代码下载地址；

​​https://github.com/winghc/hadoop2x-eclipse-plugin.git​​

$cd src/contrib/eclipse-plugin
 $ant jar -Dversion=2.3.0 -Declipse.home=/opt/eclipse -Dhadoop.home=/usr/share/hadoop
 final jar will be genrated at directory
 $root/build/contrib/eclipse-plugin/hadoop-eclipse-plugin-2.2.0.jar