Java 使用Hibernate、Primefaces和Spring更新记录

我正在使用集成

spring3

hibernate4

jsf

和

primefaces

。 在我的数据表中，我可以

插入

和

删除

记录，但我的更新代码不起作用，无法更新表和数据库。我不想使用primefaces

单元格编辑器

，我想要一个

命令按钮

执行更新。但当我单击命令按钮时，它会删除数据库和datatable中的单元格（字段），personel_id字段除外。请帮我找到正确的代码。 编辑字段并单击“更新”按钮时： personelDao.java

public class PersonelDao implements IPersonelDao {
    private SessionFactory sessionFactory;
    public void addPersonel(Personel personel) {
        getSessionFactory().getCurrentSession().save(personel);
    }
    public Personel updatePersonel(Personel personel) {

final Session session = getSessionFactory().getCurrentSession();
if(session.contains(personel)){
    session.update(personel);
} else {
    personel = (Personel) session.merge(personel);
}
return personel;
}
public void deletePersonel(Personel personel) {
            getSessionFactory().getCurrentSession().delete(personel);
        }
    }

@Transactional(readOnly=true)
public class PersonelService implements IPersonelService{
    IPersonelDao personeldao;
    @Transactional(readOnly=false)
    public void addPersonel(Personel personel) {
        getPersoneldao().addPersonel(personel);
    }

    @Transactional(readOnly=false)
    public void updatePersonel(Personel personel){
        getPersoneldao().updatePersonel(personel);
    }
    @Transactional(readOnly=false)
    public void deletePersonel(Personel personel) {
        getPersoneldao().deletePersonel(personel);
    }
}

@ManagedBean(name="personelMB")
@RequestScoped
public class PersonelBean implements Serializable{
    private static final long serialVersionUID = 1L;
    @ManagedProperty(value="#{PersonelService}")
    IPersonelService personelservice;
    List<Personel> personelList;
    private int personel_id;
    private String pname;
    private String pfamily;
    private String paddress;
    private String pphone;

    //getter and setter
    public void addPersonel(){
            Personel personel=new Personel();
            personel.setPaddress(getPaddress());
            personel.setPersonel_id(getPersonel_id());
            personel.setPfamily(getPfamily());
            personel.setPname(getPname());
            personel.setPphone(getPphone());
            getPersonelservice().addPersonel(personel);
            reset();
    }

    public void deletePersonel(int personel_id){
            Personel personel=(Personel)personelservice.getPersonelId(personel_id);
            getPersonelservice().deletePersonel(personel);
    }

    public void update(int personel_id){
        Personel personel=(Personel)personelservice.getPersonelId(personel_id);
        personel.setPaddress(getPaddress());
        personel.setPfamily(getPfamily());
        personel.setPname(getPname());
        personel.setPphone(getPphone());
        getPersonelservice().updatePersonel(personel);
    }
}

@Entity
@Table(name="TBLPERSONEL")
public class Personel {
    @Id
    @Column(name="PERSONEL_ID")
    private int personel_id;
    @Column(name="PNAME")
    private String pname;
    @Column(name="PFAMILY")
    private String pfamily;
    @Column(name="PADDRESS")
    private String paddress;
    @Column(name="PPHONE")
    private String pphone;
    @OneToOne
    @PrimaryKeyJoinColumn
    private Manager manager;
    @OneToMany(mappedBy="personel")
    private Set<Stufftransfer> stufftransfers;
    public Personel(){

    }
    //getter and setter
}

personelservice.java

public class PersonelDao implements IPersonelDao {
    private SessionFactory sessionFactory;
    public void addPersonel(Personel personel) {
        getSessionFactory().getCurrentSession().save(personel);
    }
    public Personel updatePersonel(Personel personel) {

final Session session = getSessionFactory().getCurrentSession();
if(session.contains(personel)){
    session.update(personel);
} else {
    personel = (Personel) session.merge(personel);
}
return personel;
}
public void deletePersonel(Personel personel) {
            getSessionFactory().getCurrentSession().delete(personel);
        }
    }

@Transactional(readOnly=true)
public class PersonelService implements IPersonelService{
    IPersonelDao personeldao;
    @Transactional(readOnly=false)
    public void addPersonel(Personel personel) {
        getPersoneldao().addPersonel(personel);
    }

    @Transactional(readOnly=false)
    public void updatePersonel(Personel personel){
        getPersoneldao().updatePersonel(personel);
    }
    @Transactional(readOnly=false)
    public void deletePersonel(Personel personel) {
        getPersoneldao().deletePersonel(personel);
    }
}

@ManagedBean(name="personelMB")
@RequestScoped
public class PersonelBean implements Serializable{
    private static final long serialVersionUID = 1L;
    @ManagedProperty(value="#{PersonelService}")
    IPersonelService personelservice;
    List<Personel> personelList;
    private int personel_id;
    private String pname;
    private String pfamily;
    private String paddress;
    private String pphone;

    //getter and setter
    public void addPersonel(){
            Personel personel=new Personel();
            personel.setPaddress(getPaddress());
            personel.setPersonel_id(getPersonel_id());
            personel.setPfamily(getPfamily());
            personel.setPname(getPname());
            personel.setPphone(getPphone());
            getPersonelservice().addPersonel(personel);
            reset();
    }

    public void deletePersonel(int personel_id){
            Personel personel=(Personel)personelservice.getPersonelId(personel_id);
            getPersonelservice().deletePersonel(personel);
    }

    public void update(int personel_id){
        Personel personel=(Personel)personelservice.getPersonelId(personel_id);
        personel.setPaddress(getPaddress());
        personel.setPfamily(getPfamily());
        personel.setPname(getPname());
        personel.setPphone(getPphone());
        getPersonelservice().updatePersonel(personel);
    }
}

@Entity
@Table(name="TBLPERSONEL")
public class Personel {
    @Id
    @Column(name="PERSONEL_ID")
    private int personel_id;
    @Column(name="PNAME")
    private String pname;
    @Column(name="PFAMILY")
    private String pfamily;
    @Column(name="PADDRESS")
    private String paddress;
    @Column(name="PPHONE")
    private String pphone;
    @OneToOne
    @PrimaryKeyJoinColumn
    private Manager manager;
    @OneToMany(mappedBy="personel")
    private Set<Stufftransfer> stufftransfers;
    public Personel(){

    }
    //getter and setter
}

personelbean.java

public class PersonelDao implements IPersonelDao {
    private SessionFactory sessionFactory;
    public void addPersonel(Personel personel) {
        getSessionFactory().getCurrentSession().save(personel);
    }
    public Personel updatePersonel(Personel personel) {

final Session session = getSessionFactory().getCurrentSession();
if(session.contains(personel)){
    session.update(personel);
} else {
    personel = (Personel) session.merge(personel);
}
return personel;
}
public void deletePersonel(Personel personel) {
            getSessionFactory().getCurrentSession().delete(personel);
        }
    }

@Transactional(readOnly=true)
public class PersonelService implements IPersonelService{
    IPersonelDao personeldao;
    @Transactional(readOnly=false)
    public void addPersonel(Personel personel) {
        getPersoneldao().addPersonel(personel);
    }

    @Transactional(readOnly=false)
    public void updatePersonel(Personel personel){
        getPersoneldao().updatePersonel(personel);
    }
    @Transactional(readOnly=false)
    public void deletePersonel(Personel personel) {
        getPersoneldao().deletePersonel(personel);
    }
}

@ManagedBean(name="personelMB")
@RequestScoped
public class PersonelBean implements Serializable{
    private static final long serialVersionUID = 1L;
    @ManagedProperty(value="#{PersonelService}")
    IPersonelService personelservice;
    List<Personel> personelList;
    private int personel_id;
    private String pname;
    private String pfamily;
    private String paddress;
    private String pphone;

    //getter and setter
    public void addPersonel(){
            Personel personel=new Personel();
            personel.setPaddress(getPaddress());
            personel.setPersonel_id(getPersonel_id());
            personel.setPfamily(getPfamily());
            personel.setPname(getPname());
            personel.setPphone(getPphone());
            getPersonelservice().addPersonel(personel);
            reset();
    }

    public void deletePersonel(int personel_id){
            Personel personel=(Personel)personelservice.getPersonelId(personel_id);
            getPersonelservice().deletePersonel(personel);
    }

    public void update(int personel_id){
        Personel personel=(Personel)personelservice.getPersonelId(personel_id);
        personel.setPaddress(getPaddress());
        personel.setPfamily(getPfamily());
        personel.setPname(getPname());
        personel.setPphone(getPphone());
        getPersonelservice().updatePersonel(personel);
    }
}

@Entity
@Table(name="TBLPERSONEL")
public class Personel {
    @Id
    @Column(name="PERSONEL_ID")
    private int personel_id;
    @Column(name="PNAME")
    private String pname;
    @Column(name="PFAMILY")
    private String pfamily;
    @Column(name="PADDRESS")
    private String paddress;
    @Column(name="PPHONE")
    private String pphone;
    @OneToOne
    @PrimaryKeyJoinColumn
    private Manager manager;
    @OneToMany(mappedBy="personel")
    private Set<Stufftransfer> stufftransfers;
    public Personel(){

    }
    //getter and setter
}

---

仅在方法中定义事务性并分配传播，如果在类上定义“transactional”，则这适用于所有方法

personelservice.java的更改：

//@Transactional(readOnly=true)
public class PersonelService implements IPersonelService{
    IPersonelDao personeldao;
    @Transactional(propagation=Propagation.REQUIRED)
    public void addPersonel(Personel personel) {
        getPersoneldao().addPersonel(personel);
    }

    @Transactional(propagation=Propagation.REQUIRED)
    public void updatePersonel(Personel personel){
        getPersoneldao().updatePersonel(personel);
    }

    @Transactional(propagation=Propagation.REQUIRED)
    public void deletePersonel(Personel personel) {
        getPersoneldao().deletePersonel(personel);
    }
}

雷加特

马努·纳瓦罗

---

PS：请原谅我的英语小流体

为防止更新时出现会话丢失问题，dao中的更改：

public class PersonelDao implements IPersonelDao {
    ...
    public Personel updatePersonel(Personel personel) {
        final Session session = getSessionFactory().getCurrentSession();
        if(session.contains(personel)){
            session.update(personel);
        } else {
            personel = (Personel) session.merge(personel);
        }
        return personel;
    }
    ...
}

因此，如果实体不在会话中，将强制将其与合并链接

您还必须检索合并返回的对象，您可能必须强制并更改内存中的引用

---

问候，

亲爱的马努，谢谢你的回复。我照你说的做了，但我的问题没有解决。亲爱的马努，谢谢你的关注。但它也不起作用。我真的很困惑。当我编辑数据表单元格并单击“更新命令”按钮时，数据将从数据库和数据表行中删除。Manu，我已经编辑了添加跟踪后的日志。请你看一下好吗。特别感谢在调试模式下启动它，希望传递正确的行，如果它给出错误，附加的错误和发生错误的行。我的英语水平不够，你会说西班牙语吗？现在我不能，我可以在8小时内，20:00 UTC+1