DEV 3.1 DB

DEV 3.1/Victoire/RefreshListener.java

@@ -0,0 +1,56 @@
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+import java.sql.*;
+
+public class RefreshListener implements ActionListener {
+    public RefreshListener() {
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+        } catch (ClassNotFoundException ex) {
+            System.err.println("MariaDB driver not found");
+            return;
+        }
+        
+        Connection cnx;
+        try {
+            cnx = DriverManager.getConnection("jdbc:mariadb://dwarves.iut-fbleau.fr/horville", "horville", "a5gc95");
+        } catch (SQLException ex) {
+            System.err.println("Unable to access Database.");
+            return;
+        }
+        
+        try {
+            PreparedStatement req = cnx.prepareStatement("SELECT Competiteur, SUM(Points) FROM Vote GROUP BY Competiteur;");
+            req.executeUpdate();
+
+            int maxPoints = 0;
+            String country;
+            ResultSet rs = req.executeQuery();
+            while (rs.next()) {
+                int score = rs.getInt(2);
+                if (score > maxPoints) {
+                    country = rs.getString(1);
+                    maxPoints = score;
+                }
+            }
+
+            rs.close();
+            req.close();
+            
+        } catch (SQLException ex) {
+            System.err.println("SQL Request exception.");
+            System.err.println (ex);
+        }
+
+        try {
+            cnx.close();
+        } catch (SQLException ex) {
+            System.err.println("Unable to close connection.");
+        }
+    }
+
+    public void actionPerformed(ActionEvent e) {
+        Victoire.refresh();
+    }
+}

DEV 3.1/Victoire/Victoire.java

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+import java.sql.*;
+import javax.swing.*;
+import java.awt.*;
+
+public class Victoire {
+
+    public static JLabel scoreLabel;
+    public static JLabel countryLabel;
+
+    public static void refresh() {
+
+    }
+
+    public static void main(String[] args) {
+        JFrame window = new JFrame("Victoire");
+        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        window.setSize(300, 300);
+        window.setLocation(200, 200);
+
+        JButton refreshBT = new JButton("⟳");
+        refreshBT.addActionListener(new RefreshListener());
+        window.add(refreshBT, BorderLayout.SOUTH);
+        window.setVisible(true);
+
+        countryLabel = new JLabel("...", JLabel.CENTER);
+        scoreLabel = new JLabel("0", JLabel.CENTER);
+
+        window.add(countryLabel, BorderLayout.NORTH);
+        window.add(scoreLabel, BorderLayout.CENTER);
+
+        Victoire.refresh();
+    }
+}

DEV 3.1/Vote/Vote.java

@@ -0,0 +1,58 @@
+import java.sql.*;
+
+public class Vote {
+    public static void main(String[] args) {
+        if (args.length < 1) {
+            System.err.println("No country given.");
+            return;
+        }
+
+        try {
+            Class.forName("org.mariadb.jdbc.Driver");
+        } catch (ClassNotFoundException ex) {
+            System.err.println("MariaDB driver not found");
+            return;
+        }
+        
+        Connection cnx;
+        try {
+            cnx = DriverManager.getConnection("jdbc:mariadb://dwarves.iut-fbleau.fr/horville", "horville", "a5gc95");
+        } catch (SQLException ex) {
+            System.err.println("Unable to access Database.");
+            return;
+        }
+        
+        try {
+            PreparedStatement req = cnx.prepareStatement("SELECT Votants, Points FROM Vote WHERE Competiteur = (?);");
+            req.setString(1, args[0]);
+            req.executeUpdate();
+
+            int total = 0;
+            ResultSet rs = req.executeQuery();
+            while (rs.next()) {
+                String country = rs.getString(1);
+                int score = rs.getInt(2);
+
+                total += score;
+
+                System.out.println(country + "  " + score);
+            }
+
+            System.out.println("            ---");
+            System.out.println("Total        " + total);
+
+            rs.close();
+            req.close();
+            
+        } catch (SQLException ex) {
+            System.err.println("SQL Request exception.");
+            System.err.println (ex);
+        }
+
+        try {
+            cnx.close();
+        } catch (SQLException ex) {
+            System.err.println("Unable to close connection.");
+        }
+    }
+}