Question

我正在尝试解决此派生身份的问题。在我的Spring Boot服务中，当我尝试保留LoanInfo（）时，出现此错误：

java.lang.IllegalArgumentException: This class [class org.onewallet.entity.Loan] does not define an IdClass

ID的生成在AbstractPersistableCustom.java中进行处理：

@MappedSuperclass

public class AbstractPersistableCustom <PK extends Serializable> implements Persistable<Long> {

     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;

     @Override
     public Long getId() {
             return id;
     }

     /**
      * Sets the id of the entity.
      * 
      * @param id the id to set
      */
     protected void setId(final Long id) {

             this.id = id;
     }

     /*
      * (non-Javadoc)
      * 
      * @see org.springframework.data.domain.Persistable#isNew()
      */
     @Override
     public boolean isNew() {

             return null == this.id;
     }

     //We have removed toString(), hashCode() and equals() methods. By adding them end up issues with OpenJPA
}

在我的实体Loan.java中，我有：

@Entity
@Table(name="m_loan")

public class Loan extends AbstractPersistableCustom<Long> {


    /** Disable optimistic locking till batch jobs failures can be fixed **/
        @Version
        int version;
....
....
}

阅读一些资料后，我尝试使用@IdClass注释实体：

@Entity
@IdClass(AbstractPersistableCustom.class)
@Table(name="m_loan")

public class Loan extends AbstractPersistableCustom<Long> {



    /** Disable optimistic locking till batch jobs failures can be fixed **/
        @Version
        int version;
...
...
}

此更改后，当我尝试保留数据时，我得到另一个异常：

org.springframework.orm.jpa.JpaSystemException: Could not set field value [POST_INSERT_INDICATOR] value by reflection

关于如何解决这个问题的任何意见吗？

java.lang.IllegalArgumentException：此类<>没有定义IdClass

0 个答案: