Spring数据JPA存储库：查找查询抛出OptimisticLocking异常

Question

我可以问一下选择锁定吗？ 可以读取spring数据JPA中的操作，比如repository.findOne（），findById抛出OptimisticLocking。 ？

我使用spring-data jpa + hibernate + mysql

Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) : [com.sample.persistence.domain.Driver#540444464]; nested exception is javax.persistence.OptimisticLockException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect) : [com.sample.persistence.domain.Driver#540444464]"

感谢

[代码] 持久性

@Entity
@Table(name = "driver")
public class Driver extends Base {

    private static final long serialVersionUID = 1L;

    @Column(name = "name", length = 50, nullable = false)
    private String name;

    @Column(name = "phone", length = 20, nullable = false)
    private String phone;

    @Column(name = "photograph")
    private String photograph;

}


@MappedSuperclass
public abstract class Base implements Serializable {

    private static final long serialVersionUID = -7369920601847524273L;

    public Base() {
    }

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    protected Integer id;

    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "date_last_modified")
    protected Date modificationDate;

    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "date_created")
    protected Date creationDate;

    @Version
    @Column(name = "version")
    protected Integer version;
}

存储库

@Repository
public interface DriverRepository extends JpaRepository<Driver, Integer>, DriverRepositoryCustom, JpaSpecificationExecutor<Driver> {
}

DAO代码

public Driver findById(Integer key) {

        Driver driver = driverRepository.findOne(key);
        if (driver == null) {
            return null;
        }