// event handling
public void actionPerformed(ActionEvent e) {
if (e.getSource() == btnok) {
PreparedStatement pstm;
ResultSet rs;
String sql;
// if no entries has been made and hit ok button throw an error
// you can do this step using try clause as well
if ((tf1.getText().equals("") && (tf2.getText().equals("")))) {
lblmsg.setText("Enter your details ");
lblmsg.setForeground(Color.magenta);
} else {
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection connect = DriverManager.getConnection("jdbc:odbc:student_base");
System.out.println("Connected to the database");
pstm = connect.prepareStatement("insert into student_base values(?,?)");
pstm.setString(1, tf1.getText());
pstm.setString(2, tf2.getText());
// execute method to execute the query
pstm.executeUpdate();
lblmsg.setText("Details have been added to database");
// closing the prepared statement and connection object
pstm.close();
connect.close();
} catch (SQLException sqe) {
System.out.println("SQl error");
} catch (ClassNotFoundException cnf) {
System.out.println("Class not found error");
}
}
}
// upon clickin button addnew , your textfield will be empty to enternext record
if (e.getSource() == btnaddnew) {
tf1.setText("");
tf2.setText("");
}
if (e.getSource() == btnexit) {
System.exit(1);
}
}
public Design() throws Exception {
super.setBackground(Color.BLACK);
this.setTitle("");
con = getContentPane();
con.setLayout(null);
dim = tk.getDefaultToolkit().getScreenSize();
this.setTitle("Customer Peer Login");
l1 = new JLabel(new ImageIcon("plain.jpg"));
l1.setBounds(0, 0, 400, 400);
con.add(l1);
l1.setBorder(BorderFactory.createEtchedBorder(5, Color.black, Color.black));
title = new JLabel("CUSTOMER PEER LOGIN ");
title.setFont(new Font("Bookman Old Style", Font.ROMAN_BASELINE, 20));
title.setForeground(Color.red);
title.setBounds(80, 30, 300, 30);
l1.add(title);
l4 = new JLabel("CMACHINE NAME");
l4.setFont(new Font("Bookman Old Style", Font.BOLD, 16));
l4.setForeground(Color.BLUE);
l4.setBounds(70, 100, 160, 20);
// l4.setBorder(BorderFactory.createEtchedBorder(5,Color.green,Color.green));
l1.add(l4);
jtf2 = new JTextField();
jtf2.setBounds(250, 100, 100, 20);
jtf2.setBorder(BorderFactory.createEtchedBorder(5, Color.green, Color.green));
l1.add(jtf2);
l2 = new JLabel("CUSER LOGIN");
l2.setFont(new Font("Bookman Old Style", Font.BOLD, 16));
l2.setForeground(Color.blue);
l2.setBounds(70, 150, 120, 20);
l1.add(l2);
jtf1 = new JTextField();
jtf1.setBounds(250, 150, 100, 20);
jtf1.setBorder(BorderFactory.createEtchedBorder(5, Color.green, Color.green));
l1.add(jtf1);
l3 = new JLabel("CPASSWORD");
l3.setFont(new Font("Bookman Old Style", Font.BOLD, 16));
l3.setForeground(Color.blue);
l3.setBounds(70, 200, 120, 20);
l1.add(l3);
jptf1 = new JPasswordField();
jptf1.setBounds(250, 200, 100, 20);
jptf1.setBorder(BorderFactory.createEtchedBorder(5, Color.green, Color.green));
l1.add(jptf1);
JLabel l4 = new JLabel("DAgent");
l4.setFont(new Font("Bookman Old Style", Font.BOLD, 16));
l4.setForeground(Color.blue);
l4.setBounds(70, 250, 120, 20);
l1.add(l4);
box = new JComboBox();
box.setBounds(250, 250, 100, 20);
box.setBorder(BorderFactory.createEtchedBorder(5, Color.green, Color.green));
l1.add(box);
b2 = new JButton("Register");
b2.setBounds(50, 300, 100, 20);
l1.add(b2);
b2.setBorder(BorderFactory.createEtchedBorder(10, Color.BLUE, Color.BLUE));
b3 = new JButton("Login");
b3.setBounds(150, 300, 100, 20);
b3.setBorder(BorderFactory.createEtchedBorder(10, Color.BLUE, Color.BLUE));
l1.add(b3);
b1 = new JButton("Cancel");
b1.setBounds(250, 300, 100, 20);
b1.setBorder(BorderFactory.createEtchedBorder(10, Color.BLUE, Color.BLUE));
l1.add(b1);
b1.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent we) {
dispose();
}
});
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn = DriverManager.getConnection("jdbc:odbc:agent");
} catch (Exception exp) {
}
try {
Statement satem = conn.createStatement();
ResultSet rsatem = satem.executeQuery("select * from Dagent");
while (rsatem.next()) {
String namem = rsatem.getString("uname");
box.addItem(namem);
}
} catch (Exception expo1) {
}
b2.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent we) {
String username = jtf1.getText().trim();
String password = jptf1.getText().trim();
String mechine = jtf2.getText().trim();
String dname = box.getSelectedItem().toString();
int porte = 0;
try {
Statement sate = conn.createStatement();
ResultSet rsate =
sate.executeQuery("select * from Dagent where uname='" + dname + "'");
if (rsate.next()) {
servermachine = rsate.getString("umechine");
porte = rsate.getInt("ulistport");
System.out.println(servermachine);
}
System.out.println(servermachine);
} catch (Exception exp) {
exp.printStackTrace();
}
try {
packet p = new packet();
p.setaction("Creg");
p.setCuser(username);
p.setCpass(password);
p.setCmname(mechine);
p.setCDpeer(dname);
Socket soc = new Socket(servermachine, porte);
ObjectOutputStream out = new ObjectOutputStream(soc.getOutputStream());
out.writeObject(p);
ObjectInputStream in = new ObjectInputStream(soc.getInputStream());
packet rpac = (packet) in.readObject();
if (rpac.getaction().equals("ok")) {
JOptionPane.showMessageDialog(null, "Sucessfully Registered");
jtf2.setText("");
jtf1.setText("");
jptf1.setText("");
} else {
JOptionPane.showMessageDialog(null, "Already Registered");
jtf2.setText("");
jtf1.setText("");
jptf1.setText("");
}
} catch (Exception exp) {
}
}
});
b3.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent we) {
String username = jtf1.getText().trim();
String password = jptf1.getText().trim();
String mechine = jtf2.getText().trim();
String Dname = box.getSelectedItem().toString();
int porte = 0;
try {
Statement sate = conn.createStatement();
ResultSet rsate =
sate.executeQuery("select * from Dagent where uname='" + Dname + "'");
if (rsate.next()) {
servermachine = rsate.getString("umechine");
porte = rsate.getInt("ulistport");
System.out.println(servermachine);
}
System.out.println(servermachine);
} catch (Exception exp) {
}
try {
packet p1 = new packet();
p1.setaction("clogin");
p1.setCuser(username);
p1.setCpass(password);
p1.setCmname(mechine);
p1.setCDpeer(Dname);
Socket soc1 = new Socket(servermachine, porte);
ObjectOutputStream out1 = new ObjectOutputStream(soc1.getOutputStream());
out1.writeObject(p1);
ObjectInputStream in1 = new ObjectInputStream(soc1.getInputStream());
packet rpac1 = (packet) in1.readObject();
if (rpac1.getaction().equals("ok")) {
int port1 = 0;
try {
int portm = rpac1.getCport();
System.out.println("XXXXXXX" + portm);
// JOptionPane.showMessageDialog(null,"Sucessfully Started");
new Listen(portm);
new process(username, portm);
dispose();
} catch (Exception exp) {
}
} else {
JOptionPane.showMessageDialog(
null, "Enter valid username and password", "Server reply", 2);
jtf1.setText("");
jtf2.setText("");
jptf1.setText("");
}
} catch (Exception exp) {
}
}
});
setSize(400, 400);
show();
setLocation(150, 100);
setResizable(false);
}