案例准备工作

lombok依赖导入

<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.22</version>
</dependency>

实体类

Author类

@Data
@AllArgsConstructor
@NoArgsConstructor
@EqualsAndHashCode
public class Author {

    /**
     * id
     */
    private Long id;

    /**
     * 姓名
     */
    private String name;

    /**
     * 年龄
     */
    private int age;

    /**
     * 简介
     */
    private String intro;

    /**
     * 作品
     */
    private List<Book> books;

}

Book类

@Data
@AllArgsConstructor
@NoArgsConstructor
@EqualsAndHashCode
public class Book {

    /**
     * id
     */
    private Long id;

    /**
     * 书名
     */
    private String name;

    /**
     * 分类
     */
    private String category;

    /**
     * 评分
     */
    private Integer score;

    /**
     * 简介
     */
    private String intro;

}

数据准备

private static List<Author> getAuthors() {
    //数据初始化
    Author author = new Author(1L, "蒙多", 33, "一个从菜刀中明悟哲理的祖安人", null);
    Author author2 = new Author(2L, "亚拉索", 15, "狂风也追逐不上他的思考速度", null);
    Author author3 = new Author(3L, "易", 14, "是这个世界在限制他的思维",null);
    Author author4 = new Author(3L, "易", 14, "是这个世界在限制他的思维", null);
    //书籍列表
    List<Book> books1 = new ArrayList<>();
    List<Book> books2 = new ArrayList<>();
    List<Book> books3 = new ArrayList<>();
    books1.add(new Book(1L, "刀的两侧是光明与黑暗", "哲学，爱情", 88, "用一把刀划分了爱恨"));
    books1.add(new Book(2L, "一个人不能死在同一把刀下", "个人成长，爱情", 99, "讲述如何从失败中明悟真理"));
    books2.add(new Book(3L, "那风吹不到的地方", "哲学", 85, "带你用思维去领略世界的尽头"));
            books2.add(new Book(4L, "吹或不吹","爱情，个人传记", 56, "一个哲学家的恋爱观注定很难把他所在的时代理解"));
            books3.add(new Book(5L, "你的剑就是我的剑", "爱情", 56, "无法想象一个武者能对他的伴侣这么的宽容"));
            books3.add(new Book(6L, "风与剑", "个人传记", 100, "两个哲学家灵魂和肉体的碰撞会激起怎么样的火花呢？"));
                    books3.add(new Book(6L, "风与剑", "个人传记", 100, "两个哲学家灵魂和肉体的碰撞会激起怎么样的火花呢？"));
                    author.setBooks(books1);
    author2.setBooks(books2);
    author3.setBooks(books3);
    author4.setBooks(books3);

    return new ArrayList<>(Arrays.asList(author, author2, author3, author4));
}