jpa @ManyToOne Could not determine type for **错误

jpa ManyToOne 绑定问题

@ManyToOne(fetch = FetchType.EAGER, targetEntity = SoInfo.class)

@JoinColumn(name="order_no", referencedColumnName = "order_no", insertable = false, updatable = false)

public SoInfo getOrder() {
return order;
}