我遇到错误:org.hibernate.TypeMismatchException:为类BEntity提供了错误类型的ID。预期:类BEntity，得到类AEntitypublicclassBEntityimplementsSerializable{@Id@Column(name="NUM")privateStringnum;@Id@Column(name="INIT")privateStringinit;@Column(name="V_CNT")privateIntegervcnt;//{{{somecolumnomitted}}}//}publicclassAEntityimple