hibernate联合主键(composite-id)

细谈Hibernate（十一）hibernate复合主键映射： http://blog.csdn.net/csh624366188/article/details/7609078  

composite-id 学习 :                   http://www.blogjava.net/gm_jing/articles/65462.html

Hibernate联合主键映射以及组件映射： http://www.cnblogs.com/sp2012/archive/2011/06/09/2465708.html

第二十六章 hibernate联合主键(composite-id)：  http://blog.csdn.net/huangjing6604/article/details/5983223