从休眠和Java的MySQL数据库中恢复表Swing

Question

如何显示从MySQL恢复的表（使用ArrayList）并使用JTable将其显示在Java Swing上。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。

类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); 


    } 
} 

Answer 1

对于您想要显示从摆动JTable的TBiens表中的记录，你可以看看下面的堆栈溢出问题的一部分：Load arrayList data into JTable。

我不清楚biens列表中有哪些类型的对象，以及TBiens表在数据库中具有哪些列。

注意：我认为您还需要使biens列表可以访问下面的代码，因为它现在只在btnAfficher按钮的动作侦听器中可见。当你已经解决了这一点，你可以调用fillTable方法来填充摇摆JTable使用正确的数据：

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); 

这fillTable方法看起来是这样的：

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

它终于摸索@Freek德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。