Lombok-实现equals和hashcode时使用@data发出警告

Question

我有扩展其他抽象类JPA实体。我想使用@data来避免编写setter和getter，但我的equals和hashcode方法存在。

我得到警告，但我认为我不应该：

server\entity\User.java:20: warning: Generating equals/hashCode implementation but without a call to superclass, even though this class does not extend java.lang.Object. If this is intentional, add '@EqualsAndHashCode(callSuper=false)' to your type.
@Data
^

@Data
@Entity
public class User extends AbstractAuditingEntity implements Serializable {

    ....

    @Override
    public boolean equals(Object o) {
       ...
    }

    @Override
    public int hashCode() {
       ...
    }
}

当我将@equalsandHashCode(callSuper=false)添加到@data中时，我得到：

server\entity\User.java:21: warning: Not generating equals and hashCode: A method with one of those names already exists. (Either both or none of these methods will be generated).
@EqualsAndHashCode(callSuper = false)

Answer 1

@data是@tostring、@equalsandhashcode、@getter、@setter和@requiredargsconstructor的快捷方式。既然您只想要@getter和@setter，为什么不直接使用它们（这将避免您的异常或警告消息），

@Entity
@Getter
@Setter
public class User extends AbstractAuditingEntity implements Serializable 
    ...

}