BELAJAR NETBEANS MEMBUAT LOGIN DENGAN DATABASE

Selamat mencoba jika masih ada yg error bisa ditanyain gan.,.,.,.!!!!



 private void jDesktopPane5MouseClicked(java.awt.event.MouseEvent evt) {                                          
    String nama = namalogin.getText();
    String pass = jPasswordField1.getText();
  
   
    try
    {
        String sql = "SELECT * from database_admin where username = '" + nama + "' and password= '" + pass +"'";
        Statement stat = cn.createStatement();
        ResultSet rs = stat.executeQuery(sql);
       
       
        rs.last();
        if(rs.getRow() > 0)
        {  
            dispose();
            tambah_data tama = new tambah_data();
            tama.show();
           
        }
        else
        {
            JOptionPane.showMessageDialog(null,"username dan password yg anda masukkan salah !!!",".:: error login ::.",0);
        }
   
    }
    catch (Exception e)
    {
        System.out.println("Error " + e);
    }                                      
      // TODO add your handling code here:
    }