Things to learn in 2018

activit: literature

http://www.kafeitu.me/activiti/2012/05/26/kft-activiti-demo.html

https://blog.csdn.net/u013615903/article/details/78781166

http://lucaslz.com/2016/11/15/java/activiti/activiti-db-5-22/

http://www.kafeitu.me/activiti/2012/08/09/activiti-objects.html

https://ke.qq.com/webcourse/index.html#course_id=189188&term_id=100224008&taid=1005146901504772&vid=p1415v3aear