Lombok中@EqualsAndHashCode注解的使用及说明

/**
 * 汽车
 */
@Data
public class Car {
 
    /**
     * 颜色
     */
    private String color;
 
    /**
     * 续航
     */
    private Integer endurance;
 
}

/**
 * 比亚迪汽车
 */
@Data
public class BYD extends Car {
 
    /**
     * 价格
     */
    private Integer price;
 
}

public class EqualsAndHashCodeTest {
 
    public static void main(String[] args) {
        BYD bydBlue = new BYD();
        bydBlue.setPrice(150000);
        bydBlue.setColor("蓝色");
        bydBlue.setEndurance(1200);
 
        BYD bydWhite = new BYD();
        bydWhite.setPrice(150000);
        bydWhite.setColor("白色");
        bydWhite.setEndurance(1200);
 
        System.out.println("两个对象比较结果:" + bydBlue.equals(bydWhite));
    }
 
}

@EqualsAndHashCode(callSuper = true)

@EqualsAndHashCode(callSuper = false)

/**
 * 比亚迪汽车
 */
@Data
@EqualsAndHashCode(callSuper = true)
public class BYD extends Car {
 
    /**
     * 价格
     */
    private Integer price;
 
}

/**
 * 比亚迪汽车
 */
@Getter
@Setter
public class BYD extends Car {
 
    /**
     * 价格
     */
    private Integer price;
 
}