Spring Rest API未显示嵌套列表结果

Question

我的Spring Rest API应用程序存在问题。 我有3个这样的实体：

Geometry.java

  @Data
    @Entity
    @Table(name="sw_geometries")
    public class Geometry{

        @Id
        @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "Geometry_Generator")
        @SequenceGenerator(name="Geometry_Generator", sequenceName = "Geometry_Sequence")
        private long id;

        @OneToMany(mappedBy="geometry",
                   cascade= CascadeType.ALL, fetch=FetchType.LAZY)
        private List<Multi> multies = new ArrayList<Multi>();
        }

Multi.java

@Data
@Entity
@Table(name="sw_multis")
public class Multi{

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "Multi_Generator")
    @SequenceGenerator(name="Multi_Generator", sequenceName = "Multi_Sequence")
    private long id;

    @ManyToOne @JoinColumn(name="geometry_id")
    private Geometry geometry;
     @Column(name="geometry_id", updatable=false,insertable=false)
     private Long geometryId;

    @OneToMany(mappedBy="multi",
               cascade= CascadeType.ALL,fetch=FetchType.LAZY)
    private List<Location> locations = new ArrayList<Location>();
}

Location.java

import lombok.Data;

import javax.persistence.*;

    @Data
    @Entity
    @Table(name="sw_locations")
    public class Location {

        @Id
        @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "Location_Generator")
        @SequenceGenerator(name="Location_Generator", sequenceName = "Location_Sequence")
        private Long id;

        @ManyToOne@JoinColumn(name="multi_id")
        private Multi multi;
         @Column(name="multi_id", updatable=false,insertable=false)
            private Long multiId;
 Point.java <br>
        @Embedded
        private Point point;

        public boolean isEmpty() {
            boolean hasNoPoint = (point == null);
            boolean hasNoPointCoord = (point !=null & point.getLatitude() ==null && point.getLongitude() == null);
            return hasNoPoint || hasNoPointCoord;
        }

        @Override
        public String toString() {
            return "Location [point=" + point.toString() + "]";
        }

    }

Point.java

  @Data
    @Embeddable
    public class Point {

        @Column(name = "latitude")
        private Double latitude;

        @Column(name = "longitude")
        private Double longitude;

        @Column(name = "x")
        private Float x;

        @Column(name = "y")
        private Float y;

    }

当我使用sysout打印我的对象的结果时，一切似乎都没问题，我可以看到为每个多重打印的位置（Overrided toString）

但是当我使用rest客户端显示结果jsonI时，发现没有显示位置。

有什么想法吗？