實體類:

public class Battery {
    private Integer id;//編號
    private Set<BatteryVoltage> voltageList =new HashSet<>(); 

public class BatteryVoltage {
    private Integer id;//ID
    private Integer number;//編號
    private Double voltage;  //電壓
    private Integer equipmentID;//

xml:

        <
 
set name="voltageList" inverse="true" cascade="delete">
            <key column="equipmentID"/>
            <one-to-many class="xdemo.entity.BatteryVoltage"/>
         </set>

hibernate 一對多單向xml配置方式