How to get data in jtable from database

Question

i m working on core java application i want to use jtable to show records to user. jtable will get records from mssql database. how to do this.. i m new so plz tell me briefly..with coding...
thanks

Answer 1

i have use this link:
import java.sql.*;
import javax.swing.table.*;
import javax.swing.event.*;
* This class takes a JDBC ResultSet object and implements the TableModel
* interface in terms of it so that a Swing JTable component can display the
* contents of the ResultSet. Note that it requires a scrollable JDBC 2.0
* ResultSet. Also note that it provides read-only access to the results
public class ResultSetTableModel implements TableModel {
ResultSet results; // The ResultSet to interpret
ResultSetMetaData metadata; // Additional information about the results
int numcols, numrows; // How many rows and columns in the table
* This constructor creates a TableModel from a ResultSet. It is package
* private because it is only intended to be used by
* ResultSetTableModelFactory, which is what you should use to obtain a
* ResultSetTableModel
ResultSetTableModel(ResultSet results) throws SQLException {
     this.results = results; // Save the results
     metadata = results.getMetaData(); // Get metadata on them
     numcols = metadata.getColumnCount(); // How many columns?
     results.last(); // Move to last row
     numrows = results.getRow(); // How many rows?
* Call this when done with the table model. It closes the ResultSet and
* the Statement object used to create it.
public void close() {
     try { results.getStatement().close(); }
     catch(SQLException e) {};
/** Automatically close when we're garbage collected */
protected void finalize() { close(); }
// These two TableModel methods return the size of the table
public int getColumnCount() { return numcols; }
public int getRowCount() { return numrows; }
// This TableModel method returns columns names from the ResultSetMetaData
public String getColumnName(int column) {
     try {
     return metadata.getColumnLabel(column+1);
     } catch (SQLException e) { return e.toString(); }
// This TableModel method specifies the data type for each column.
// We could map SQL types to Java types, but for this example, we'll just
// convert all the returned data to strings.
public Class getColumnClass(int column) { return String.class; }
* This is the key method of TableModel: it returns the value at each cell
* of the table. We use strings in this case. If anything goes wrong, we
* return the exception as a string, so it will be displayed in the table.
* Note that SQL row and column numbers start at 1, but TableModel column
* numbers start at 0.
public Object getValueAt(int row, int column) {
     try {
     results.absolute(row+1); // Go to the specified row
     Object o = results.getObject(column+1); // Get value of the column
     if (o == null) return null;
     else return o.toString(); // Convert it to a string
     } catch (SQLException e) { return e.toString(); }
// Our table isn't editable
public boolean isCellEditable(int row, int column) { return false; }
// Since its not editable, we don't need to implement these methods
public void setValueAt(Object value, int row, int column) {}
public void addTableModelListener(TableModelListener l) {}
public void removeTableModelListener(TableModelListener l) {}
the table is showing column name from database but not showing the data in row now what to do