1.下载插件：hadoop2x-eclipse-plugin
2.因为工程目录及插件目录都不一样，因此，先说明一下本地的目录结构：
eclipse目录: /home/hadoop/software/eclipse
hadoop2x-eclipse-plugin目录：/home/hadoop/software/hadoop2x-eclipse-plugin/src/contrib/eclipse-plugin/
3.利用Ant进行编译，前提是java环境、ant环境、eclipse及hadoop2.2都已经配置安装完成：
[hadoop@localhost ~]$ cd software/hadoop2x-eclipse-plugin/src/contrib/eclipse-plugin/
[hadoop@localhost eclipse-plugin]$ ant jar -Dversion=2.2.0 -Declipse.home=/home/hadoop/software/eclipse -Dhadoop.home=/home/hadoop/hadoop
ant编译时的参数说明：
-Declipse.home：指eclipse的根路径
-Dhadoop.home：指hadoop2.2.0的根路径
4.编译
[jar] Building jar: /home/hadoop/software/hadoop2x-eclipse-plugin/build/contrib/eclipse-plugin/hadoop-eclipse-plugin-2.2.0.jar
BUILD SUCCESSFULTotal time: 5 minutes 43 seconds最后，可以在相应的目录下找到已经编译成功的插件jar包