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TP_DEV3.1/Base de donnée/Vote.java

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+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.mariadb.jdbc.*;
+
+public class Vote {
+
+private static final String lien = "jdbc:mariadb://dwarves.iut-fbleau.fr/yolou";
+private static final String user = "yolou";
+private static final String mdp = "serikhanejunior";
+
+public static void main(String[] args) {
+    
+
+
+
+if(args.length !=1 ){
+
+System.err.println("Met un seul pays ");
+System.exit(0);
+
+
+}
+
+String pays = args[0];
+
+try {
+
+Class.forName("org.mariadb.jdbc.Driver");
+}catch(ClassNotFoundException e) {
+
+    System.err.println("Il y'a pas de DriverManager Maria DB");
+}
+
+String requete_sql = "Select pays_votant as votant, p.points" +
+"FROM Points p " +
+"JOIN Competiteur c ON p.competiteur_id = c.id " +
+"JOIN Votant v ON p.votant_id = v.id " +
+"WHERE c.pays = ? " +
+"ORDER BY v.pays_votant";
+
+String totalSql =
+"SELECT SUM(p.points) " +
+"FROM Points p " +
+"JOIN Competiteur c ON p.competiteur_id = c.id " +
+"WHERE c.pays = ?";
+
+Connection cnx = DriverManager.getConnection(lien, user, mdp);
+PreparedStatement pst = cnx.prepareStatement(requete_sql);
+PreparedStatement pstTotal = cnx.prepareStatement(totalSql);
+
+pst.setString(1, pays);
+try (ResultSet rs = pst.executeQuery()) {
+while (rs.next()) {
+String votant = rs.getString("votant");
+int pts = rs.getInt("points");
+System.out.printf("%-10s %d%n", votant, pts);
+}
+}
+
+pstTotal.setString(1, pays);
+try (ResultSet rsT = pstTotal.executeQuery()) {
+rsT.next();
+int total = rsT.getInt(1);
+System.out.println("---------");
+System.out.println("Total " + total);
+}
+
+} catch (SQLException e) {
+System.err.println("Erreur SQL : " + e.getMessage());
+}
+
+}
+
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+
+}