сущности готовы

build.gradle

@@ -15,6 +15,7 @@ repositories {
 dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
+	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
 

src/main/java/ru/ip/labworks/labworks/bookshop/controller/BookController.java

@@ -0,0 +1,4 @@
+package ru.ip.labworks.labworks.bookshop.controller;
+
+public class BookController {
+}

src/main/java/ru/ip/labworks/labworks/bookshop/controller/GenreController.java

@@ -0,0 +1,4 @@
+package ru.ip.labworks.labworks.bookshop.controller;
+
+public class GenreController {
+}

src/main/java/ru/ip/labworks/labworks/bookshop/model/Book.java

@@ -0,0 +1,54 @@
+package ru.ip.labworks.labworks.bookshop.model;
+
+import javax.persistence.*;
+import java.util.*;
+
+@Entity
+public class Book {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    private String name;
+    private Date release;
+    @ManyToMany
+    @JoinTable(name = "books_genres",
+        joinColumns = @JoinColumn(name = "book_fk"),
+        inverseJoinColumns = @JoinColumn(name = "genre_fk"))
+    private List<Genre> genres;
+
+    public Book(){}
+    public Book(String name,Date release){
+        this.name = name;
+        this.release = release;
+    }
+
+    public Long getId(){return id;}
+
+    public String getName(){return name;}
+    public void setName(String name){this.name = name;}
+
+    public Date getRelease(){return release;}
+    public void setRelease(Date release){this.release = release;}
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Book book = (Book) o;
+        return Objects.equals(id, book.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @Override
+    public String toString() {
+        return "Book{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                ", release='" + release + '\'' +
+                '}';
+    }
+}

src/main/java/ru/ip/labworks/labworks/bookshop/model/Genre.java

@@ -0,0 +1,45 @@
+package ru.ip.labworks.labworks.bookshop.model;
+
+import javax.persistence.*;
+import java.util.*;
+
+@Entity
+public class Genre {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    private String name;
+    @ManyToMany(mappedBy = "genres")
+    private List<Book> books;
+
+    public Genre(){}
+    public Genre(String name){
+        this.name = name;
+    }
+
+    public Long getId(){return id;}
+
+    public String getName(){return name;}
+    public void setName(String name){this.name = name;}
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Genre genre = (Genre) o;
+        return Objects.equals(id, genre.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+
+    @Override
+    public String toString() {
+        return "Genre{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                '}';
+    }
+}

src/main/java/ru/ip/labworks/labworks/bookshop/service/BookService.java

@@ -0,0 +1,4 @@
+package ru.ip.labworks.labworks.bookshop.service;
+
+public class BookService {
+}

src/main/java/ru/ip/labworks/labworks/bookshop/service/GenreService.java

@@ -0,0 +1,4 @@
+package ru.ip.labworks.labworks.bookshop.service;
+
+public class GenreService {
+}

src/main/java/ru/ip/labworks/labworks/calculator/controller/UserController.java

@@ -1,9 +1,9 @@
-package ru.ip.labworks.labworks.controller;
+package ru.ip.labworks.labworks.calculator.controller;
 
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
-import ru.ip.labworks.labworks.service.CalculatorService;
+import ru.ip.labworks.labworks.calculator.service.CalculatorService;
 
 @RestController
 public class UserController {

src/main/java/ru/ip/labworks/labworks/calculator/domain/ArrayCalculator.java

@@ -1,4 +1,4 @@
-package ru.ip.labworks.labworks.domain;
+package ru.ip.labworks.labworks.calculator.domain;
 
 import org.springframework.stereotype.Component;
 

src/main/java/ru/ip/labworks/labworks/calculator/domain/ITypeCalculator.java

@@ -1,4 +1,4 @@
-package ru.ip.labworks.labworks.domain;
+package ru.ip.labworks.labworks.calculator.domain;
 
 public interface ITypeCalculator<T> {
 

src/main/java/ru/ip/labworks/labworks/calculator/domain/IntCalculator.java

@@ -1,4 +1,4 @@
-package ru.ip.labworks.labworks.domain;
+package ru.ip.labworks.labworks.calculator.domain;
 
 import org.springframework.stereotype.Component;
 

src/main/java/ru/ip/labworks/labworks/calculator/domain/StringCalculator.java

@@ -1,4 +1,4 @@
-package ru.ip.labworks.labworks.domain;
+package ru.ip.labworks.labworks.calculator.domain;
 
 import org.springframework.stereotype.Component;
 

src/main/java/ru/ip/labworks/labworks/calculator/service/CalculatorService.java

@@ -1,8 +1,8 @@
-package ru.ip.labworks.labworks.service;
+package ru.ip.labworks.labworks.calculator.service;
 
 import org.springframework.context.ApplicationContext;
 import org.springframework.stereotype.Service;
-import ru.ip.labworks.labworks.domain.ITypeCalculator;
+import ru.ip.labworks.labworks.calculator.domain.ITypeCalculator;
 
 import java.util.ArrayList;
 import java.util.Arrays;

src/test/java/ru/ip/labworks/labworks/LabworksApplicationTests.java

@@ -5,7 +5,7 @@ import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
-import ru.ip.labworks.labworks.service.CalculatorService;
+import ru.ip.labworks.labworks.calculator.service.CalculatorService;
 
 @SpringBootTest
 class LabworksApplicationTests {