获取JAVA CPU使用率 规格严格

http://lionbule.iteye.com/blog/717942

http://blog.csdn.net/gameover1999/article/details/1616539

http://topic.csdn.net/u/20100817/18/0cc50d85-be84-4ada-9e6d-5b5b6de837ef.html

http://www.cnblogs.com/sonic4x/archive/2011/06/17/How_to_deal_with_dead-loop_or_high-cpu_usage_bug.html

http://agapple.iteye.com/blog/1156719

http://blog.csdn.net/axman/article/details/7104819

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