我可以使用通过postman发送的JSON格式使用没有外键的表向数据库添加值，但是，在插入外键时我收到错误。
这是我的错误：
HTTP Status 500 - javax.persistence.RollbackException: java.lang.IllegalStateException:
During synchronization a new object was found through a relationship that was not marked
cascade PERSIST: com.balay.entity.HaDetails[ hadID=null ].
我正在插入：
{
“acceptedGender”： “既”，
“价格”：123123.00，
“类型”： “公寓”，
“vacantNum”：13，
“HADID”：4个
}
我使用下面的post方法插入
有人可以帮助我
这是我的代码：
@javax.ejb.Stateless
@Path("com.balay.entity.hatypes")
public class HaTypesFacadeREST extends AbstractFacade<HaTypes> {
@PersistenceContext(unitName = "BalayRSPU")
private EntityManager em;
public HaTypesFacadeREST() {
super(HaTypes.class);
}
**@POST
@Override
@Consumes({MediaType.APPLICATION_JSON})
public void create(HaTypes entity) {
em =
Persistence.createEntityManagerFactory("BalayRSPU").createEntityManager();
try{
em.getTransaction().begin();
em.persist(entity);
em.getTransaction().commit();
}finally{
em.close();
}
}**
@PUT
@Path("{id}")
@Consumes({MediaType.APPLICATION_JSON})
public void edit(@PathParam("id") Integer id, HaTypes entity) {
super.edit(entity);
}
@DELETE
@Path("{id}")
public void remove(@PathParam("id") Integer id) {
super.remove(super.find(id));
}
@GET
@Path("{id}")
@Produces({MediaType.APPLICATION_JSON})
public HaTypes find(@PathParam("id") Integer id) {
return super.find(id);
}
@GET
@Override
@Produces({MediaType.APPLICATION_JSON})
public List<HaTypes> findAll() {
return super.findAll();
}
@GET
@Path("{from}/{to}")
@Produces({MediaType.APPLICATION_JSON})
public List<HaTypes> findRange(@PathParam("from") Integer from,
@PathParam("to") Integer to) {
return super.findRange(new int[]{from, to});
}
@GET
@Path("count")
@Produces(MediaType.TEXT_PLAIN)
public String countREST() {
return String.valueOf(super.count());
}
@Override
protected EntityManager getEntityManager() {
em =
Persistence.createEntityManagerFactory("BalayRSPU").createEntityManager();
return em;
}
}
@Entity
@Table(name = "ha_types")
@XmlRootElement
@NamedQueries({
@NamedQuery(name = "HaTypes.findAll", query = "SELECT h FROM HaTypes h")
, @NamedQuery(name = "HaTypes.findByHatID", query = "SELECT h FROM HaTypes h
WHERE h.hatID = :hatID")
, @NamedQuery(name = "HaTypes.findByType", query = "SELECT h FROM HaTypes h
WHERE h.type = :type")
, @NamedQuery(name = "HaTypes.findByAcceptedGender", query = "SELECT h FROM
HaTypes h WHERE h.acceptedGender = :acceptedGender")
, @NamedQuery(name = "HaTypes.findByVacantNum", query = "SELECT h FROM
HaTypes h WHERE h.vacantNum = :vacantNum")
, @NamedQuery(name = "HaTypes.findByPrice", query = "SELECT h FROM HaTypes h
WHERE h.price = :price")})
public class HaTypes implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "hatID")
private Integer hatID;
@Basic(optional = false)
@Column(name = "type")
private String type;
@Basic(optional = false)
@Column(name = "acceptedGender")
private String acceptedGender;
@Basic(optional = false)
@Column(name = "vacantNum")
private int vacantNum;
// @Max(value=?) @Min(value=?)//if you know range of your decimal fields
consider using these annotations to enforce field validation
@Basic(optional = false)
@Column(name = "price")
private BigDecimal price;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "hatID")
private Collection<Reservation> reservationCollection;
@JoinColumn(name = "hadID", referencedColumnName = "hadID")
@ManyToOne(optional = false)
private HaDetails hadID;
public HaTypes() {
}
public HaTypes(Integer hatID) {
this.hatID = hatID;
}
public HaTypes(Integer hatID, String type, String acceptedGender, int
vacantNum, BigDecimal price) {
this.hatID = hatID;
this.type = type;
this.acceptedGender = acceptedGender;
this.vacantNum = vacantNum;
this.price = price;
}
public Integer getHatID() {
return hatID;
}
public void setHatID(Integer hatID) {
this.hatID = hatID;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getAcceptedGender() {
return acceptedGender;
}
public void setAcceptedGender(String acceptedGender) {
this.acceptedGender = acceptedGender;
}
public int getVacantNum() {
return vacantNum;
}
public void setVacantNum(int vacantNum) {
this.vacantNum = vacantNum;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
@XmlTransient
public Collection<Reservation> getReservationCollection() {
return reservationCollection;
}
public void setReservationCollection(Collection<Reservation>
reservationCollection) {
this.reservationCollection = reservationCollection;
}
public HaDetails getHadID() {
return hadID;
}
public void setHadID(HaDetails hadID) {
this.hadID = hadID;
}
@Override
public int hashCode() {
int hash = 0;
hash += (hatID != null ? hatID.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are
not set
if (!(object instanceof HaTypes)) {
return false;
}
HaTypes other = (HaTypes) object;
if ((this.hatID == null && other.hatID != null) || (this.hatID != null
&& !this.hatID.equals(other.hatID))) {
return false;
}
return true;
}
@Override
public String toString() {
return "com.balay.entity.HaTypes[ hatID=" + hatID + " ]";
}
}
@Entity
@Table(name = "ha_details")
@XmlRootElement
@NamedQueries({
@NamedQuery(name = "HaDetails.findAll", query = "SELECT h FROM HaDetails h")
, @NamedQuery(name = "HaDetails.findByHadID", query = "SELECT h FROM
HaDetails h WHERE h.hadID = :hadID")
, @NamedQuery(name = "HaDetails.findByBusinessName", query = "SELECT h FROM
HaDetails h WHERE h.businessName = :businessName")
, @NamedQuery(name = "HaDetails.findByContactNum", query = "SELECT h FROM
HaDetails h WHERE h.contactNum = :contactNum")
, @NamedQuery(name = "HaDetails.findByBusinessAddress", query = "SELECT h
FROM HaDetails h WHERE h.businessAddress = :businessAddress")
, @NamedQuery(name = "HaDetails.findByStatus", query = "SELECT h FROM
HaDetails h WHERE h.status = :status")
, @NamedQuery(name = "HaDetails.findByRegDate", query = "SELECT h FROM
HaDetails h WHERE h.regDate = :regDate")
, @NamedQuery(name = "HaDetails.findByRemarks", query = "SELECT h FROM
HaDetails h WHERE h.remarks = :remarks")
, @NamedQuery(name = "HaDetails.findByLongitude", query = "SELECT h FROM
HaDetails h WHERE h.longitude = :longitude")
, @NamedQuery(name = "HaDetails.findByLatitude", query = "SELECT h FROM
HaDetails h WHERE h.latitude = :latitude")})
public class HaDetails implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Basic(optional = false)
@Column(name = "hadID")
private Integer hadID;
@Basic(optional = false)
@Column(name = "businessName")
private String businessName;
@Basic(optional = false)
@Column(name = "contactNum")
private String contactNum;
@Basic(optional = false)
@Column(name = "businessAddress")
private String businessAddress;
@Basic(optional = false)
@Column(name = "status")
private String status;
@Basic(optional = false)
@Column(name = "regDate")
@Temporal(TemporalType.TIMESTAMP)
private Date regDate;
@Column(name = "remarks")
private String remarks;
@Basic(optional = false)
@Column(name = "longitude")
private String longitude;
@Basic(optional = false)
@Column(name = "latitude")
private String latitude;
@JoinColumn(name = "landlordID", referencedColumnName = "landlordID")
@ManyToOne(optional = false)
private Landlord landlordID;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "hadID")
private Collection<HaImages> haImagesCollection;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "hadID")
private Collection<HaAmenities> haAmenitiesCollection;
@OneToMany(cascade = CascadeType.ALL, mappedBy = "hadID")
private Collection<HaTypes> haTypesCollection;
@OneToMany(mappedBy = "hadID")
private Collection<Tenant> tenantCollection;
public HaDetails() {
}
public HaDetails(Integer hadID) {
this.hadID = hadID;
}
public HaDetails(Integer hadID, String businessName, String contactNum, String businessAddress, String status, Date regDate, String longitude, String latitude) {
this.hadID = hadID;
this.businessName = businessName;
this.contactNum = contactNum;
this.businessAddress = businessAddress;
this.status = status;
this.regDate = regDate;
this.longitude = longitude;
this.latitude = latitude;
}
public Integer getHadID() {
return hadID;
}
public void setHadID(Integer hadID) {
this.hadID = hadID;
}
public String getBusinessName() {
return businessName;
}
public void setBusinessName(String businessName) {
this.businessName = businessName;
}
public String getContactNum() {
return contactNum;
}
public void setContactNum(String contactNum) {
this.contactNum = contactNum;
}
public String getBusinessAddress() {
return businessAddress;
}
public void setBusinessAddress(String businessAddress) {
this.businessAddress = businessAddress;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public Date getRegDate() {
return regDate;
}
public void setRegDate(Date regDate) {
this.regDate = regDate;
}
public String getRemarks() {
return remarks;
}
public void setRemarks(String remarks) {
this.remarks = remarks;
}
public String getLongitude() {
return longitude;
}
public void setLongitude(String longitude) {
this.longitude = longitude;
}
public String getLatitude() {
return latitude;
}
public void setLatitude(String latitude) {
this.latitude = latitude;
}
public Landlord getLandlordID() {
return landlordID;
}
public void setLandlordID(Landlord landlordID) {
this.landlordID = landlordID;
}
@XmlTransient
public Collection<HaImages> getHaImagesCollection() {
return haImagesCollection;
}
public void setHaImagesCollection(Collection<HaImages> haImagesCollection) {
this.haImagesCollection = haImagesCollection;
}
@XmlTransient
public Collection<HaAmenities> getHaAmenitiesCollection() {
return haAmenitiesCollection;
}
public void setHaAmenitiesCollection(Collection<HaAmenities>
haAmenitiesCollection) {
this.haAmenitiesCollection = haAmenitiesCollection;
}
@XmlTransient
public Collection<HaTypes> getHaTypesCollection() {
return haTypesCollection;
}
public void setHaTypesCollection(Collection<HaTypes> haTypesCollection) {
this.haTypesCollection = haTypesCollection;
}
@XmlTransient
public Collection<Tenant> getTenantCollection() {
return tenantCollection;
}
public void setTenantCollection(Collection<Tenant> tenantCollection) {
this.tenantCollection = tenantCollection;
}
@Override
public int hashCode() {
int hash = 0;
hash += (hadID != null ? hadID.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof HaDetails)) {
return false;
}
HaDetails other = (HaDetails) object;
if ((this.hadID == null && other.hadID != null) || (this.hadID != null
&& !this.hadID.equals(other.hadID))) {
return false;
}
return true;
}
@Override
public String toString() {
return "com.balay.entity.HaDetails[ hadID=" + hadID + " ]";
}
}