如何使Spring Data Elasticsearch与java.time.LocalDateTime for date协同工作

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
</dependency>
<dependency>
    <groupId>org.elasticsearch</groupId>
    <artifactId>elasticsearch</artifactId>
</dependency>

spring.data.elasticsearch.cluster-name=my-cluster
spring.data.elasticsearch.cluster-nodes=localhost:9300

import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;
import java.time.LocalDateTime;

@Document(indexName = "my_index", type = "my_type")
public class MyEntity {
    @Id
    private String id;
    private String name;
    private LocalDateTime dateTime;

    // getters and setters
}

import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

public interface MyEntityRepository extends ElasticsearchRepository<MyEntity, String> {
    // 可以在此定义自定义的查询方法
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.time.LocalDateTime;

@Service
public class MyService {
    @Autowired
    private MyEntityRepository repository;

    public void saveEntity() {
        MyEntity entity = new MyEntity();
        entity.setId("1");
        entity.setName("Example");
        entity.setDateTime(LocalDateTime.now());
        repository.save(entity);
    }

    public void searchEntities() {
        Iterable<MyEntity> entities = repository.findAll();
        for (MyEntity entity : entities) {
            System.out.println(entity.getName() + " - " + entity.getDateTime());
        }
    }
}