User
-state:NotifyState
+setState():void
《interface》NotifyState
+notify():data
MailNotify
-data:Data
InfoNotify
GetAreaOfHostelServlet
-hostelDao:HostelDao
+doGet():void+doPost():void
RoomDaoImpl
-baseDao:BaseDao
+getForCEO():ArrayList
AccommodationDaoImpl
-baseDao:BaseDao-accommodationDao:AccommodationDao
+getSumOfMoney():ArrayList
《interface》RoomDao
GenerateData
-baseDao:BaseDao-area:String[]-areaIndex:intrommType:String[]
+generateCard():void+generateHostel():void+generateRoom():void+generateHoom():void+generateAccommodation():void
GetAreaOfCardServlet
-cardDao:CardDao
NoNotify
+notify():null
《interface》BaseDao
+persist(Object):Object+delete(Object):void+update(Object):void
GetSumOfMoneyServlet
-accommodationDao : AccommodationDao
HasNotify
HostelDaoImpl
-area:String[]-baseDao:BaseDao
+areaOfHostel():ArrayList
《interface》CardDao
+areaOfCard():ArrayList
BaseDaoImpl
《interface》HostelDao
GetAverageOfMoneyServlet
《interface》AccommodationDao
CardDaoImpl
