JMX 资料收集
JavaSky的专栏
http://blog.csdn.net/qiao000_000/article/category/763467
lengyuhong的专栏
http://blog.csdn.net/lengyuhong/article/details/6200355
JVisualVM安装插件：
http://jiajun.iteye.com/blog/1180230
插件下载：
http://visualvm.java.net/plugins.html
com.sun.management包用来做监控
http://blog.sina.com.cn/s/blog_605f5b4f01010if2.html
