loginframe.java

Grid based Search Engine

import java.awt.*;
import java.sql.*;
import java.awt.event.*;
import javax.swing.*;

public class LoginFrame extends JFrame {
  JPanel contentPane;
  JLabel jLabelLogin = new JLabel();
  JLabel jLabelPassword = new JLabel();
  TextField textFieldPass = new TextField();
  JButton jButtonOk = new JButton();
  JButton jButtonCan = new JButton();
  TextField textFieldLog = new TextField();
  JLabel jLabel1 = new JLabel();

  /**Construct the frame*/
  public LoginFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    jLabelLogin.setOpaque(true);
    jLabelLogin.setHorizontalAlignment(SwingConstants.RIGHT);
    jLabelLogin.setText("Login   ");
    jLabelLogin.setBounds(new Rectangle(28, 34, 65, 25));
    jLabelLogin.setBackground(new java.awt.Color(204, 204, 255));
    jLabelLogin.setForeground(new java.awt.Color(51, 0, 255));
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Loginframe.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(null);
    this.setResizable(false);
    this.setSize(new Dimension(400, 300));
    this.setTitle("User Authentication");
    this.setVisible(true);
    setSize(350,200);
    jLabelPassword.setOpaque(true);
    jLabelPassword.setHorizontalAlignment(SwingConstants.RIGHT);
    jLabelPassword.setText("Password   ");
    jLabelPassword.setBounds(new Rectangle(15, 76, 77, 22));
    jLabelPassword.setBackground(new java.awt.Color(204, 204, 255));
    jLabelPassword.setForeground(new java.awt.Color(51, 0, 255));
    textFieldPass.setBounds(new Rectangle(101, 75, 172, 21));
    jButtonOk.setBorder(BorderFactory.createEtchedBorder());
    jButtonOk.setMargin(new Insets(10, 14, 10, 14));
    jButtonOk.setText("Ok");
    jButtonOk.setBounds(new Rectangle(101, 114, 77, 25));
    jButtonOk.setBackground(new java.awt.Color(204, 204, 255));
    jButtonOk.setForeground(new java.awt.Color(51, 0, 255));
    jButtonOk.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButtonOk_actionPerformed(e);
      }
    });

    jButtonCan.setBorder(BorderFactory.createEtchedBorder());
    jButtonCan.setText("Cancel");
   jButtonCan.setBounds(new Rectangle(197, 114, 74, 26));
    jButtonCan.setBackground(new java.awt.Color(204, 204, 255));
    jButtonCan.setForeground(new java.awt.Color(51, 0, 255));
    jButtonCan.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButtonCan_actionPerformed(e);
      }
    });
    textFieldLog.setBounds(new Rectangle(101, 33, 173, 22));
    jLabel1.setForeground(new Color(223, 66, 0));
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setHorizontalTextPosition(SwingConstants.CENTER);
    jLabel1.setBounds(new Rectangle(61, 6, 265, 21));
    contentPane.setBackground(new java.awt.Color(204, 204, 255));
    contentPane.add(jLabelLogin, null);
    contentPane.add(textFieldLog, null);
    contentPane.add(jLabelPassword, null);
    contentPane.add(textFieldPass, null);
    contentPane.add(jButtonOk, null);
    contentPane.add(jButtonCan, null);
    contentPane.add(jLabel1, null);
    textFieldPass.setEchoChar('*');
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      this.dispose();
    }
  }



  void jButtonOk_actionPerformed(ActionEvent e) 
{
  // databse handling code here:
        String id=textFieldLog.getText();
        String password=textFieldPass.getText();
		java.sql.Connection conn=null;
        try{
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
			conn=java.sql.DriverManager.getConnection("jdbc:odbc:search","","");
                        java.sql.PreparedStatement ps=conn.prepareStatement("select id,password from Logintable where id=? and password=?");
			ps.setString(1,id);
			ps.setString(2,password);
			java.sql.ResultSet rs=ps.executeQuery();
			if(rs.next())
			{
				FrameMain.jMenuItemStop.setEnabled(false);
			      FrameMain.jMenuItemRun.setEnabled(true);
				FrameMain.jMenuItemStopi.setEnabled(false);
			      FrameMain.jMenuItemRuni.setEnabled(true);
				FrameMain.jMenuItemChangePass.setEnabled(true);
				dispose();
				System.out.println("valid");
			}
 			 else
			  {
				  jLabel1.setText("LOGIN FAILED!");
				  textFieldLog.setText("");
				  textFieldPass.setText("");
				  textFieldLog.requestFocus();
				  FrameMain.jMenuItemRun.setEnabled(false);  //****write true for false
				  FrameMain.jMenuItemRuni.setEnabled(false);//*****write false for true
				  FrameMain.jMenuItemChangePass.setEnabled(false);
			  }
			}catch(Exception ae){System.out.println(ae.getMessage());}
		finally{
			if(conn!=null)
			{
				try{
					conn.close();
				}catch(Exception e1){System.out.println(e1.getMessage());}
		    }}

}

  void jButtonCan_actionPerformed(ActionEvent be) {
  dispose();

  }

/*public static void main(String args[])
{
	new LoginFrame();
}
*/


}