Možná vás to nastartuje.
Tento kód by měl zobrazit tabulky z databáze v poli se seznamem. Poté, když vyberete tabulku z pole se seznamem, měl by se zobrazit všechny sloupce v tabulce.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.sql.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class DatabaseInformation extends JFrame implements ActionListener
{
DatabaseMetaData dmd;
ResultSet rs;
ResultSetMetaData md;
int columns;
JComboBox comboBox;
JTable table;
String catalog;
public DatabaseInformation()
{
comboBox = new JComboBox();
Vector columnNames = new Vector();
Vector data = new Vector();
try
{
// Connect to the Database
String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
// String url = "jdbc:odbc:Teenergy"; // if using ODBC Data Source name
String url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=c:/teenergy/data/teenergy.mdb";
String userid = "";
String password = "";
Class.forName( driver );
Connection connection = DriverManager.getConnection( url, userid, password );
dmd = connection.getMetaData();
// Get the first Catalog
// Note: the result set can contain multiple catalogs, just look at the first one
rs = dmd.getCatalogs();
if (rs.next())
{
catalog = rs.getObject(1).toString();
System.out.println( catalog );
}
rs.close();
// Get Tables
rs = dmd.getTables(catalog, null, null, new String[] { "TABLE" });
md = rs.getMetaData();
columns = md.getColumnCount();
while (rs.next())
{
comboBox.addItem( rs.getObject(3) );
}
rs.close();
}
catch(Exception e)
{
System.out.println( e );
}
comboBox.addActionListener( this );
getContentPane().add(comboBox, BorderLayout.NORTH);
// Create table with database data
table = new JTable();
JScrollPane scrollPane = new JScrollPane( table );
getContentPane().add( scrollPane );
}
public void actionPerformed(ActionEvent e)
{
String table = (String)comboBox.getSelectedItem();
displayTableColumns( table );
}
private void displayTableColumns(String tableName)
{
try
{
// Get Columns
rs = dmd.getColumns(catalog, null, tableName, null);
md = rs.getMetaData();
int columns = md.getColumnCount();
Vector columnNames = new Vector(columns);
Vector data = new Vector();
// Get column names
for (int i = 1; i <= columns; i++)
{
columnNames.addElement( md.getColumnName(i) );
}
// Get row data
while (rs.next())
{
Vector row = new Vector(columns);
for (int i = 1; i <= columns; i++)
{
row.addElement( rs.getObject(i) );
}
data.addElement( row );
}
rs.close();
// Reset Table
DefaultTableModel model = new DefaultTableModel(data, columnNames);
table.setModel( model );
}
catch(Exception e)
{
System.out.println( e );
}
}
public static void main(String[] args)
{
DatabaseInformation frame = new DatabaseInformation();
frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
frame.pack();
frame.setVisible(true);
}
}
Kód jsem testoval pouze na databázi Accessu, takže si nejsem jistý, co budete muset změnit pro SQLite.