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กระทู้ #681 [Java] (จาก IP: 203.146.63.187)
ช่วยบอกจาวาที่ใช้ login หน่อยครับต้องการใช้ด่วน
ช่วยบอกจาวาที่ใช้ login หน่อยครับต้องการใช้ด่วน
เอาแบบให้มันใส่รหัส ใส่ไอดี ได้ก็พอครับ
และช่วยบอกวิธีใช้ให้ด้วยนะครับ
ขอบคุณมากครับ
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| จากคุณ
:
kaka / deltaforce-x@hotmail.com [2006-11-05 20:36:24]
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ความคิดเห็น #25750 (จาก IP: 203.118.97.85)
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
class login extends JFrame
//implements ActionListener
{
private JLabel lb1,lb2,lb3,lb4;
private JTextField txt1, txt2, txt3;
private JButton b1;
private JPasswordField pws1;
public login()
{
setTitle("Add Data");
Container c = getContentPane();
c.setLayout(null);
c.add(txt1 = new JTextField("", 3));
c.add(txt2 = new JTextField("", 3));
c.add(txt3 = new JTextField("", 3));
c.add(b1 = new JButton("Add"));
c.add(lb1 = new JLabel("Product Id"));
c.add(lb2 = new JLabel("Value"));
c.add(lb3 = new JLabel("Description"));
c.add(lb4 = new JLabel(""));
//c.add(pws1 = new JPasswordField("",3));
lb1.setBounds(10,10,60,20);
txt1.setBounds(100,10,90,20);
lb2.setBounds(10,30,90,20);
txt2.setBounds(100,30,90,20);
b1.setBounds(100,120,90,20);
lb3.setBounds(10,50,130,20);
txt3.setBounds(100,50,90,20);
lb4.setBounds(100,90,150,20);
show();
}
public static void main(String[] args)
{
login f = new login();
f.setSize(400,400);
f.addWindowListener (new WindowAdapter()
{
public void windowClosing( WindowEvent e )
{System.exit(0); }
});
}
}
วิธีใช้ก็ แอดมาถามเอาละกานนะครับ |
| จากคุณ
:
NonTz / nunontz@hotmail.com [2007-07-18 03:59:07]
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ความคิดเห็น #25751 (จาก IP: 203.118.97.85)
| อ่อ มีบางส่วนที่ต้องแก้ใขนะครับ ยังไงๆ ก้ออ่านเอานะ ไม่ยากหรอก |
| จากคุณ
:
NonTz / nunontz@hotmaill.com [2007-07-18 04:09:04]
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ความคิดเห็น #27455 (จาก IP: 222.123.180.79)
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.*;
import javax.swing.JOptionPane;
public class Login extends JFrame implements ActionListener {
private Container container;
private GridBagLayout layout;
private GridBagConstraints gbc;
private JButton cmdLogin, cmdCancel;
private JLabel lblUSer, lblPassword;
private JTextField txtUser;
private JPasswordField txtPassword;
String username = null;
String password = null;
Connection conn = null;
Statement stat;
PreparedStatement pstat = null;
Statement stmt=null;
ResultSet rs = null;
String dbUser = null;
String dbPass = null;
String dbUrl = null;
boolean loop = false;
public Login()
{
// ***************************** Connection ******************************
try
{
dbUser = \"root\";
dbPass = \"123456\";
dbUrl = \"jdbc:mysql://localhost/logistic_db?\" + \"user=root&password=123456\";
Class.forName (\"com.mysql.jdbc.Driver\").newInstance ();
conn = DriverManager.getConnection (dbUrl, dbUser, dbPass);
System.out.println (\"Database connection established\");
stat = conn.createStatement();
System.out.println(\"connection opened\");
}
catch (Exception e)
{
System.err.println (\"Cannot connect to database server\");
}
// ***************************** Connection ******************************
setTitle(\"Login Screen\"); // or //super(\"Login window\");
setExtendedState(JFrame.MAXIMIZED_BOTH);
setResizable(false); //disable resizing and Max button
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setSize(300,150);
setLocationRelativeTo(null);
container = getContentPane();
layout = new GridBagLayout();
container.setLayout(layout);
gbc = new GridBagConstraints();
lblUSer = new JLabel(\"Username:\");
gbc.insets = new Insets(2,2,2,2);
container.add(lblUSer, gbc);
txtUser = new JTextField(15);
gbc.gridx = 1;
gbc.gridwidth = 3;
container.add(txtUser, gbc);
lblPassword = new JLabel(\"Password:\");
gbc.gridy = 1;
gbc.gridx = 0;
gbc.gridwidth = 1;
container.add(lblPassword, gbc);
txtPassword = new JPasswordField(15);
gbc.gridx = 1;
gbc.gridwidth = 3;
container.add(txtPassword, gbc);
cmdLogin = new JButton(\"Login\");
cmdLogin.addActionListener( this );
gbc.gridy = 2;
gbc.gridx = 1;
gbc.gridwidth = 1;
container.add(cmdLogin, gbc);
cmdCancel = new JButton(\"Cancel\");
cmdCancel.addActionListener( this );
gbc.gridx = 2;
container.add(cmdCancel, gbc);
} //Login()
public void actionPerformed(ActionEvent e){
if(e.getActionCommand().equals(\"Login\")){
username = new String(txtUser.getText());
password = new String(txtPassword.getPassword());
System.out.println(\"Username: \" + username);
System.out.println(\"Password: \" + password);
do{
loop = false;
//stmt = conn.createStatement();
//rs = stmt.executeQuery(\"SELECT username,password FROM Login WHERE username=\'\"+username+\"\'and password = \'\"+password+ \"\'\");
pstat = conn.prepareStatement(\"SELECT username,password from Login where username=?\"+ username + \"and password =?\"+password+ \" \");
pstat.setString(1,username);
pstat.setString(2,password);
rs = pstat.executeQuery();
if(!rs.next() && rs.getRow() == 0) {
JOptionPane.showMessageDialog(null, \"Wrong Username or Password, try again\", \"Warning !!!\", JOptionPane.WARNING_MESSAGE);
txtUser.setText(\"\");
txtPassword.setText(\"\");
loop = true;
break;
}
else{
JOptionPane.showMessageDialog(null, \"Welcome, you can use the program ...\", \"Welcome\", JOptionPane.WARNING_MESSAGE);
}
}
while (loop);
}
else
{
//default icon, custom title
int respond = JOptionPane.showConfirmDialog(null, \"Would you like exiting the program ?\", \"Exiting\", JOptionPane.YES_NO_OPTION);
//System.out.println(respond);
if(respond == 0){
dispose (); //closing the frame
}
}
} //actionPerformed()
public static void main(String args[]) {
new Login().setVisible(true);
} //main()
} //Login |
| จากคุณ
:
แอ / itechno.pn@windowslive.com [2009-05-26 13:13:07]
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