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Issue#9 : Complex conditional statement #9 #12

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Issue#9 : Complex conditional statement #9 #12

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19 changes: 19 additions & 0 deletions src/DB.java
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Original file line number Diff line number Diff line change
Expand Up @@ -351,6 +351,25 @@ public static void updateProduct(String id,int quan)
}

}

public static String getUserRole(String username, String password) {
String sql = "SELECT Role FROM users WHERE Username = '"+username+" AND Password = '"+password+"'";
try (Connection conn = DBConnection();
PreparedStatement stmt = conn.prepareStatement(sql)) {
stmt.setString(1, username);
stmt.setString(2, password);
try (ResultSet rs = stmt.executeQuery()) {
if (rs.next()) {
return rs.getString("Role");
} else {
return null;
}
}
} catch (SQLException e) {
e.printStackTrace();
return null;
}
}
public static void main(String args[])
{

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84 changes: 47 additions & 37 deletions src/Login.java
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Original file line number Diff line number Diff line change
Expand Up @@ -107,44 +107,12 @@ public void actionPerformed(ActionEvent e) {
});

btnLogin = new JButton("Login");
btnLogin.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
performLogin();
}
});

btnLogin.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
password=passwordField.getText().toString().toLowerCase();
username=usernameField.getText().toString().toLowerCase();
passwordField.setText("");
usernameField.setText("");
if(password.equals("")||username.equals(""))
error.setText(errorText);
else
{
error.setText("");
if(username.equals("admin"))
{
if(DB.varifyLogin(username,password))
{
error.setText("");
AdminPanel p=new AdminPanel();
p.setVisible(true);
}
else
error.setText(errorText);
}
else
{
if(DB.varifyLogin(username,password))
{
error.setText("");
generateInvoice g=new generateInvoice();
g.setVisible(true);
}
else
error.setText(errorText);
}

}
}
});
btnLogin.setBounds(282, 227, 89, 23);
contentPane.add(btnLogin);

Expand All @@ -165,6 +133,48 @@ public void actionPerformed(ActionEvent arg0) {


}
private void performLogin() {
String username = usernameField.getText().trim();
String password = new String(passwordField.getPassword());

if (username.isEmpty() || password.isEmpty()) {
error.setText(errorText);
} else {
String userRole = DB.getUserRole(username, password);
if (userRole != null) {

error.setText("Login successful!");

switch (userRole) {
case "admin":
openAdminPanel();
break;
case "user":
generateInvoice();
break;
default:
error.setText("Unknown user role");
break;
}
} else {
error.setText(errorText);
}
}
}

private void openAdminPanel() {
AdminPanel adminPanel = new AdminPanel();
adminPanel.setVisible(true);
dispose();
}

private void generateInvoice() {
generateInvoice g = new generateInvoice();
g.setVisible(true);
dispose();
}


public static String getMac()
{
InetAddress ip;
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