无法从结果集Java填充JTable

Question

With this code the table is filled successfully but without the message dialog nothing inserted to the jtable !

String sql2 = "SELECT type, amount FROM lasttransactions where cust_id = ?";
PreparedStatement ps2=conn.prepareStatement(sql2);
ps2.setInt(1,Integer.parseInt(_userid));
ResultSet rs2=ps2.executeQuery();


DefaultTableModel model = (DefaultTableModel) transtable.getModel();
Object[] row; String type; double amount ;
while(rs2.next()) {
     type = rs2.getString("type");
     amount = rs2.getDouble("amount");

    row = new Object []{ type, amount };            


    model.addRow(row);
    JOptionPane.showMessageDialog(null,"added !");   


    transtable.setModel(model);
}

Answer 1

How i did it.May it will help you to solve your problem.

    ResultSet rs = null;
    try{
        connection = DriverManager.getConnection("jdbc:mysql://localhost/myDB", "root", "password");
        Class.forName("com.mysql.jdbc.Driver");
        Statement stmt = connection.createStatement();
        String query = "select * from somewhere;";
        rs = stmt.executeQuery(query);          
    } catch (Exception e) {
        e.printStackTrace();
    }  finally {
        rs.close();
    }
    table.setModel(DbUtils.resultSetToTableModel(rs));