ClassPath: classes/,lib/hadoop-core.jar,lib/jackson-core-asl-1.8.8.jar ,lib/jackson-mapper-asl-1.8.8.jar, lib/commons-configuration-1.6.jar,lib/commons-lang-2.4.jar, lib/commons-httpclient-3.0.1.jar,lib/commons-cli-1.2.jar
Bundle-Vendor: Apache Hadoop