JPA坚持使用外键

Question

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。有人可以发一个代码来解决这个问题我完全不知道如何解决它

这是我的错误：

private void Acc_Button_createActionPerformed(java.awt.event.ActionEvent evt) {                                                  

    int p = JOptionPane.showConfirmDialog(rootPane, "Do you want add", "Add", JOptionPane.YES_NO_OPTION);
    if (p == 0) {
        try {
            String sql = "insert into ACCOUNT_INFO  (ACC,NAMEF,DOB,PIN,ACCOUNT_TPAYE,NATIONALTY,CASTE,MICR_NO,GENDER,MOB_NO,ADDRESS,SEC_Q,SEC_A,BLANCE)values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
            jrowSet.setCommand(sql);
            jrowSet.setString(1, Acc_TextField_acc.getText());
            jrowSet.setString(2, Acc_TextField_amunt.getText());
            jrowSet.setString(3, ((JTextField) Acc_DateChooser_birh.getDateEditor().getUiComponent()).getText());
            jrowSet.setString(4, Acc_TextField_pin.getText());
            jrowSet.setString(5, (String) Acc_ComboBox_acc_type.getSelectedItem());
            jrowSet.setString(6, (String) Acc_ComboBox_naton.getSelectedItem());
            jrowSet.setString(7, Acc_TextField_name.getText());
            jrowSet.setString(8, Acc_TextField_misr.getText());
            // for radio btn
            RadioButton_male.setActionCommand("Male");
            RadioButton_female.setActionCommand("Femal");
            // to insert radin in database
            jrowSet.setString(9, buttonGroup2.getSelection().getActionCommand());
            jrowSet.setString(10, Acc_TextField_caste.getText());
            jrowSet.setString(11, Acc_TextField_adrres.getText());
            jrowSet.setString(12, (String) Acc_ComboBox_sq_q.getSelectedItem());
            jrowSet.setString(13, Acc_TextField_mob_no.getText());
            jrowSet.setString(14, Acc_TextField_seq_a.getText());
            jrowSet.execute();
          // Bal();
            JOptionPane.showMessageDialog(rootPane, "added", "add acount", JOptionPane.INFORMATION_MESSAGE);

        } catch (HeadlessException | SQLException e) {
        }
    }
}

// Acc_Button_createActionPerformed(Account.java:414) >> this is the ine 414 
 jrowSet.setString(9, buttonGroup2.getSelection().getActionCommand());

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：

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 ].

@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 + " ]";
}

}