Example based on external wing-non-connected database, external wing Database

Example based on external wing-non-connected database, external wing Database

Project Structure:

　　

Constant. java

Package com. mstf. test; import java. io. serializable; public class Constant implements Serializable {public static final long serialVersionUID = 1L; // public static final String URI1 = "the first URL to be opened "; public static final String URI2 = "the second URL to be opened"; // account and password public static final String userName = "admin "; public static final String passWord = "123456 ";}

Test. java

Package com. mstf. test; import java. awt. desktop; import java. awt. eventQueue; import javax. swing. JFrame; import javax. swing. JPanel; import javax. swing. JPasswordField; import javax. swing. border. emptyBorder; import javax. swing. JLabel; import javax. swing. JOptionPane; import javax. swing. JTextField; import javax. swing. JButton; import java. awt. event. actionListener; import java. io. IOException; import java.net. URI; import Java.net. URISyntaxException; import java. awt. event. actionEvent; import java. awt. color; import java. awt. font; import java. awt. toolkit; public class Test extends JFrame {private static final long serialVersionUID = 1L; private JPanel contentPane; private JTextField text_userName; private JTextField text_passWord;/*** Launch the application. */public static void main (String [] args) {EventQueue. invokeLater (New Runnable () {public void run () {try {Test frame = new Test (); frame. setVisible (true);} catch (Exception e) {e. printStackTrace () ;}});}/*** Create the frame. */public Test () {setIconImage (Toolkit. getdefatooltoolkit (). getImage (Test. class. getResource ("/images/favicon.png"); setTitle ("rain fall autumn-Background Logon"); setdefaclocloseoperation (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); JLabel labe_l1 = new JLabel ("username:"); labe_l1.setForeground (Color. RED); labe_l1.setBounds (86, 86, 54, 15); contentPane. add (labe_l1); JLabel label_2 = new JLabel ("Password:"); label_2.setForeground (Color. RED); label_2.setBounds (86,130, 54, 15); contentPane. add (label_2); text_userName = new JTextField (); te Xt_userName.setForeground (Color. DARK_GRAY); text_userName.setBounds (144, 83,166, 21); contentPane. add (text_userName); text_userName.setColumns (10); text_passWord = new JPasswordField (); text_passWord.setForeground (Color. DARK_GRAY); text_passWord.setBounds (145,127,165, 21); contentPane. add (text_passWord); text_passWord.setColumns (10); JButton login = new JButton ("log on to the background"); login. setForeground (Color. RED); log In. addActionListener (new ActionListener () {public void actionreceivmed (ActionEvent arg0) {// method of the logon button if (text_userName.getText (). trim (). equals (Constant. userName) & text_passWord.getText (). trim (). equals (Constant. passWord) {JOptionPane. showMessageDialog (contentPane, "Login successful! "," Title ", JOptionPane. WARNING_MESSAGE); StartBrowse (Constant. URI1); System. exit (0);} else {JOptionPane. showMessageDialog (contentPane, "the user name or password is incorrect !! "," Title ", JOptionPane. WARNING_MESSAGE); // The account password is incorrect. The account and password text_userName.setText (""); text_passWord.setText ("") ;}}) are automatically cleared; login. setBounds (70,194, 93, 23); contentPane. add (login); JButton regeist = new JButton ("view permission"); regeist. setForeground (Color. BLUE); regeist. addActionListener (new ActionListener () {public void actionreceivmed (ActionEvent e) {// method of registering a button if (text_userName.getText (). trim (). equals (Constant. userNa Me) & text_passWord.getText (). trim (). equals (Constant. passWord) {JOptionPane. showMessageDialog (contentPane, "Login successful! "," Title ", JOptionPane. WARNING_MESSAGE); StartBrowse (Constant. URI2); System. exit (0);} else {JOptionPane. showMessageDialog (contentPane," You are not logged on !! "," Title ", JOptionPane. WARNING_MESSAGE); // The account password is incorrect. The account and password text_userName.setText (""); text_passWord.setText ("") ;}}) are automatically cleared; regeist. setBounds (255,194, 93, 23); contentPane. add (regeist); JLabel lblHttpsceetgovtop = new JLabel ("Official Website: https://ceet-gov.top"); lblHttpsceetgovtop. setForeground (Color. RED); lblHttpsceetgovtop. setBounds (116,236,222, 15); contentPane. add (lblHttpsceetgovtop); JLabel label = new JLabel ("rain fall autumn-background management system"); label. setForeground (Color. MAGENTA); label. setFont (new Font ("", Font. PLAIN, 36); label. setBounds (23, 23,378, 39); contentPane. add (label);}/*** use the default browser to open the specified hyperlink ** @ param uri */public void StartBrowse (String uri) {Desktop desktop = Desktop. getDesktop (); try {desktop. browse (new URI (uri);} catch (IOException e1) {e1.printStackTrace ();} catch (URISyntaxException e1) {e1.printStackTrace ();}}}