Transaction method call @transactional

  Method A Calling method B

class	Method A Whether to add @Transactional	Method B Whether to add @Transactional	A The method is abnormal	B The method is abnormal
AB Method congener	yes	no	AB Roll back	AB Roll back
	no	yes	A Don't roll back B Don't roll back	A Don't roll back B Don't roll back
AB Methods different classes	yes	no	AB Roll back	AB Roll back
	no	yes	A Don't roll back B Don't roll back	A Don't roll back B Roll back

     

summary ：

        A All transactions take effect

        AB Alien species ,B take effect