Hibernate中的inverse和cascade
主控方：维护关联表的一方，一般为many方，这样效率会比较高操作原则：many方inverse为false，one方为truemany方cascade看业务情
个人定义：
主控方：维护关联表的一方，一般为many方，这样效率会比较高
操作原则：many方inverse为false，one方为true
many方cascade看业务情况，one方为true
一、？
inverse 作用与持有集合对象的一方，决定是否为主控方，true---不是，只在one-to-many和many-to-many中配置
cascade 作用与持有对象，即设定cascade一方的操作会影响另一方操作
二、inverse注意
1.默认为false
2在多对多关系中不能都为false，或都为true，因为都为false，则会两次插入，都为true，不是有操作
三、具体操作
one-to-one:cascade=true,invers=true
one-to-many: inverse=true ,cascade=true
many-to-one; inverse=false，cascade看情况
many-to-many:主控方many:inverse=false,cascade看情况
被控方many:inverse=true,cascade看情况
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