Сделал image

build.gradle

@@ -13,6 +13,8 @@ repositories {
 }
 
 dependencies {
+	// https://mvnrepository.com/artifact/commons-io/commons-io
+	implementation group: 'commons-io', name: 'commons-io', version: '2.6'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'com.h2database:h2:2.1.210'

src/main/java/ru/ulstu/is/sbapp/HardwareShop/models/Category.java

@@ -10,9 +10,6 @@ public class Category {
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
 
-    @OneToMany(mappedBy = "category")
-    private List<Product> productList;
-
     @Column
     private String name;
 

src/main/java/ru/ulstu/is/sbapp/HardwareShop/models/Manufacturer.java

@@ -10,7 +10,8 @@ public class Manufacturer {
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
 
-    @ManyToMany(mappedBy = "manufacturerList")
+    @ManyToMany(fetch = FetchType.EAGER,
+            mappedBy = "manufacturerList")
     private List<Product> productList;
 
     @Column

src/main/java/ru/ulstu/is/sbapp/HardwareShop/models/Product.java

@@ -1,5 +1,8 @@
 package ru.ulstu.is.sbapp.HardwareShop.models;
 
+import org.hibernate.annotations.LazyCollection;
+import org.hibernate.annotations.LazyCollectionOption;
+
 import java.util.List;
 import java.util.Objects;
 import javax.persistence.*;
@@ -11,17 +14,22 @@ public class Product {
     @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
 
-    @ManyToOne(fetch = FetchType.LAZY)
+    @ManyToOne
+    @LazyCollection(LazyCollectionOption.FALSE)
     @JoinColumn(name = "category_id")
     private Category category;
 
 
-    @ManyToMany
+    @ManyToMany(fetch = FetchType.EAGER)
     @JoinTable(name = "products_manufacturers",
             joinColumns = @JoinColumn(name = "product_fk"),
             inverseJoinColumns = @JoinColumn(name = "manufacturer_fk"))
     private List<Manufacturer> manufacturerList;
 
+    @Lob
+    @Column(name = "photo", columnDefinition="BLOB")
+    private byte[] photo;
+
     @Column
     private Integer price;
 
@@ -29,15 +37,20 @@ public class Product {
 
     }
 
-    public Product(Integer price)
+    public Product(Integer price, byte[] photo)
     {
         this.price = price;
+        this.photo = photo;
     }
 
     public Long getId() { return id; }
 
     public Integer getPrice() { return price; }
 
+    public byte[] getPhoto() { return photo; }
+
+    public void setPhoto(byte[] photo) { this.photo = photo; }
+
     public void setPrice(Integer price) { this.price = price; }
 
     public List<Manufacturer> getManufacturerList() { return manufacturerList; }

src/main/java/ru/ulstu/is/sbapp/HardwareShop/services/ProductService.java

@@ -1,14 +1,26 @@
 package ru.ulstu.is.sbapp.HardwareShop.services;
 
+import org.apache.commons.io.IOCase;
+import org.apache.commons.io.IOUtils;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StringUtils;
+import ru.ulstu.is.sbapp.HardwareShop.models.Category;
 import ru.ulstu.is.sbapp.HardwareShop.models.Manufacturer;
 import ru.ulstu.is.sbapp.HardwareShop.models.Product;
 
+import javax.imageio.ImageIO;
 import javax.persistence.EntityManager;
 import javax.persistence.EntityNotFoundException;
 import javax.persistence.PersistenceContext;
+import javax.persistence.Temporal;
+
 import org.springframework.transaction.annotation.Transactional;
+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
 import java.util.List;
 
 @Service
@@ -16,12 +28,25 @@ public class ProductService {
     @PersistenceContext
     private EntityManager em;
 
+    private byte[] PhotoToByte(String path) {
+        try {
+            BufferedImage bImage = ImageIO.read(new File(path));
+            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+            ImageIO.write(bImage, "png", byteArrayOutputStream );
+            byte [] data = byteArrayOutputStream.toByteArray();
+            return data;
+        }
+        catch (Exception e) {
+            return null;
+        }
+    }
+
     @Transactional
-    public Product addProduct(Integer price) {
+    public Product addProduct(Integer price, String path) {
         if (price == 0) {
             throw new IllegalArgumentException("Product price equal 0");
         }
-        final Product product = new Product(price);
+        final Product product = new Product(price, PhotoToByte(path));
         em.persist(product);
         return product;
     }
@@ -63,6 +88,16 @@ public class ProductService {
         em.createQuery("delete from Product").executeUpdate();
     }
 
+    @Transactional
+    public void addCategoryToProduct(Long id, Category category) {
+        final Product product = findProduct(id);
+        if (product == null) {
+            throw new IllegalArgumentException("Product with id " + id + " not found");
+        }
+        product.addCategory(category);
+        em.merge(product);
+    }
+
     @Transactional
     public void addManufacturersToProduct(Long id, Manufacturer manufacturer) {
         final Product product = findProduct(id);

src/test/java/ru/ulstu/is/sbapp/JpaProductTests.java

@@ -1,5 +1,6 @@
 package ru.ulstu.is.sbapp;
 
+import org.apache.commons.io.IOUtils;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
@@ -7,11 +8,14 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import ru.ulstu.is.sbapp.HardwareShop.models.Category;
+import ru.ulstu.is.sbapp.HardwareShop.models.Manufacturer;
+import ru.ulstu.is.sbapp.HardwareShop.services.ManufacturerService;
 import ru.ulstu.is.sbapp.HardwareShop.services.CategoryService;
 import ru.ulstu.is.sbapp.HardwareShop.models.Product;
 import ru.ulstu.is.sbapp.HardwareShop.services.ProductService;
 
 import javax.persistence.EntityNotFoundException;
+import java.io.InputStream;
 import java.util.List;
 
 @SpringBootTest
@@ -24,18 +28,32 @@ public class JpaProductTests {
     @Autowired
     private CategoryService categoryService;
 
+    @Autowired
+    private ManufacturerService manufacturerService;
+
+    String path = "C:\\Users\\user\\Desktop\\IP_Aleikin_PIbd-22(ver 2)\\IP_Aleikin_PIbd-22\\src\\test\\java\\ru\\ulstu\\is\\sbapp\\photo.png";
+
     @Test
     void testProductCreate() {
         productService.deleteAllProducts();
-        final Product product = productService.addProduct(15000);
+        final Product product = productService.addProduct(15000, path);
         log.info(product.toString());
         Assertions.assertNotNull(product.getId());
     }
 
+    @Test
+    void testProductHasPhoto()  {
+        productService.deleteAllProducts();
+        Product product = productService.addProduct(15000, path);
+        log.info(product.toString());
+        product = productService.findProduct(product.getId());
+        Assertions.assertNotEquals(product.getPhoto().length, 0);
+    }
+
     @Test
     void testProductRead() {
         productService.deleteAllProducts();
-        final Product product = productService.addProduct(15000);
+        final Product product = productService.addProduct(15000, path);
         log.info(product.toString());
         final Product findProduct = productService.findProduct(product.getId());
         log.info(findProduct.toString());
@@ -51,8 +69,8 @@ public class JpaProductTests {
     @Test
     void testProductReadAll() {
         productService.deleteAllProducts();
-        productService.addProduct(15000);
+        productService.addProduct(15000, path);
-        productService.addProduct(20000);
+        productService.addProduct(20000, path);
         final List<Product> productList = productService.findAllProducts();
         log.info(productList.toString());
         Assertions.assertEquals(productList.size(), 2);
@@ -69,22 +87,53 @@ public class JpaProductTests {
     @Test
     void testProductUpdate() {
         productService.deleteAllProducts();
-        final Product product = productService.addProduct(15000);
+        Product product = productService.addProduct(15000, path);
         log.info(product.toString());
         productService.updateProduct(product.getId(), 20000);
+        product = productService.findProduct(product.getId());
         log.info(product.toString());
         Assertions.assertEquals(product.getPrice(), 20000);
     }
 
-    @Test
+    /*@Test
     void testProductAddCategory() {
-        productService.deleteAllProducts();
+        Product product = productService.addProduct(15000);
-        final Product product = productService.addProduct(15000);
+        Category category = categoryService.addCategory("Электроника");
-        final Category category = categoryService.addCategory("Электроника");
+        productService.addCategoryToProduct(product.getId(), category);
-        product.addCategory(category);
+        product = productService.findProduct(product.getId());
+        category = categoryService.findCategory(category.getId());
         log.info(product.toString() + product.getCategory().getName());
+        log.info(category.getProductList().toString());
         Assertions.assertEquals(product.getCategory().getName(), "Электроника");
         productService.deleteAllProducts();
         categoryService.deleteAllCategories();
+    }*/
+
+    @Test
+    void testProductAddManufacturer() {
+        productService.deleteAllProducts();
+        Product product = productService.addProduct(15000, path);
+        Manufacturer manufacturer = manufacturerService.addManufacturer("Sony", "ул.Камышинская 107");
+        productService.addManufacturersToProduct(product.getId(), manufacturer);
+        product = productService.findProduct(product.getId());
+        log.info(product.toString() + product.getManufacturerList());
+        manufacturer = manufacturerService.findManufacturer(manufacturer.getId());
+        log.info(manufacturer.getProductList().toString());
+        Assertions.assertEquals(product.getManufacturerList().size(), 1);
+        manufacturerService.deleteAllManufacturers();
+    }
+
+    @Test
+    void testProductRemoveManufacturer() {
+        productService.deleteAllProducts();
+        Product product = productService.addProduct(15000, path);
+        final Manufacturer manufacturer = manufacturerService.addManufacturer("Sony", "ул.Камышинская 107");
+        productService.addManufacturersToProduct(product.getId(), manufacturer);
+        product = productService.findProduct(product.getId());
+        log.info(product.toString() + product.getManufacturerList());
+        productService.removeManufacturersToProduct(product.getId(), manufacturer);
+        product = productService.findProduct(product.getId());
+        Assertions.assertEquals(product.getManufacturerList().size(), 0);
+        manufacturerService.deleteAllManufacturers();
     }
 }