Spring data elastic search long to localdatetime 转换错误

Question

我有以下映射

@Document(indexName = "some-index")
@Data
public class ElasticDocument {

    @Id
    @Field(type = FieldType.Text)
    private String id;

    @Field(type = FieldType.Date, format = DateFormat.custom)
    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "uuuu-MM-dd'T'HH:mm:ss.SSS")
    private LocalDateTime issuedTimestamp;

}

以下存储库

@Repository
public interface DocumentRepository extends ElasticsearchRepository<ElasticDocument, String> {

}

但是来自 spring 数据弹性搜索 4.0.3.RELEASE 的以下查询会引发转换错误：

Page<ElasticDocument> elasticDocuments = documentRepository.findAll(PageRequest.of(0, 10));

[MappingElasticsearchConverter.java:290] [Type LocalDateTime of property ElasticDocument.issuedTimestamp is a TemporalAccessor class but has neither a @Field annotation defining the date type nor a registered converter for reading! It cannot be mapped from a complex object in Elasticsearch! [No converter found capable of converting from type [java.lang.Long] to type [java.time.LocalDateTime]] [org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.Long] to type [java.time.LocalDateTime]

我正在使用 elasticsearch 7.9.1 和 spring data elasticsearch 4.0。3.RELEASE 根据我的理解，从 spring data elasticsearch 4.x 我们不知道只要我在映射中添加字段注释就不需要创建自定义转换

Answer 1

您需要在 @Field 注释中为您的自定义格式添加模式

@Field(type = FieldType.Date, format = DateFormat.custom, pattern = "uuuu-MM-dd'T'HH:mm:ss.SSS")

Spring data elastic search long to localdatetime 转换错误

Spring data elastic search long to localdatetime conversion error

spring-data-elasticsearch