摘要： http://blog.csdn.net/leeshaoqun/archive/2007/08/14/1742953.aspxhttp://www.diybl.com/course/3_program/java/javaxl/2008109/149406_5.htmlhttp://samwong.javaeye.com/blog/342054http://samwong.javaeye.com/b... 阅读全文