如何使用hibernate删除/编辑JTable和MySQL中的行？
我有一个JTable在MYSQL数据库中显示表的内容。我也可以在我的JTable和我的数据库中添加一条记录。编辑和删除操作只能在我的JTable中进行（更改不会显示在我的数据库中）。我想在我的按钮事件中添加hibernate代码，以便可以将更改显示到MySQL数据库。
任何帮助将不胜感激。
以下是有关课程：
package com.hibernate.stock;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
import java.awt.GridLayout;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTable;
import javax.swing.JButton;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.List;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class Gestion extends JFrame {
private JPanel contentPane;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTable table;
List biens;
int i;
PersistantBien bien = new PersistantBien();
final String columnNames[] = {"ID", "Nom", "Catégorie", "Quantité"};
final DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Gestion frame = new Gestion();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public Gestion() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblId = new JLabel("ID:");
lblId.setBounds(12, 12, 70, 15);
contentPane.add(lblId);
JLabel lblNom = new JLabel("nom:");
lblNom.setBounds(12, 39, 70, 15);
contentPane.add(lblNom);
JLabel lblCatgorie = new JLabel("catégorie:");
lblCatgorie.setBounds(12, 69, 70, 15);
contentPane.add(lblCatgorie);
JLabel lblQuantit = new JLabel("quantité:");
lblQuantit.setBounds(12, 108, 70, 15);
contentPane.add(lblQuantit);
textField = new JTextField();
textField.setBounds(106, 10, 114, 19);
contentPane.add(textField);
textField.setColumns(10);
textField_1 = new JTextField();
textField_1.setBounds(106, 37, 114, 19);
contentPane.add(textField_1);
textField_1.setColumns(10);
textField_2 = new JTextField();
textField_2.setBounds(106, 67, 114, 19);
contentPane.add(textField_2);
textField_2.setColumns(10);
textField_3 = new JTextField();
textField_3.setBounds(106, 106, 114, 19);
contentPane.add(textField_3);
textField_3.setColumns(10);
table = new JTable();
table.setBounds(361, 50, 1, 1);
contentPane.add(table);
final JScrollPane tableScrollPane = new JScrollPane(table);
tableScrollPane.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
tableModel = (DefaultTableModel) table.getModel();
textField.setText(tableModel.getValueAt(table.getSelectedRow(), 0).toString());
textField_1.setText(tableModel.getValueAt(table.getSelectedRow(), 1).toString());
textField_2.setText(tableModel.getValueAt(table.getSelectedRow(), 2).toString());
textField_3.setText(tableModel.getValueAt(table.getSelectedRow(), 3).toString());
}
});
tableScrollPane.setBounds(240, 11, 198, 135);
contentPane.add(tableScrollPane);
JButton btnAjouter = new JButton("Ajouter");
btnAjouter.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
bien.setId_article(textField.getText());
bien.setNom_article(textField_1.getText());
bien.setCategorie(textField_2.getText());
bien.setQuantite(textField_3.getText());
s.save(bien);
s.flush();
tx.commit();
s.close();
}
});
btnAjouter.setBounds(12, 158, 117, 25);
contentPane.add(btnAjouter);
JButton btnEditer = new JButton("Editer");
btnEditer.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
tableModel = (DefaultTableModel) table.getModel();
tableModel.setValueAt(textField.getText(), table.getSelectedRow(), 0);
tableModel.setValueAt(textField_1.getText(), table.getSelectedRow(), 1);
tableModel.setValueAt(textField_2.getText(), table.getSelectedRow(), 2);
tableModel.setValueAt(textField_3.getText(), table.getSelectedRow(), 3);
s.save(bien);
s.flush();
tx.commit();
s.close();
}
});
btnEditer.setBounds(150, 158, 117, 25);
contentPane.add(btnEditer);
JButton btnSupprimer = new JButton("supprimer");
btnSupprimer.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
tableModel = (DefaultTableModel) table.getModel();
tableModel.removeRow(table.getSelectedRow());
SQLQuery query=s.createSQLQuery("DELETE * FROM TBiens WHERE id-article='"+textField.getText()+"'");
s.flush();
tx.commit();
s.close();
}
});
btnSupprimer.setBounds(303, 158, 117, 25);
contentPane.add(btnSupprimer);
JButton btnAfficher = new JButton("Afficher");
btnAfficher.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
try{
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
SQLQuery query=s.createSQLQuery("select * from TBiens");
biens = query.list();
ArrayList<Object[]> res = new ArrayList<Object[]>(biens);
final DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
table.setModel(tableModel);
for (final Object[] bien : res) {
// Assuming each row in the biens list is a list of strings...
final Object[] row = bien;
tableModel.addRow(row);
}
biens.size();
System.out.print(i);
s.flush();
tx.commit();
s.close();
}
catch (ClassCastException e) {
e.printStackTrace();
}
}
});
btnAfficher.setBounds(166, 235, 117, 25);
contentPane.add(btnAfficher);
}
}
输出：
2 个答案:
答案 0 :(得分：2)
编辑
默认情况下，DefaultTableModel会使所有单元格都可编辑，只需双击要更改的单元格，它就会进入“编辑”模型。
要将值保存回数据库将取决于您要采用的方法，您可以覆盖setValueAt方法的TableModel并在调用此方法时推送更改，就个人而言我将添加保存按钮并将更改作为批处理
删除
这有点困难。问题是，一旦删除一行，所有其他所选项目的所有索引都将改变...
更好的解决方案是设计一个hibernate bean / data类并通过Hibernate加载它。然后，您可以使用TableModel的自定义实现，从AbstractTableModel扩展，这将使您可以管理对内容的控制。
然后，您将获取所有选定的对象（这将是您的自定义TableModel中的方法，类似于getValueAt(int row)返回指定行的hibernate对象的方法）然后传递此某种删除方法（即removeValue(TBiens bean)），触发相应的事件通知......
答案 1 :(得分：0)
我终于成功删除和编辑了JTable和数据库中的行。 这是代码：
package com.hibernate.stock;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.table.DefaultTableModel;
import java.awt.GridLayout;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTable;
import javax.swing.JButton;
import org.hibernate.Query;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.List;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class Gestion extends JFrame {
private JPanel contentPane;
private JTextField textField;
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTable table;
List biens;
int i;
PersistantBien bien = new PersistantBien();
final String columnNames[] = {"ID", "Nom", "Catégorie", "Quantité"};
final DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Gestion frame = new Gestion();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public Gestion() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
JLabel lblId = new JLabel("ID:");
lblId.setBounds(12, 12, 70, 15);
contentPane.add(lblId);
JLabel lblNom = new JLabel("nom:");
lblNom.setBounds(12, 39, 70, 15);
contentPane.add(lblNom);
JLabel lblCatgorie = new JLabel("catégorie:");
lblCatgorie.setBounds(12, 69, 70, 15);
contentPane.add(lblCatgorie);
JLabel lblQuantit = new JLabel("quantité:");
lblQuantit.setBounds(12, 108, 70, 15);
contentPane.add(lblQuantit);
textField = new JTextField();
textField.setBounds(106, 10, 114, 19);
contentPane.add(textField);
textField.setColumns(10);
textField_1 = new JTextField();
textField_1.setBounds(106, 37, 114, 19);
contentPane.add(textField_1);
textField_1.setColumns(10);
textField_2 = new JTextField();
textField_2.setBounds(106, 67, 114, 19);
contentPane.add(textField_2);
textField_2.setColumns(10);
textField_3 = new JTextField();
textField_3.setBounds(106, 106, 114, 19);
contentPane.add(textField_3);
textField_3.setColumns(10);
table = new JTable();
table.setBounds(361, 50, 1, 1);
contentPane.add(table);
final JScrollPane tableScrollPane = new JScrollPane(table);
tableScrollPane.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
tableModel = (DefaultTableModel) table.getModel();
textField.setText(tableModel.getValueAt(table.getSelectedRow(), 0).toString());
textField_1.setText(tableModel.getValueAt(table.getSelectedRow(), 1).toString());
textField_2.setText(tableModel.getValueAt(table.getSelectedRow(), 2).toString());
textField_3.setText(tableModel.getValueAt(table.getSelectedRow(), 3).toString());
}
});
tableScrollPane.setBounds(240, 11, 198, 135);
contentPane.add(tableScrollPane);
JButton btnAjouter = new JButton("Ajouter");
btnAjouter.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
bien.setId_article(textField.getText());
bien.setNom_article(textField_1.getText());
bien.setCategorie(textField_2.getText());
bien.setQuantite(textField_3.getText());
s.save(bien);
s.flush();
tx.commit();
s.close();
}
});
btnAjouter.setBounds(12, 158, 117, 25);
contentPane.add(btnAjouter);
JButton btnEditer = new JButton("Editer");
btnEditer.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
tableModel = (DefaultTableModel) table.getModel();
tableModel.setValueAt(textField.getText(), table.getSelectedRow(), 0);
tableModel.setValueAt(textField_1.getText(), table.getSelectedRow(), 1);
tableModel.setValueAt(textField_2.getText(), table.getSelectedRow(), 2);
tableModel.setValueAt(textField_3.getText(), table.getSelectedRow(), 3);
SQLQuery query=s.createSQLQuery("update TBiens "
+ "set id_article='"+ table.getValueAt(table.getSelectedRow(),0) +"', "
+ "nom_article= '"+ table.getValueAt(table.getSelectedRow(),1) +"', "
+ "categorie= '"+ table.getValueAt(table.getSelectedRow(),2) +"' , "
+ "quantite= '"+ table.getValueAt(table.getSelectedRow(),0) +"' "
+ "where id_article = '"+ table.getValueAt(table.getSelectedRow(),0) +"'");
query.executeUpdate();
s.flush();
tx.commit();
s.close();
}
});
btnEditer.setBounds(150, 158, 117, 25);
contentPane.add(btnEditer);
JButton btnSupprimer = new JButton("supprimer");
btnSupprimer.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
tableModel = (DefaultTableModel) table.getModel();
SQLQuery query=s.createSQLQuery("delete from TBiens where id_article = '"+ table.getValueAt(table.getSelectedRow(),0) +"'");
query.executeUpdate();
tableModel.removeRow(table.getSelectedRow());
s.flush();
tx.commit();
s.close();
}
});
btnSupprimer.setBounds(303, 158, 117, 25);
contentPane.add(btnSupprimer);
JButton btnAfficher = new JButton("Afficher");
btnAfficher.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
try{
Configuration cfg = new Configuration();
cfg.configure("hibernate.cfg.xml");
SessionFactory sf = cfg.buildSessionFactory();
Session s = sf.openSession();
Transaction tx = s.beginTransaction();
SQLQuery query=s.createSQLQuery("select * from TBiens");
biens = query.list();
ArrayList<Object[]> res = new ArrayList<Object[]>(biens);
final DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
table.setModel(tableModel);
for (final Object[] bien : res) {
// Assuming each row in the biens list is a list of strings...
final Object[] row = bien;
tableModel.addRow(row);
}
biens.size();
System.out.print(i);
s.flush();
tx.commit();
s.close();
}
catch (ClassCastException e) {
e.printStackTrace();
}
}
});
btnAfficher.setBounds(166, 235, 117, 25);
contentPane.add(btnAfficher);
}
}
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