openSession和getCurrentSession

http://cache.baiducontent.com/c?m=9d78d513d98203ef03b1c1690c6696315815db3e60c0d1652e89cf0ec42e1d550026bdb47d645646c4c40f7a1cea0c19fdf04134705871eac6969f4aaaeacf7732db67722b4dd81653ce7dc7ab26618a74&p=882a9647d08812a05aa28a2f4b41bb&newp=c23d890a9e904ead08e2977c0b5e98231610db2151d6d0146b82c825d7331b001c3bbfb423231403d1ce7c6304ae4a5deaf63679360021a3dda5c91d9fb4c57479&user=baidu&fm=sc&query=springsessioncontext&qid=ddfebdb60007998d&p1=3

http://developer.51cto.com/art/200907/133238.htm

https://my.oschina.net/u/1042789/blog/202587

http://developer.51cto.com/art/200907/133238.htm

http://blog.csdn.net/fengxuezhiye/article/details/7377232

http://docs.jboss.org/hibernate/orm/5.2/userguide/html_single/Hibernate_User_Guide.html  8.4节

https://coderanch.com/t/590071/databases/org-hibernate-SessionException-Session-closed

https://forum.hibernate.org/viewtopic.php?f=1&t=982741

http://stackoverflow.com/questions/3139378/hibernate-session-closed-problem

http://stackoverflow.com/questions/2378572/hibernate-session-is-closed

http://www.javalobby.org/java/forums/t20533.html

http://blog.csdn.net/xiangsuixinsheng/article/details/6451752

http://blog.csdn.net/afandaafandaafanda/article/details/46009353

http://blog.csdn.net/liyunyun6/article/details/8946501