使用条件连接多个表

Posted 2023-02-26

【中文标题】使用条件连接多个表

【英文标题】：Join multiple table using criteria

【发布时间】：2022-01-08 21:04:51

【问题描述】：

我有三个实体（我不显示构造函数和变量以免拉长整体）。第一个：

@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "id_service_booking_request", unique = true, nullable = false)
public Integer getIdServiceBookingRequest() 
    return idServiceBookingRequest;


public void setIdServiceBookingRequest(Integer idServiceBookingRequest) 
    this.idServiceBookingRequest = idServiceBookingRequest;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_supplier_service")
public SupplierServiceTO getSupplierService() 
    return supplierService;


public void setSupplierService(SupplierServiceTO supplierService) 
    this.supplierService = supplierService;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "date_insert", length = 19)
public Date getDateInsert() 
    return dateInsert;


public void setDateInsert(Date dateInsert) 
    this.dateInsert = dateInsert;


@Column(name = "client_notes")
public String getClientNotes() 
    return clientNotes;


public void setClientNotes(String clientNotes) 
    this.clientNotes = clientNotes;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_senior")
public AnagraphicTO getSeniorTO() 
    return seniorTO;


public void setSeniorTO(AnagraphicTO seniorTO) 
    this.seniorTO = seniorTO;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_supplier_user")
public AnagraphicTO getSupplierUserTO() 
    return supplierUserTO;


public void setSupplierUserTO(AnagraphicTO supplierUserTO) 
    this.supplierUserTO = supplierUserTO;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_type_service_booking_status")
public TypeServiceBookingStatusTO getTypeServiceBookingStatusTO() 
    return typeServiceBookingStatusTO;


public void setTypeServiceBookingStatusTO(TypeServiceBookingStatusTO typeServiceBookingStatusTO) 
    this.typeServiceBookingStatusTO = typeServiceBookingStatusTO;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "final_time_slot")
public ServiceBookingTimeslotRequestTO getFinalServiceBookingTimeslotTO() 
    return finalServiceBookingTimeslotTO;


public void setFinalServiceBookingTimeslotTO(ServiceBookingTimeslotRequestTO finalServiceBookingTimeslotTO) 
    this.finalServiceBookingTimeslotTO = finalServiceBookingTimeslotTO;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "appointment_date", length = 19)
public Date getAppointmentDate() 
    return appointmentDate;


public void setAppointmentDate(Date appointmentDate) 
    this.appointmentDate = appointmentDate;


@Column(name = "supplier_notes")
public String getSupplierNotes() 
    return supplierNotes;


public void setSupplierNotes(String supplierNotes) 
    this.supplierNotes = supplierNotes;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_last_supplier_edit")
public AnagraphicTO getLastSupplierEdit() 
    return lastSupplierEdit;


public void setLastSupplierEdit(AnagraphicTO lastSupplierEdit) 
    this.lastSupplierEdit = lastSupplierEdit;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "last_update", length = 19)
public Date getLastUpdate() 
    return lastUpdate;


public void setLastUpdate(Date lastUpdate) 
    this.lastUpdate = lastUpdate;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "serviceBookingRequestTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<ServiceBookingTimeslotRequestTO> getServiceBookingTimeslotRequestTOs() 
    return serviceBookingTimeslotRequestTOs;


public void setServiceBookingTimeslotRequestTOs(
        Set<ServiceBookingTimeslotRequestTO> serviceBookingTimeslotRequestTOs) 
    this.serviceBookingTimeslotRequestTOs = serviceBookingTimeslotRequestTOs;

第二个：

@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "id_supplier_service", unique = true, nullable = false)
public Integer getIdSupplierService() 
    return idSupplierService;


public void setIdSupplierService(Integer idSupplierService) 
    this.idSupplierService = idSupplierService;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_structure")
public StructureTO getStructureTO() 
    return structureTO;


public void setStructureTO(StructureTO structureTO) 
    this.structureTO = structureTO;


@Column(name = "price")
public String getPrice() 
    return price;


public void setPrice(String price) 
    this.price = price;


@Column(name = "description")
public String getDescription() 
    return description;


public void setDescription(String description) 
    this.description = description;


@Column(name = "radius")
public String getRadius() 
    return radius;


public void setRadius(String radius) 
    this.radius = radius;


@Column(name = "brief_description")
public String getBriefDescription() 
    return briefDescription;


public void setBriefDescription(String briefDescription) 
    this.briefDescription = briefDescription;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "start_date", length = 19)
public Date getDateStart() 
    return dateStart;


public void setDateStart(Date dateStart) 
    this.dateStart = dateStart;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "end_date", length = 19)
public Date getEndDate() 
    return endDate;


public void setEndDate(Date endDate) 
    this.endDate = endDate;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_type_service")
public TypeServiceTO getTypeServiceTO() 
    return typeServiceTO;


public void setTypeServiceTO(TypeServiceTO typeServiceTO) 
    this.typeServiceTO = typeServiceTO;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_last_editor")
public AnagraphicTO getLastEditor() 
    return lastEditor;


public void setLastEditor(AnagraphicTO lastEditor) 
    this.lastEditor = lastEditor;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "supplierServiceTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<ServiceSupplierTimeslotTO> getServiceSupplierTimeslotTOs() 
    return serviceSupplierTimeslotTOs;


public void setServiceSupplierTimeslotTOs(Set<ServiceSupplierTimeslotTO> serviceSupplierTimeslotTOs) 
    this.serviceSupplierTimeslotTOs = serviceSupplierTimeslotTOs;

最后一个：

@Id
@GeneratedValue(strategy = IDENTITY)
@Column(name = "id_structure", unique = true, nullable = false)
public Integer getIdStructure() 
    return this.idStructure;


public void setIdStructure(Integer idStructure) 
    this.idStructure = idStructure;


@Column(name = "id_structure_open_am", nullable = false, length = 50)
public String getIdStructureOpenAm() 
    return this.idStructureOpenAm;


public void setIdStructureOpenAm(String idStructureOpenAm) 
    this.idStructureOpenAm = idStructureOpenAm;


@Column(name = "description", nullable = false, length = 100)
public String getDescription() 
    return this.description;


public void setDescription(String description) 
    this.description = description;


@Column(name = "note", nullable = false)
public String getNote() 
    return this.note;


public void setNote(String note) 
    this.note = note;


@Column(name = "structure_phone_number", nullable = false)
public String getStructurePhoneNumber() 
    return structurePhoneNumber;


public void setStructurePhoneNumber(String structurePhoneNumber) 
    this.structurePhoneNumber = structurePhoneNumber;


@Column(name = "structure_email", nullable = false)
public String getStructureEmail() 
    return structureEmail;


public void setStructureEmail(String structureEmail) 
    this.structureEmail = structureEmail;

@Column(name = "tech_support_phone_number", nullable = false)
public String getTechSupportPhoneNumber() 
    return techSupportPhoneNumber;


public void setTechSupportPhoneNumber(String techSupportPhoneNumber) 
    this.techSupportPhoneNumber = techSupportPhoneNumber;

@Column(name = "faq_link", nullable = false)
public String getFaqLink() 
    return faqLink;


public void setFaqLink(String faqLink) 
    this.faqLink = faqLink;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<KitTO> getKitTOs() 
    return this.kitTOs;


public void setKitTOs(Set<KitTO> kitTOs) 
    this.kitTOs = kitTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "id.structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<AnagraphicStructureTO> getAnagraphicStructureTOs() 
    return this.anagraphicStructureTOs;


public void setAnagraphicStructureTOs(Set<AnagraphicStructureTO> anagraphicStructureTOs) 
    this.anagraphicStructureTOs = anagraphicStructureTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<InterventionTO> getInterventionTOs() 
    return this.interventionTOs;


public void setInterventionTOs(Set<InterventionTO> interventionTOs) 
    this.interventionTOs = interventionTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<AssetTO> getAssetTOs() 
    return this.assetTOs;


public void setAssetTOs(Set<AssetTO> assetTOs) 
    this.assetTOs = assetTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<AssetProviderTO> getAssetProviderTOs() 
    return this.assetProviderTOs;


public void setAssetProviderTOs(Set<AssetProviderTO> assetProviderTOs) 
    this.assetProviderTOs = assetProviderTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<AssetModelTO> getAssetModelTOs() 
    return this.assetModelTOs;


public void setAssetModelTOs(Set<AssetModelTO> assetModelTOs) 
    this.assetModelTOs = assetModelTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<AnagraphicTO> getAnagraphicTOs() 
    return this.anagraphicTOs;


public void setAnagraphicTOs(Set<AnagraphicTO> anagraphicTOs) 
    this.anagraphicTOs = anagraphicTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<AidTO> getAidTOs() 
    return this.aidTOs;


public void setAidTOs(Set<AidTO> aidTOs) 
    this.aidTOs = aidTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<TimeSlotsTO> getTimeSlotsTOs() 
    return this.timeSlotsTOs;


public void setTimeSlotsTOs(Set<TimeSlotsTO> timeSlotsTOs) 
    this.timeSlotsTOs = timeSlotsTOs;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<ProfileTO> getProfileTOs() 
    return this.profileTOs;


public void setProfileTOs(Set<ProfileTO> profileTOs) 
    this.profileTOs = profileTOs;


@Column(name = "company_name", length = 100)
public String getCompanyName() 
    return companyName;


public void setCompanyName(String companyName) 
    this.companyName = companyName;


@Column(name = "partita_iva", length = 100)
public String getPartitaIva() 
    return partitaIva;


public void setPartitaIva(String partitaIva) 
    this.partitaIva = partitaIva;


@Column(name = "rea", length = 100)
public String getRea() 
    return rea;


public void setRea(String rea) 
    this.rea = rea;


@Column(name = "pec", length = 100)
public String getPec() 
    return pec;


public void setPec(String pec) 
    this.pec = pec;


@Column(name = "address", length = 100)
public String getAddress() 
    return address;


public void setAddress(String address) 
    this.address = address;


@Column(name = "business_name", length = 100)
public String getBusinessName() 
    return businessName;


public void setBusinessName(String businessName) 
    this.businessName = businessName;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_type_structure", nullable = false)
public TypeStructureTO getTypeStructureTO() 
    return typeStructureTO;


public void setTypeStructureTO(TypeStructureTO typeStructureTO) 
    this.typeStructureTO = typeStructureTO;


@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "id_type_supplier_category", nullable = false)
public TypeSupplierCategoryTO getTypeSupplierCategoryTO() 
    return typeSupplierCategoryTO;


public void setTypeSupplierCategoryTO(TypeSupplierCategoryTO typeSupplierCategoryTO) 
    this.typeSupplierCategoryTO = typeSupplierCategoryTO;


@Column(name = "active")
public Boolean getActive() 
    return active;


public void setActive(Boolean active) 
    this.active = active;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "registration_date", nullable = false, length = 19)
public Date getRegistrationDate() 
    return registrationDate;


public void setRegistrationDate(Date registrationDate) 
    this.registrationDate = registrationDate;


@Temporal(TemporalType.TIMESTAMP)
@Column(name = "end_date", nullable = false, length = 19)
public Date getEndDate() 
    return endDate;


public void setEndDate(Date endDate) 
    this.endDate = endDate;


@OneToMany(fetch = FetchType.LAZY, mappedBy = "id.structureTO", cascade = 
        javax.persistence.CascadeType.ALL , orphanRemoval = true)
public Set<StructureSupplierTO> getStructureSupplierTOs() 
    return structureSupplierTOs;


public void setStructureSupplierTOs(Set<StructureSupplierTO> structureSupplierTOs) 
    this.structureSupplierTOs = structureSupplierTOs;

我应该做一个查询，允许我选择最后一个实体的表的 id_structure，所以我这样继续：

public List<ServiceBookingRequestTO> findByStructure(Integer structureId) throws Throwable 
    try 
        Criteria criteria = this.getSession().createCriteria(ServiceBookingRequestTO.class);
        Criterion findStructure = Restrictions.eq("supplierService.structureTO.idStructure", structureId);
        criteria.add(findStructure);
        return criteria.list();
     catch (Throwable e) 
        // TODO: handle exception
        e.printStackTrace();
        throw e;
    

但是这个异常被捕获了：

org.hibernate.QueryException: could not resolve property: supplierService.structureTO.idStructure of: it.a.to.mad.m.ServiceBookingRequestTO

我做错了什么？

【参考方案1】：

我相信您只需要在限制中提供属性名称。 这行得通吗？

Restrictions.eq("idStructure", structureId)

【讨论】：

不，我试过了，但它一直给我同样的异常，我猜为什么 idStructure 是我试图查看的实体的一部分

错误描述一模一样一样吗？这很奇怪，因为“supplierService.serviceTO”来自我们编辑的字符串。在我们删除它后，我看不到它如何出现在异常消息中。