如何使用Spring Data ElasticSearch为POJO定义ElasticSearch索引字段名称 [英] How to define ElasticSearch index field names for a POJO using Spring Data ElasticSearch

问题描述

我正在使用Spring Data ElasticSearch执行CRUD操作.默认情况下，当使用@Document注释的POJO被写入ElasticSearch索引时，索引字段名称与POJO的Java属性名称相同.如何将索引字段名称配置为不同?例如，对于此文档POJO:

I'm using Spring Data ElasticSearch to perform CRUD operations. By default, when a POJO annotated with @Document gets written to an ElasticSearch index, the index field names are the same as the POJO's Java property names. How can I configure the index field names to be different ? For example, with this Document POJO:

@Document(indexName = "areas", type = "area")
public class Area {

    @Id
    private String id;
    private String countyName;
    private String postOfficeName;
    private String stateName;

我该如何配置，以使ElasticSearch中的索引字段序列化为county_name而不是countyName?

how can I configure this so that the index field in ElasticSearch gets serialized as county_name instead of countyName ?

推荐答案

由于Spring-data-elasticsearch使用fastxml模块将POJO转换为json文档，因此您可以简单地使用

As Spring-data-elasticsearch uses fasterxml module to convert POJOs to json document, you could simply use,

@JsonProperty("country_name")
private String countryName

要在elasticsearch索引中获得其他字段名称.

To achieve a different field name in the elasticsearch index.

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