我创建了一个像这样的计划类
计划:
@Entity(name = "Plan")
@Data
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper = false)
public class PlanEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int planId;
private String planName;
private BigDecimal pBenefitMax;
private LocalDate pStartDate;
private LocalDate pEndDate;
private int pCompanyId;
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "dPlanId")
private List<DentalAgreementEntity> dentalAgreementEntities;
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "pPlanId")
private List<PatientEntity> patientEntities;
}
患者实体如下所示:
@Entity(name = "Patient")
@Data
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper = false)
public class PatientEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int patientId;
private String firstName;
private String lastName;
private String patientEmail;
private String patientPhone;
private LocalDateTime dateOfBirth;
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "tPatientId")
private List<TransactionEntity> transactionEntities;
@OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@JoinColumn(name = "aPatientId")
private List<AppointmentEntity> appointmentEntities;
@ManyToOne
@JoinColumn(name = "pPlanId")
private PlanEntity planEntity;
}
协议(protocol)实体如下所示:
@Entity(name = "DentalAgreement")
@Data
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper = false)
public class DentalAgreementEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer agreementId;
private BigDecimal percentage;
private Integer dPlanId;
private String dAdaCode;
}
PlanRepository 看起来像这样:
@Repository
public interface PlanRepository extends CrudRepository<PlanEntity, Integer> {
}
而且我能够轻松成功地保存计划实体。但是,如果我尝试删除 PlanEntity,如下所示:
public void deleteCompanyPlan(PlanEntity planEntity){
planRepository.delete(planEntity);
}
虽然没有抛出错误,但当我检查数据库时,该行并未被删除。我尝试过使类可序列化,仅使用“deleteById()”方法和许多其他方法,但我无法通过 Spring 实现删除计划。我做错了什么?
最佳答案
通过从父实体中删除 FetchType.LAZY 和 CascadeType.All 已修复问题。
@Entity(name = "Company")
@Data
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(callSuper=false)
public class CompanyEntity {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int companyId;
private String companyName;
private String companyNumber;
private String companyEmail;
private String companyAddress;
private String companyCity;
private String companyState;
private String companyZip;
@OneToMany
@JoinColumn(name = "pCompanyId")
private List<PatientEntity> patientEntities;
@OneToMany
@JoinColumn(name = "pCompanyId")
private List<PlanEntity> planEntities;
@Override
public String toString() {
return "CompanyEntity{" +
"companyId=" + companyId +
", companyName='" + companyName + '\'' +
", companyNumber='" + companyNumber + '\'' +
", companyEmail='" + companyEmail + '\'' +
", companyAddress='" + companyAddress + '\'' +
", companyCity='" + companyCity + '\'' +
", companyState='" + companyState + '\'' +
", companyZip='" + companyZip + '\'' +
'}';
}
}
关于java - CrudRepository 不删除行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/56150031/