Activity

http://www.mossle.com/index.do

http://www.open-open.com/lib/view/open1438785141958.html

http://www.activiti.org/download.html

http://www.ibm.com/developerworks/cn/java/j-lo-activiti1/

http://wenku.baidu.com/link?url=dl741_rdSl3xoZMWxV1_Iostbwv508S4yi5jC2XKYemKsDPyJ2fhZUcrfP8J_Qz7h-zUk7jCHFYCu7t_sjVkQOLm_KegPtRNh_cRpeZzndi

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