小编给大家分享一下如何编译hadoop2.x的eclipse插件，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
注意：以下操作基于Hadoop-2.4.1，Eclipse Luna，Win7 64位
1、下载插件源码包
https://github.com/winghc/hadoop2x-eclipse-plugin
2、新建eclipse java工程，将压缩包中以下目录的内容复制到project中（只是放到eclipse里边看而已，并不使用eclipse编译）
hadoop2x-eclipse-plugin-master.zip\hadoop2x-eclipse-plugin-master\src\contrib\eclipse-plugin
3、修改build.xml如下
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!--
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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
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distributed under the License is distributed on an "AS IS" BASIS,
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See the License for the specific language governing permissions and
limitations under the License.
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<project default="jar" name="eclipse-plugin">
<property name="jdk.home" value="D:/Program Files/Java/jdk1.7.0_60" />
<property name="hadoop.version" value="2.4.1" />
<property name="hadoop.home" value="D:/Lab/lib/hadoop/hadoop-2.4.1" />
<property name="eclipse.version" value="4.4" />
<property name="eclipse.home" value="D:/Lab/bin/Eclipse/eclipse-jee-luna-SR1a-win32-x86_64" />
<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="${eclipse.home}/plugins/">
<include name="org.eclipse.ui*.jar" />
<include name="org.eclipse.jdt*.jar" />
<include name="org.eclipse.core*.jar" />
<include name="org.eclipse.equinox*.jar" />
<include name="org.eclipse.debug*.jar" />
<include name="org.eclipse.osgi*.jar" />
<include name="org.eclipse.swt*.jar" />
<include name="org.eclipse.jface*.jar" />
<include name="org.eclipse.team.cvs.ssh3*.jar" />
<include name="com.jcraft.jsch*.jar" />
</fileset>
</path>
<path id="project-jars">
<fileset file="${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>5、在build.xml文件上Run AS Ant Build
Buildfile: D:\Lab\ws-hadoop-2\hadoop2x-eclipse-plugin\build.xml
init:
[echo] contrib: eclipse-plugin
compile:
[echo] contrib: eclipse-plugin
[javac] Compiling 45 source files to D:\Lab\ws-hadoop-2\hadoop2x-eclipse-plugin\build\contrib\eclipse-plugin\classes
[javac] 注: 某些输入文件使用或覆盖了已过时的 API。
[javac] 注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。
[javac] 注: 某些输入文件使用了未经检查或不安全的操作。
[javac] 注: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。
jar:
[jar] Building jar: D:\Lab\ws-hadoop-2\hadoop2x-eclipse-plugin\build\contrib\eclipse-plugin\hadoop-2.4.1-eclipse-4.4-plugin.jar
BUILD SUCCESSFUL
Total time: 28 seconds
6、到这里找编译好的jar
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