elasticsearch的基本使用教程

使用 postman 工具测试或者在代码中发送请求

CentOS7.4安装ElasticSearch7.3.0

一、创建索引 cn_kj288 可以多个建多个

       接口   PUT   Headers  Content-Type:application/json;charset=utf-8 

           http://127.0.0.1:9200/cn_kj288

       返回值

           {"acknowledged":true,"shards_acknowledged":true,"index":"cn_kj288"}

创建索引

二、查询 mapping

       接口  GET  Headers Content-Type:application/json;charset=utf-8

           http://127.0.0.1:9200/cn_kj288/_mapping?pretty

      返回值

          {"cn_kj288":{"mappings":{}}}

查询mapping

三、插入数据

        接口 POST  Headers Content-Type:application/json;charset=utf-8

           http://127.0.0.1:9200/cn_kj288/doc?

插入数据

        准备好的数据

        {"name":"张三","phone":"15874785200","sex":"男"}

        {"name":"张三老婆","phone":"13678456666","sex":"女"}

        {"name":"张三表哥","phone":"13678456666","sex":"男"}

        {"name":"张三表妹","phone":"17707465753","sex":"女"}

        {"name":"张三小姨子","phone":"19949363586","sex":"女"}

        {"name":"李四","phone":"13527526566","sex":"男"}

        {"name":"李四老婆","phone":"13522335566","sex":"女"}

        {"name":"李四小姨子","phone":"13522335566","sex":"女"}

        {"name":"王婆老公是张三","phone":"13522335566","sex":"女"}

        {"name":"王五","phone":"13543535566","sex":"男"}

        {"name":"王五老婆","phone":"13522335566","sex":"女"}

        {"name":"王五表哥","phone":"13522335566","sex":"男"}

        {"name":"隔壁老王表哥叫李四","phone":"13522335566","sex":"男"}

四、全文查询

        接口 POST Headers Content-Type:application/json;charset=utf-8

         http://127.0.0.1:9200/cn_kj288/doc/_search?pretty

全文查询

五、条件查询

        接口 POST Headers Content-Type:application/json;charset=utf-8

         http://127.0.0.1:9200/cn_kj288/_search?pretty

        1.返回指定字段

            {"_source": ["phone","sex"]}

指定返回字段查询

        2.短语精准匹配 

            {"query":{"match_phrase":{"name":"王五"}}}

        3.精准查询

            {"query":{"term":{"phone.keyword":"17707465753"}}}

        4.分词查询

            {"query":{"match":{"name":"婆五"}}}

        5._source  query 组合使用 分词查询返回指定字段

            {"query":{"match":{"name":"婆五"}},"_source": ["name","phone"]}

总结：以上是在cn_kj288 索引下的一些基本用法

如果想查询全部索引下的数据 将接口修改一下即可，去掉 /cn_kj288

http://127.0.0.1:9200/_search?pretty