1 介绍

主要介绍索引请求的基础API操作，使用postman进行请求，接口请求的前缀地址统一为elasticsearch 部署IP地址+端口号（例如 http://192.168.51.4:9200 。

统一请求地址：

POST /search_demo/_doc/_search

2 prefix

prefix 根据前缀去查询，如下示例：

传递JSON数据

{"query": {"prefix": {"desc": "every"}}
}

请求结果

{"took": 11,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 1,"relation": "eq"},"max_score": 1.0,"hits": [{"_index": "search_demo","_type": "_doc","_id": "1010","_score": 1.0,"_source": {"id": 1010,"age": 30,"username": "cc","nickname": "cc","money": 100.8,"desc": " i cc you everyday","sex": 1,"birthday": "1988-07-14","face": "http://www.p2pi.cn/static/img/1010_face.png"}}]}
}

3 fuzzy

fuzzy 模糊搜索，并不是指的SQL的模糊搜索，而是用户在进行搜索的时候打字错误现象，搜索引擎会自动纠正，然后尝试匹配索引库中的数据。

官方地址：

https://www.elastic.co/guide/en/elasticsearch/guide/current/fuzzy-match-query.html

传递JSON数据

{"query": {"multi_match": {"fields": ["desc","nickname"],"query": "yuo everyady","fuzziness": "AUTO"}}
}

请求结果

{"took": 35,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 1,"relation": "eq"},"max_score": 4.5765147,"hits": [{"_index": "search_demo","_type": "_doc","_id": "1010","_score": 4.5765147,"_source": {"id": 1010,"age": 30,"username": "cc","nickname": "cc","money": 100.8,"desc": " i cc you everyday","sex": 1,"birthday": "1988-07-14","face": "http://www.p2pi.cn/static/img/1010_face.png"}}]}
}

自动纠正数据，还是可以查询到指定的信息的。

4 wildcard

占位符查询。

? ：1个字符
*： 1个或者多个字符

官网地址：

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html

传递JSON数据

{"query": {"wildcard": {"desc": "好*"}}
}

请求结果

{"took": 4,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 3,"relation": "eq"},"max_score": 1.0,"hits": [{"_index": "search_demo","_type": "_doc","_id": "1011","_score": 1.0,"_source": {"id": 1011,"age": 31,"username": "petter","nickname": "皮特","money": 180.8,"desc": "皮特的姓氏好像是彼得","sex": 1,"birthday": "1989-08-14","face": "http://www.p2pi.cn/static/img/1011_face.png"}},{"_index": "search_demo","_type": "_doc","_id": "1005","_score": 1.0,"_source": {"id": 1005,"age": 25,"username": "switch","nickname": "switch游戏机","money": 155.8,"desc": "好的游戏，才会有人购买，比如塞尔达","sex": 1,"birthday": "1989-03-14","face": "http://www.p2pi.cn/static/img/1005_face.png"}},{"_index": "search_demo","_type": "_doc","_id": "1004","_score": 1.0,"_source": {"id": 1004,"age": 22,"username": "redHat","nickname": "红帽子","money": 55.8,"desc": "好的系统必须拥有稳定的系统结构","sex": 0,"birthday": "1988-02-14","face": "http://www.p2pi.cn/static/img/1004_face.png"}}]}
}

5 相关信息

博文不易，辛苦各位猿友点个关注和赞，感谢

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