事务的隔离级别

http://uule.iteye.com/blog/1445678

悲观锁乐观锁

http://blog.csdn.net/hongchangfirst/article/details/26004335

http://www.cnblogs.com/chenlulouis/archive/2010/07/07/1772631.html

 

spring事物隔离级别

http://blog.csdn.net/it_man/article/details/5074371   总结的很全面

http://www.cnblogs.com/yangy608/archive/2011/06/29/2093478.html