整合:
http://txswjhd.blog.163.com/blog/static/42232682200781825429353/
错误:
http://zhoujianghai.javaeye.com/blog/623608
http://magicbear.javaeye.com/blog/234125
http://alvinqq.javaeye.com/blog/636049
http://samueli.javaeye.com/blog/243559
http://jiangyingshan.javaeye.com/blog/158383
http://hi.baidu.com/zcq100/blog/item/779862d91368f5e139012fb2.html
http://chengyao.javaeye.com/category/14558?show_full=true
http://topmanopensource.javaeye.com/blog/424617