如何在 Spring Boot 中反序列化/序列化类型 Geometry？

Question

I have an entity with attributes of type MultiPolygon and Point; so I'm making a get request but this is returning a SerializationException.

I researched it and saw that I have to put some notes, create a configuration class and put the corresponding dependency in pom.xml. Follow as I did below:

Entity:

package com.zxventures.model;

@Entity
@Table(name = "pdv")
public class PDV implements Serializable {

private static final long serialVersionUID = 1L;

 @Column(name="coverage_area")
 @JsonSerialize(using = GeometrySerializer.class)
 @JsonDeserialize(contentUsing = GeometryDeserializer.class)
 private MultiPolygon coverageArea;

 @Column(name="address")
 @JsonSerialize(using = GeometrySerializer.class)
 @JsonDeserialize(contentUsing = GeometryDeserializer.class)
 private Point address;
}

Config class:

package com.zxventures.config;

@Configuration
public class JacksonConfig {

 @Bean
 public JtsModule jtsModule() {
  return new JtsModule();
 }
}

pom.xml:

<dependency>
<groupId>com.bedatadriven</groupId>
<artifactId>jackson-datatype-jts</artifactId>
<version>2.4</version>
</dependency>

The exception occurs:

could not deserialize; nested exception is 
org.hibernate.type.SerializationException: could not deserialize

I think I'm missing some code but I can not detect it; I think I put all the code I saw in similar questions.

Answer 1

我遇到了同样的问题，并将下面的行添加到 application.properties 中，然后它就可以工作了。

spring.jpa.database-platform=org.hibernate.spatial.dialect.postgis.PostgisDialect

Answer 2

You're using Spatial data types, so need to include below dependency to work

<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-spatial</artifactId>
</dependency>

And change dialect accordingly eg org.hibernate.spatial.dialect.mysql.MySQL56InnoDBSpatialDialect

See Spatial data types