feat(DevWeb): Support multiple databases (test, prod)

S2/DevWeb/Projet/src/main/java/uppa/project/Main.java

@@ -15,11 +15,11 @@ public class Main {
 //      DAO<Player> daoJpaPlayer = jpaDaoFactory.getDAOPlayer();
 
       // Contenu de la BD au début
-//      User[] users = daoJpaUser.findAll();
-//      for (User u : users) {
-//        System.out.println(u.toString());
-//      }
-//      System.out.println();
+      User[] users = daoJpaUser.findAll();
+      for (User u : users) {
+        System.out.println(u.toString());
+      }
+      System.out.println();
 
 //      // Ajout d'User :
 //      Calendar cal1 = Calendar.getInstance();
@@ -33,12 +33,12 @@ public class Main {
 //      daoJpaUser.create(user1);
 //      daoJpaUser.create(user2);
 
-      System.out.println("test récupération user");
-      User[] users2 = daoJpaUser.findByField("username", "Kevin");
-      for (User user : users2) {
-        System.out.println(user.toString());
-      }
-      System.out.println("fin test");
+//      System.out.println("test récupération user");
+//      User[] users2 = daoJpaUser.findByField("username", "Kevin");
+//      for (User user : users2) {
+//        System.out.println(user.toString());
+//      }
+//      System.out.println("fin test");
     } catch (DAOException e) {
       throw new RuntimeException(e);
     }

S2/DevWeb/Projet/src/main/java/uppa/project/provider/DotenvProvider.java

@@ -0,0 +1,14 @@
+package uppa.project.provider;
+
+import io.github.cdimascio.dotenv.Dotenv;
+
+public class DotenvProvider {
+  static Dotenv instance;
+
+  public static Dotenv getInstance() {
+    if (instance == null) {
+      instance = Dotenv.configure().load();
+    }
+    return instance;
+  }
+}

S2/DevWeb/Projet/src/main/java/uppa/project/provider/EntityManagerProvider.java

@@ -18,8 +18,7 @@ import jakarta.persistence.Persistence;
  * @see jakarta.persistence.EntityManager
  */
 public final class EntityManagerProvider {
-
-  private final static String PERSISTANCE_UNIT_NAME = "db";
+  private static final String PERSISTANCE_UNIT_NAME = DotenvProvider.getInstance().get("PERSISTANCE_UNIT_NAME");
   private static EntityManager instance;
   private static EntityManagerFactory factory;