Java hibernate-无法执行语句；SQL[n/a]-保存嵌套对象

我正在尝试使用hibernate保存嵌套对象，我收到

无法执行语句；SQL[n/a]异常

代码

@Entity
@Table(name = "listing")
@Inheritance(strategy = InheritanceType.JOINED)
public class Listing implements Serializable {

  @Id
  @Column(name = "listing_id")
  private String listingId;

  @Column(name = "property_type")
  private PropertyType propertyType;

  @Column(name = "category")
  private Category category;

  @Column(name = "price_currency")
  private String priceCurrency;

  @Column(name = "price_value")
  private Double priceValue;

  @Column(name = "map_point")
  private MapPoint mapPoint;

  @Column(name = "commission_fee_info")
  private CommissionFeeInfo commissionFeeInfo;
}


public class MapPoint implements Serializable {

  private final float latitude;
  private final float longitude;
}

public class CommissionFeeInfo implements Serializable {

  private String agentFeeInfo;
  private CommissionFeeType commissionFeeType;
  private Double value;
  private Double commissionFee;
}

public enum CommissionFeeType implements Serializable { }

使用

RazorSQL

我看到

hibernate

将

MapPoint

和

CommissionFee

定义为

VARBINARY

我不明白的是，hibernate在commissionFeeInfo不存在时设法保存了它。保存

MapPoint

有人知道我做错了什么吗

更新

@Entity
@Table(name = "listing")
@Inheritance(strategy = InheritanceType.JOINED)
public class Listing implements Serializable {

  @Id
  @Column(name = "listing_id")
  private String listingId;

  @Column(name = "property_type")
  private PropertyType propertyType;

  @Column(name = "category")
  private Category category;

  @Column(name = "price_currency")
  private String priceCurrency;

  @Column(name = "price_value")
  private Double priceValue;

  @Column(name = "map_point")
  private MapPoint mapPoint;

  @Column(name = "commission_fee_info")
  private CommissionFeeInfo commissionFeeInfo;
}


public class MapPoint implements Serializable {

  private final float latitude;
  private final float longitude;
}

public class CommissionFeeInfo implements Serializable {

  private String agentFeeInfo;
  private CommissionFeeType commissionFeeType;
  private Double value;
  private Double commissionFee;
}

public enum CommissionFeeType implements Serializable { }

我发现如果

CommissionFeeInfo

的所有属性（除了

agentFeeInfo

之外）都是

null

，那么对象将被保存，不会出现问题。如果其他属性之一为

！=null

，则会出现错误

更新2

---

我将

CommissionFeeInfo

的所有属性的类型更改为

String

，对象将毫无问题地保存，但我不能让属性为

String

我通过添加设置解决了问题

@Column(name = "commission_fee_info", columnDefinition = "LONGVARBINARY")

作为类

列表

中字段

commissionfeeinfo

的注释

@Column(columnDefinition="text")

---

解决了我的问题。

由于另一个原因，该解决方案可能会有所帮助。另一个原因可能是列长度。检查列的长度。我也有同样的错误，原因是我的数据超过了列的大小

setSignInProvider("String length > 15 ") 

以前

    @Column(name = "sing_in_provider", length = 15)

然后

   @Column(name = "sing_in_provider", length = 100)

---

你能解释一下你的错误吗？是否存在嵌套异常？有SQL错误代码吗？@RicardoVila是的，有一个嵌套的异常

java.SQL.SQLDataException:data exception:string data，右截断；表：列表列：佣金费用信息和org.springframework.dao.DataIntegrityViolationException:无法执行语句；SQL[n/a]；嵌套异常为org.hibernate.exception.DataException:无法执行语句

和

sql=n/a