Question

如何显示从MySQL恢复的表（在ArrayList中）并使用JTable在Java Swing上显示它。我认为从MySQL恢复表已完成。我的问题是在JTable上显示它。

任何帮助将不胜感激。

Class Afficher.java

 package com.hibernate.stock;

 import java.awt.BorderLayout;
 import java.awt.EventQueue;

 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.JScrollPane;
 import javax.swing.border.EmptyBorder;
 import javax.swing.table.DefaultTableModel;
 import javax.swing.table.TableModel;
 import javax.swing.JButton;

 import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
 import java.util.ArrayList;
 import java.util.List;

 import org.hibernate.SQLQuery;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
 import org.hibernate.Transaction;
 import org.hibernate.cfg.Configuration;
 import org.hibernate.Query;

 import javax.swing.JTable;
 import javax.swing.JTextArea;

 public class Afficher extends JFrame {

private JPanel contentPane;
private JTable table;
ArrayList<Object[]> biens= new ArrayList<Object[]>();

/**
 * Launch the application.
 */
private void fillTable(final JTable table, final List biens) {
    final String columnNames[] = {"ID", "Nom", "Catégorie", "Quantité"};
    final DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
    table.setModel(tableModel);
    for (final Object bien : biens) {
        // Assuming each row in the biens list is a list of strings...
        final List<Object> row = (List<Object>) bien;
        tableModel.addRow(row.toArray());
    }
}

     public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
        public void run() {
            try {
                Afficher frame = new Afficher();
                frame.setVisible(true);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
     }

     public Afficher() {
    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);

    JButton btnAfficher = new JButton("Afficher");
    btnAfficher.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();
    SQLQuery query=s.createSQLQuery("select * from TBiens");
    biens = (ArrayList) query.list();
    fillTable(table, biens);
    s.flush();
    tx.commit();
    s.close();
        }
    });
    btnAfficher.setBounds(166, 235, 117, 25);
    contentPane.add(btnAfficher);

    JTable table = new JTable();
    fillTable(table, biens);
    // I put the table in a scroll pane and had to make it bigger...
    final JScrollPane tableScrollPane = new JScrollPane(table);
    tableScrollPane.setBounds(224, 90, 400, 500);
    contentPane.add(tableScrollPane);


     }
 }

enter image description here

Answer 1

对于要在Swing TBiens中显示JTable表中记录的部分，您可以查看以下Stack Overflow问题：Load arrayList data into JTable。

我不清楚biens列表中的对象类型以及TBiens表在数据库中的哪些列。

注意：我认为您还希望以下代码可以访问biens列表，因为它现在只能在btnAfficher按钮的动作侦听器中显示。解决了这个问题后，您可以调用fillTable方法用正确的数据填充Swing JTable：

JTable table = new JTable();
fillTable(table, biens);
// I put the table in a scroll pane and had to make it bigger...
final JScrollPane tableScrollPane = new JScrollPane(table);
tableScrollPane.setBounds(224, 90, 400, 500);
contentPane.add(tableScrollPane);

此fillTable方法可能如下所示：

private void fillTable(final JTable table, final List biens) {
    final String columnNames[] = {"Column A", "Column B", "Column C"};
    final DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
    table.setModel(tableModel);
    for (final Object bien : biens) {
        // Assuming each row in the biens list is a list of strings...
        final List<String> row = (List<String>) bien;
        tableModel.addRow(row.toArray());
    }
}

Answer 2

它终于工作了@Freek de Bruijn :)，我编辑了ActionPerformed方法：

           `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 String columnNames[] = {"ID", "Nom", "Catégorie", "Quantité"};
            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();
              }



        }
       });`

非常感谢你。

使用hibernate和java Swing从MySQL DB恢复表

2 个答案: