Inicjalizacja sesji w listenerze

PC30-SklepSpring/src/main/java/sklep/basket/BasketConfig.java

+package sklep.basket;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import jakarta.servlet.http.HttpSessionListener;
+
+@Configuration
+public class BasketConfig {
+	
+	{ System.out.println("BasketConfig jest tworzony"); }
+	
+	@Bean
+	HttpSessionListener createListener() {
+		return new BasketListener();
+	}
+
+}

PC30-SklepSpring/src/main/java/sklep/basket/BasketListener.java

+package sklep.basket;
+
+import jakarta.servlet.http.HttpSession;
+import jakarta.servlet.http.HttpSessionEvent;
+import jakarta.servlet.http.HttpSessionListener;
+
+public class BasketListener implements HttpSessionListener {
+
+	public void sessionCreated(HttpSessionEvent se) {
+		HttpSession session = se.getSession();
+		session.setMaxInactiveInterval(30); // sesja wygasa po pół minuty - tylko na potrzeby zajęć
+		session.setAttribute("basket", new Basket());
+		System.out.println("Początek sesji " + session.getId());
+	}
+
+	public void sessionDestroyed(HttpSessionEvent se) {
+		System.out.println("Koniec sesji " + se.getSession().getId());
+	}
+
+}

PC30-SklepSpring/src/main/java/sklep/controller/ProductController.java

@@ -109,10 +109,6 @@ public class ProductController {
 			HttpSession session) {
 		
 		Basket basket = (Basket) session.getAttribute("basket");
-		if(basket == null) {
-			basket = new Basket();
-			session.setAttribute("basket", basket);
-		}
 		Optional<Product> product = productRepository.findById(productId);
 		if(product.isPresent()) {
 			basket.addProduct(product.get());