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import com.mysql.jdbc.Connection;
import com.mysql.jdbc.Statement;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* authentification.java
*
* Created on 28 janv. 2010, 14:18:16
*/
import java.sql.*;
/**
*
* @author 2MBA
*/
public class authentification extends javax.swing.JFrame {
/** Creates new form authentification */
public authentification() {
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() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
textlogin = new javax.swing.JTextField();
textmdp = new javax.swing.JTextField();
btnseconnecter = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("authentification");
jLabel2.setText("login");
jLabel3.setText("mot de passe");
textlogin.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
textloginActionPerformed(evt);
}
});
textmdp.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
textmdpActionPerformed(evt);
}
});
btnseconnecter.setText("se connecter");
btnseconnecter.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnseconnecterActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(52, 52, 52)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel3)
.addComponent(jLabel2))
.addGap(74, 74, 74)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(textmdp, javax.swing.GroupLayout.PREFERRED_SIZE, 93, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(textlogin, javax.swing.GroupLayout.PREFERRED_SIZE, 93, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGroup(layout.createSequentialGroup()
.addGap(154, 154, 154)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(btnseconnecter)
.addComponent(jLabel1))))
.addContainerGap(117, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(22, 22, 22)
.addComponent(jLabel1)
.addGap(37, 37, 37)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(textlogin, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(60, 60, 60)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(textmdp, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(52, 52, 52)
.addComponent(btnseconnecter)
.addContainerGap(52, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void textloginActionPerformed(java.awt.event.ActionEvent evt) {
}
private void textmdpActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void btnseconnecterActionPerformed(java.awt.event.ActionEvent evt) {
//Param de connection a la base de donné
String url = "jdbc:mysql://localhost:3306/parking"; // ex : postgresql://localhost/postgres
String log = "root";
String pass= "";
String login = "textlogin.getText()";
String motdepasse = "textmdp.getText()";
try
{
// connection
Connection connection = (Connection) DriverManager.getConnection(url,log,pass);
//interaction avec la base
Statement st = (Statement) connection.createStatement();
//Traitement
String sql = "SELECT * FROM gestionnaire g WHERE ((g.login == login ) AND (g.mdp == motdepasse)) ";
ResultSet resultat = st.executeQuery(sql);
if (resultat == null)
{ System.out.println ("erreur");}
else
{ System.out.println ("correct");}
//traitement
st.close();
connection.close();
}
catch(SQLException sqle)
{
sqle.printStackTrace();
}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new authentification().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btnseconnecter;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JTextField textlogin;
private javax.swing.JTextField textmdp;
// End of variables declaration
} |
interface authentification java et connexion à une base de données mysql
Répondre avec citation
, il affiche "correcte" même si le login saisi est faux!
Envoyé par élève_ingénieur
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