Jednak powrót do Spring Boot 2.7.6

PC30-SklepSpring/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>3.0.0</version>
+		<version>2.7.6</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>

PC30-SklepSpring/src/main/java/sklep/alternatywne_wersje_bazy_danych/ProductController_v3.java

@@ -10,8 +10,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 
-import jakarta.persistence.EntityManager;
-import jakarta.persistence.TypedQuery;
+import javax.persistence.EntityManager;
+import javax.persistence.TypedQuery;
 import sklep.model.Product;
 
 @Controller

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

@@ -4,14 +4,15 @@ import java.util.List;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 
-import jakarta.persistence.EntityManager;
-import jakarta.persistence.TypedQuery;
+import javax.persistence.EntityManager;
+import javax.persistence.TypedQuery;
 import sklep.model.Product;
 
 @Controller
@@ -21,19 +22,11 @@ public class ProductController {
 	private EntityManager em;
 	
 	@GetMapping
-	@ResponseBody
-	public String wszystkieProdukty() {
-		StringBuilder sb = new StringBuilder();
+	public String wszystkieProdukty(Model model) {
 		TypedQuery<Product> query = em.createNamedQuery("Product.findAll", Product.class);
 		List<Product> products = query.getResultList();
-		for(Product product : products) {
-			sb.append("* produkt ")
-				.append(product.getProductName())
-				.append(" za cenę ")
-				.append(product.getPrice())
-				.append('\n');
-		}
-		return sb.toString();
+		model.addAttribute("products", products);
+		return "products";
 	}
 
 	@GetMapping("/{id}")

PC30-SklepSpring/src/main/java/sklep/model/Customer.java

 package sklep.model;
 
 import java.io.Serializable;
-import jakarta.persistence.*;
+import javax.persistence.*;
 import java.util.List;
 
 

PC30-SklepSpring/src/main/java/sklep/model/Order.java

 package sklep.model;
 
 import java.io.Serializable;
-import jakarta.persistence.*;
+import javax.persistence.*;
 import java.util.Date;
 import java.sql.Timestamp;
 import java.util.List;

PC30-SklepSpring/src/main/java/sklep/model/OrderProduct.java

 package sklep.model;
 
 import java.io.Serializable;
-import jakarta.persistence.*;
+import javax.persistence.*;
 import java.math.BigDecimal;
 
 

PC30-SklepSpring/src/main/java/sklep/model/OrderProductPK.java

 package sklep.model;
 
 import java.io.Serializable;
-import jakarta.persistence.*;
+import javax.persistence.*;
 
 /**
  * The primary key class for the order_products database table.

PC30-SklepSpring/src/main/java/sklep/model/Product.java

 package sklep.model;
 
 import java.io.Serializable;
-import jakarta.persistence.*;
+import javax.persistence.*;
 import java.math.BigDecimal;
 
 /**