java SPI，

java SPI，

Java的SPI
[url]http://singleant.iteye.com/blog/1497259[/url]
[url]http://developer.51cto.com/art/201111/305150.htm[/url]
[url]http://blog.csdn.net/fenglibing/article/details/7083071[/url]
[url]http://www.cnblogs.com/happyframework/p/3349087.html[/url]