报错信息:
org.springframework.data.elasticsearch.ElasticsearchException: failed to map source [ {"id":5,"title":"荣耀V10","category":"手机","brand":"华为","price":2799.0,"images":"http://image.baidu.com/13123.jpg"}] to class Item
出现这种情况是没有加无参构造器:

本文详细解析了在使用Spring Data Elasticsearch进行数据映射时遇到的常见异常:未能将JSON源映射到指定类。深入探讨了异常原因,指出未添加无参数构造函数是导致此问题的关键因素。
报错信息:
org.springframework.data.elasticsearch.ElasticsearchException: failed to map source [ {"id":5,"title":"荣耀V10","category":"手机","brand":"华为","price":2799.0,"images":"http://image.baidu.com/13123.jpg"}] to class Item
出现这种情况是没有加无参构造器:

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