106 lines
3.1 KiB
Java
106 lines
3.1 KiB
Java
import java.sql.*;
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import java.util.ArrayList;
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import java.util.List;
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public class BaseDeDonnees {
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private static final String URL = "jdbc:mariadb://dwarves.iut-fbleau.fr/val";
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private static final String USER = "val";
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private static final String PASS = "vali";
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/** Connexion */
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public static Connection getConnexion() throws SQLException {
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try {
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Class.forName("org.mariadb.jdbc.Driver");
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} catch (ClassNotFoundException e) {
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System.out.println("Erreur : pilote MariaDB non trouvé !");
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}
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return DriverManager.getConnection(URL, USER, PASS);
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}
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/** Ajout d’un rappel (INSERT) */
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public static int ajouter(Rappel r) throws SQLException {
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String sql = "INSERT INTO rappel(titre, contenu, theme, rang) VALUES (?, ?, ?, ?)";
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Connection cnx = getConnexion();
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PreparedStatement pst = cnx.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
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pst.setString(1, r.getTitre());
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pst.setString(2, r.getContenu());
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pst.setString(3, r.getTheme());
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pst.setInt(4, r.getRang());
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pst.executeUpdate();
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ResultSet rs = pst.getGeneratedKeys();
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int id = 0;
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if (rs.next()) {
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id = rs.getInt(1);
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r.setId(id);
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}
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rs.close();
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pst.close();
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cnx.close();
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return id;
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}
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/** Liste des rappels */
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public static List<Rappel> lister() throws SQLException {
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String sql = "SELECT id, titre, contenu, theme, rang FROM rappel ORDER BY rang ASC, id ASC";
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List<Rappel> res = new ArrayList<>();
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Connection cnx = getConnexion();
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PreparedStatement pst = cnx.prepareStatement(sql);
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ResultSet rs = pst.executeQuery();
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while (rs.next()) {
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Rappel r = new Rappel(
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rs.getInt("id"),
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rs.getString("titre"),
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rs.getString("contenu"),
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rs.getString("theme"),
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rs.getInt("rang")
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);
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res.add(r);
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}
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rs.close();
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pst.close();
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cnx.close();
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return res;
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}
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/** Modification d’un rappel (UPDATE) */
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public static int modifier(int id, Rappel r) throws SQLException {
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String sql = "UPDATE rappel SET titre=?, contenu=?, theme=?, rang=? WHERE id=?";
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Connection cnx = getConnexion();
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PreparedStatement pst = cnx.prepareStatement(sql);
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pst.setString(1, r.getTitre());
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pst.setString(2, r.getContenu());
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pst.setString(3, r.getTheme());
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pst.setInt(4, r.getRang());
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pst.setInt(5, id);
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int rows = pst.executeUpdate();
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pst.close();
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cnx.close();
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return rows;
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}
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/** Suppression d’un rappel (DELETE) */
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public static int supprimer(int id) throws SQLException {
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String sql = "DELETE FROM rappel WHERE id=?";
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Connection cnx = getConnexion();
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PreparedStatement pst = cnx.prepareStatement(sql);
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pst.setInt(1, id);
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int rows = pst.executeUpdate();
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pst.close();
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cnx.close();
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return rows;
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}
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}
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