错误：java.io.StreamCorruptedException：无效的流标头：30313031，

Question

在我的数据库中，当我尝试从Spring Boot中使用rest api获取数据时，我使用的是几何字段数据类型，但是当我运行该api错误时显示如下所示

Servlet.service() for servlet [dispatcherServlet] in context with path [/anju] threw exception [Request processing failed; nested exception is org.springframework.orm.jpa.JpaSystemException: could not deserialize; nested exception is org.hibernate.type.SerializationException: could not deserialize] with root cause

java.io.StreamCorruptedException：无效的流标头：30313031

我的实体就是这样

@Entity
@Table(name ="data")
public class LatlngEntity {
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        @Column(name = "id",  nullable = false)
        private Integer id;

        @Column(name = "geom", columnDefinition = "GEOMETRY") 
        private Point geom;

        @Column(name = "longitude", length = 50, nullable = false)
        private String longitude;

我该如何解决这个问题，好像是从几何实体反序列化问题，请帮助我，谢谢