http://blog.csdn.net/wengyupeng/archive/2008/07/16/2659691.aspx
http://sites.google.com/a/yustar.info/yustar-info/java-bi-ji-1/java-fan-she-ji-zhi
http://www.360doc.com/showWeb/0/0/480436.aspx
http://orangewhy.iteye.com/blog/56011
