设置隔离层次（）可以解决phantom reads。

A.TRANSACTION_NONE
B.TRANSACTION_READ_UNCOMMITED
C.TRANSACTION_SERIALIZABLE
D.TRANSACTION_REPEATABLE_READ
E.TRANSACTION_READ_COMMITED

A.TRANSACTION_NONE
B.TRANSACTION_READ_UNCOMMITED
C.TRANSACTION_SERIALIZABLE
D.TRANSACTION_REPEATABLE_READ
E.TRANSACTION_READ_COMMITED

A.ResultSet
B.int
C.boolean
D.受影响的记录数量
E.有无ResultSet返回