http://www.blogjava.net/liuwentao253
http://tech.it168.com/j/2007-09-29/200709291132796_1.shtml
http://blog.csdn.net/pizzame/archive/2007/12/20/1956326.aspx
http://blog.csdn.net/whqcfp/archive/2008/09/14/2927512.aspx
http://www.blogjava.net/tidelgl/archive/2008/08/19/223082.html
http://www.jackytsu.com/extcn/
http://www.blogjava.net/vip01/archive/2007/01/08/92430.html