警告：本人测试，以下hadoop-2.7.2版本插件编译完成之后，安装插件之后出现错误Could not initialize class org.apache.hadoop.hdfs.DFSConfigKeys。

所以本人重新安装替换hadoop-2.6.5，编译通过，没有问题，插件可用。

（ps:我不清楚是我当初2.7.2配置出错了，还是本身版本问题。编译步骤没有错误）

需要的资源：

作者环境是

windows10 64bit

1、hadoop2.x-eclipse插件源码

2、ant编译工具，可到官网下载

3、jdk，可到官网下载

4、eclipse-luna-4.4

5、hadoop-2.7.2

hadoop插件源码包下载地址：https://github.com/winghc/hadoop2x-eclipse-plugin

一、首先安装JDK，环境变量配置就不多说了。

二、ant安装配置，同样可检索配置方法。可能遇到的问题：

Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre\lib

解决办法：将jdk1.7.0\lib\目录下的tools.jar拷贝到jre\lib目录中，即可解决。

三、将hadoop2.7.2以及hadoop2x-eclipse-plugin-master分别解压至D盘目录下。D:\hadoop-2.7.2             和        D:\hadoop2x-eclipse-plugin-master 以及eclipse 目录D:\eclipse

四、命令行cmd进入D:\hadoop2x-eclipse-plugin-master目录

五、输入命令：ant jar -Dversion=2.7.2 -Dhadoop.version=2.7.2 -Declipse.home=D:/eclipse -Dhadoop.home=D:/hadoop-2.7.2 回车编译。

编译在ivy-resolve-common:卡住。原因是有些依赖包没有下载下来。一般网速可以是能够通过的

解决办法：在hadoop2x-eclipse-plugin-master\src\contrib\eclipse-plugin\build.xml 文件中找到  <target name="compile" depends="init, ivy-retrieve-common" unless="skip.contrib">  

去掉depends  <target name="compile"  unless="skip.contrib"> 

之后再次执行，会出现一下jar包版本不对应的问题

本人的jar包部分是这样修改的，全部对应hadoop-2.7.2对应的版本号，即hadoop2x-eclipse-plugin-master\ivy\libraries.properties 对应 hadoop-2.7.2\share\hadoop\common\lib下的jar版本号。

    <copy file="${hadoop.home}/share/hadoop/common/lib/protobuf-java-${protobuf.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/log4j-${log4j.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/commons-cli-${commons-cli.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/commons-configuration-${commons-configuration.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/commons-lang-${commons-lang.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/commons-collections-${commons-collections.version}.jar"  todir="${build.dir}/lib" verbose="true"/>  
    <copy file="${hadoop.home}/share/hadoop/common/lib/jackson-core-asl-${jackson.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/jackson-mapper-asl-${jackson.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/slf4j-log4j12-${slf4j-log4j12.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/slf4j-api-${slf4j-api.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/guava-${guava.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/hadoop-auth-${hadoop.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/commons-cli-${commons-cli.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/netty-${netty.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
    <copy file="${hadoop.home}/share/hadoop/common/lib/htrace-core-${htrace.version}.jar"  todir="${build.dir}/lib" verbose="true"/>

<-- 以下添加内容-->
<copy file="${hadoop.home}/share/hadoop/common/lib/commons-httpclient-${commons-httpclient.version}.jar"  todir="${build.dir}/lib" verbose="true"/>

<copy file="${hadoop.home}/share/hadoop/common/lib/commons-io-${commons-io.version}.jar"  todir="${build.dir}/lib" verbose="true"/>
<copy file="${hadoop.home}/share/hadoop/common/lib/servlet-api-${servlet-api.version}.jar"  todir="${build.dir}/lib" verbose="true"/>


    <jar
      jarfile="${build.dir}/hadoop-${name}-${hadoop.version}.jar"
      manifest="${root}/META-INF/MANIFEST.MF">
      <manifest>
   <attribute name="Bundle-ClassPath" 
    value="classes/, 
 lib/hadoop-mapreduce-client-core-${hadoop.version}.jar,
 lib/hadoop-mapreduce-client-common-${hadoop.version}.jar,
 lib/hadoop-mapreduce-client-jobclient-${hadoop.version}.jar,
 lib/hadoop-auth-${hadoop.version}.jar,
 lib/hadoop-common-${hadoop.version}.jar,
 lib/hadoop-hdfs-${hadoop.version}.jar,
 lib/protobuf-java-${protobuf.version}.jar,
 lib/log4j-${log4j.version}.jar,
 lib/commons-cli-${commons-cli.version}.jar,
 lib/commons-configuration-${commons-configuration.version}.jar,
 lib/commons-httpclient-${commons-httpclient.version}.jar,
 lib/commons-lang-${commons-lang.version}.jar,  
 lib/commons-collections-${commons-collections.version}.jar,  
 lib/jackson-core-asl-${jackson.version}.jar,
 lib/jackson-mapper-asl-${jackson.version}.jar,
 lib/slf4j-log4j12-${slf4j-log4j12.version}.jar,
 lib/slf4j-api-${slf4j-api.version}.jar,
 lib/guava-${guava.version}.jar,
 lib/netty-${netty.version}.jar,
 lib/htrace-core-${htrace.version}.jar,

<-- 以下添加内容-->

 lib/commons-io-${commons-io.version}.jar,
 lib/servlet-api-${servlet-api.version}.jar"/>

即编译成功

可能会缺少commons-httpclient-3.1.jar，commons-io-2.4.jar，servlet-api-2.5.jar三个包,导致远程连接失败