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- pstm = connection.prepareStatement("SELECT * FROM usuarios");
- package com.gmail.brunodiazmartin5.banco.mysql;
- import java.sql.*;
- import javax.swing.JOptionPane;
- public class Conexion {
- public Connection connection;
- public ResultSet rs;
- public String bd, user, pass;
- public PreparedStatement pstm;
- public Conexion(String bd, String user, String pass){
- this.bd = bd;
- this.user = user;
- this.pass = pass;
- }
- public void conectar(){
- try{
- Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");
- connection = DriverManager.getConnection("jdbc:ucanaccess://"+bd, user, pass);
- }catch(ClassNotFoundException | SQLException ex){
- JOptionPane.showMessageDialog(null, ex.getMessage());
- }
- }
- public boolean consultar(String user, String pass){
- boolean accepted = false;
- conectar();
- try {
- pstm = connection.prepareStatement("SELECT * FROM usuarios");
- rs = pstm.executeQuery();
- while(rs.next()){
- if(rs.getString("Usuario").equals(user) && rs.getString("Pass").equals(pass)){
- accepted = true;
- }else{
- accepted = false;
- }
- }
- } catch (SQLException e) {
- JOptionPane.showMessageDialog(null, e.getMessage());
- e.printStackTrace();
- }
- desconectar();
- return accepted;
- }
- public String getPrivilegio(String user){
- String privilegio = "";
- try {
- pstm = connection.prepareStatement("SELECT Tipo FROM usuarios WHERE Usuario = ?");
- pstm.setString(1, user);
- rs = pstm.executeQuery();
- while(rs.next()){
- String priv = rs.getString("Tipo");
- switch(priv){
- case "admin":
- privilegio = "admin";
- break;
- case "user":
- privilegio = "user";
- break;
- case "cliente":
- privilegio = "cliente";
- break;
- }
- }
- } catch (SQLException e) {
- JOptionPane.showMessageDialog(null, e.getMessage());
- }
- return privilegio;
- }
- public ResultSet consultar(String dni){
- conectar();
- try {
- pstm = connection.prepareStatement("SELECT * FROM usuarios");
- rs = pstm.executeQuery();
- } catch (SQLException e) {
- JOptionPane.showMessageDialog(null, e.getMessage());
- }
- desconectar();
- return rs;
- }
- public void insertar(String nombre, String apellidos, String dni, int saldo, String telefono, String telefono2){
- conectar();
- try {
- pstm = connection.prepareStatement("INSERT INTO clientes VALUES (?, ?, ?, ?, ?, ?)");
- pstm.setString(1, nombre);
- pstm.setString(2, apellidos);
- pstm.setString(3, dni);
- pstm.setInt(4, saldo);
- pstm.setString(5, telefono);
- pstm.setString(6, telefono2);
- pstm.executeQuery();
- } catch (Exception e) {
- JOptionPane.showMessageDialog(null, e.getMessage());
- }
- desconectar();
- }
- public void insertarSaldo(String dni, float saldo){
- conectar();
- desconectar();
- }
- public void retirarSaldo(String dni, String dni2, float saldo){
- String dniOrigen = dni;
- String dniDestino = dni2;
- float saldoR = saldo, saldoA = 0F;
- conectar();
- try {
- pstm = connection.prepareStatement("SELECT * FROM clientes WHERE DNI = ?");
- pstm.setString(1, dniOrigen);
- rs = pstm.executeQuery();
- while(rs.next()){
- saldoA = rs.getInt("Saldo");
- }
- pstm = connection.prepareStatement("UPDATE clientes SET Saldo = ? WHERE DNI = ?");
- pstm.setFloat(1, saldoA - saldoR);
- pstm.setString(2, dniOrigen);
- rs = pstm.executeQuery();
- } catch (SQLException e) {
- JOptionPane.showMessageDialog(null, e.getMessage());
- }
- if(!dni2.equals(null)){
- try{
- pstm = connection.prepareStatement("SELECT * FROM clientes WHERE DNI = ?");
- pstm.setString(1, dniDestino);
- rs = pstm.executeQuery();
- while(rs.next()){
- saldoA = rs.getInt("Saldo");
- }
- pstm = connection.prepareStatement("UPDATE clientes SET Saldo = ? WHERE DNI = ?");
- pstm.setFloat(1, saldoA + saldoR);
- pstm.setString(2, dniDestino);
- rs = pstm.executeQuery();
- }catch(SQLException e){
- JOptionPane.showMessageDialog(null, e.getMessage());
- }
- }
- desconectar();
- }
- public void eliminar(String dni){
- conectar();
- try{
- pstm = connection.prepareStatement("DELETE FROM clientes WHERE DNI = ?");
- pstm.setString(1, dni);
- pstm.executeQuery();
- }catch(SQLException e){
- JOptionPane.showMessageDialog(null, e.getMessage());
- }
- desconectar();
- }
- public void desconectar(){
- try {
- rs.close();
- pstm.close();
- connection.close();
- } catch (SQLException e) {
- e.printStackTrace();
- }
- }
- }
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