yum install emacs
vi ~/.emacs.d/init.el
(if ( file-exists-p "~/.emacs.d/.emacs") (load "~/.emacs.d/.emacs"))
vi ~/.emacs.d/.emacs
(add-to-list ‘load-path "~/.emacs.d/jdee-2.4.1/lisp")
(load "jde")
cedet
http://sourceforge.net/projects/cedet/?source=dlp
ecb
https://github.com/alexott/ecb/downloads
git clone https://github.com/emacsmirror/ecb.git
http://ecb.sourceforge.net/ 这里下载的不兼容，
本文出自 “血爪哇” 博客，请务必保留此出处http://sunrain990.blog.51cto.com/3700585/1585994
原文：http://sunrain990.blog.51cto.com/3700585/1585994