Java - Error al conectar con MySQL

   
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Error al conectar con MySQL

Publicado por Darmask (1 intervención) el 21/11/2017 19:43:12
HOLA TENGO UN LOGIN CON CONEXION EN MYSQL PERO ME BOTA ESTE ERROR
Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedOperationException: Not supported yet.
at trabajofinal3.Conexion.getConnection(Conexion.java:56)
at trabajofinal3.Login.login(Login.java:136)
at trabajofinal3.Login.btnIniciarActionPerformed(Login.java:120)
at trabajofinal3.Login.access$000(Login.java:18)
at trabajofinal3.Login$1.actionPerformed(Login.java:72)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)


EL CODIGO DEL LOGIN ES EL SIGUIENTE


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package trabajofinal3;
 
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JOptionPane;
 
/**
 *
 * @author Darmask
 */
public class Login extends javax.swing.JFrame {
 
    //Instancio la clase Postgres
    private Conexion objMysql = new Conexion();
 
    public Login() {
        initComponents();
    }
 
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
 
        lblSesion = new javax.swing.JLabel();
        lblUsuario = new javax.swing.JLabel();
        lblContraseña = new javax.swing.JLabel();
        txtNombre = new javax.swing.JTextField();
        btnIniciar = new javax.swing.JButton();
        txtPassword = new javax.swing.JPasswordField();
        txtUsuario = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        mnuSalir = new javax.swing.JMenuItem();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Inicio Sesion");
        setBackground(new java.awt.Color(255, 0, 0));
        getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
 
        lblSesion.setFont(new java.awt.Font("FreeMono", 1, 18)); // NOI18N
        lblSesion.setForeground(new java.awt.Color(255, 0, 0));
        lblSesion.setText("Inicio De Sesion");
        getContentPane().add(lblSesion, new org.netbeans.lib.awtextra.AbsoluteConstraints(130, 20, -1, -1));
 
        lblUsuario.setFont(new java.awt.Font("DialogInput", 1, 14)); // NOI18N
        lblUsuario.setForeground(new java.awt.Color(255, 255, 255));
        lblUsuario.setText("Usuario :");
        getContentPane().add(lblUsuario, new org.netbeans.lib.awtextra.AbsoluteConstraints(80, 80, -1, -1));
 
        lblContraseña.setFont(new java.awt.Font("DialogInput", 1, 14)); // NOI18N
        lblContraseña.setForeground(new java.awt.Color(255, 255, 255));
        lblContraseña.setText("Contraseña :");
        getContentPane().add(lblContraseña, new org.netbeans.lib.awtextra.AbsoluteConstraints(80, 150, -1, -1));
        getContentPane().add(txtNombre, new org.netbeans.lib.awtextra.AbsoluteConstraints(230, 80, 110, -1));
 
        btnIniciar.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagen/icono1.png.png"))); // NOI18N
        btnIniciar.setText("Iniciar");
        btnIniciar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnIniciarActionPerformed(evt);
            }
        });
        getContentPane().add(btnIniciar, new org.netbeans.lib.awtextra.AbsoluteConstraints(170, 220, 70, 30));
        getContentPane().add(txtPassword, new org.netbeans.lib.awtextra.AbsoluteConstraints(230, 160, 110, -1));
 
        txtUsuario.setIcon(new javax.swing.ImageIcon(getClass().getResource("/imagen/fondo.jpg"))); // NOI18N
        getContentPane().add(txtUsuario, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 6, 443, 288));
 
        jMenu1.setText("Archivo");
 
        mnuSalir.setText("Salir");
        mnuSalir.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                mnuSalirActionPerformed(evt);
            }
        });
        jMenu1.add(mnuSalir);
 
        jMenuBar1.add(jMenu1);
 
        setJMenuBar(jMenuBar1);
 
        pack();
    }// </editor-fold>
 
    private void mnuSalirActionPerformed(java.awt.event.ActionEvent evt) {
        System.exit(0);
    }
 
    private void btnIniciarActionPerformed(java.awt.event.ActionEvent evt) {
 
        String usuario = txtNombre.getText();
        String password = txtPassword.getText();
 
        //VAlidacion de campos vacios
        if(txtNombre.getText().equals("")){
            JOptionPane.showMessageDialog(null,"Debe de Ingresar el Usuario");
            txtUsuario.requestFocus();
            return;
        }
       if(txtPassword.getText().equals("")){
            JOptionPane.showMessageDialog(null, "Debe de Ingresar la Contraseña");
            txtPassword.requestFocus();
            return;
        }
       else{
           try{
               login(usuario , password);
           }catch(SQLException ex){
               JOptionPane.showMessageDialog(null, ex);
 
           }
       }
 
 
    }
 
    public void login(String usuario , String password) throws SQLException{
        String SQL;
        String tipoUsuario="";
        Conexion con = new Conexion();
        Connection cnn = con.getConnection();
        SQL="SELECT * FROM usuarios WHERE  usuario ='"+usuario+"' AND pass ='"+password+"'";
        Statement st = cnn.createStatement();
        ResultSet rs = st.executeQuery(SQL);
 
        while(rs.next()){
            tipoUsuario = rs.getString("tipoUsuario");
        }
        if(tipoUsuario.equals("administrador")){
            ReporteVentas obj = new ReporteVentas();
            obj.setVisible(true);
            this.dispose();
        }
        if(tipoUsuario.equals("supervisor")){
            Supervisor obj = new Supervisor();
            obj.setVisible(true);
            this.dispose();
        }
       txtNombre.setText("");
       txtPassword.setText("");
       txtNombre.requestFocus();
 
    }
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
 
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Login().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify
    private javax.swing.JButton btnIniciar;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JLabel lblContraseña;
    private javax.swing.JLabel lblSesion;
    private javax.swing.JLabel lblUsuario;
    private javax.swing.JMenuItem mnuSalir;
    private javax.swing.JTextField txtNombre;
    public javax.swing.JPasswordField txtPassword;
    private javax.swing.JLabel txtUsuario;
    // End of variables declaration
}
ALGUIEN ME PUEDE AYUDAR
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Error al conectar con MySQL

Publicado por Ancelmo (1 intervención) el 21/11/2017 21:12:49
Hola.
Deberìa de ocupar un try catch para ver donde se localiza el error.
La variables SQL y tipousuario son globales? donde la declaraste?


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try {
        Conexion con = new Conexion();
 
        Connection cnn = con.getConnection();
 
        SQL="SELECT * FROM usuarios WHERE  usuario ='"+usuario+"' AND pass ='"+password+"'";
 
        Statement st = cnn.createStatement();
 
        ResultSet rs = st.executeQuery(SQL);
 
 
 
        while(rs.next()){
 
            tipoUsuario = rs.getString("tipoUsuario");
 
        }
 
        if(tipoUsuario.equals("administrador")){
 
            ReporteVentas obj = new ReporteVentas();
 
            obj.setVisible(true);
 
            this.dispose();
 
        }
 
        if(tipoUsuario.equals("supervisor")){
 
            Supervisor obj = new Supervisor();
 
            obj.setVisible(true);
 
            this.dispose();
 
        }
 
       txtNombre.setText("");
 
       txtPassword.setText("");
 
       txtNombre.requestFocus();
} catch(SQLException e) {
System.out.println("El error es: "  + e.getCause());
}
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