elasticsearch7使用指导

目录结构：

一、es概述

二、es安装/head插件安装/kibana安装

三、es核心概念

四、IK分词器

五、RestFul操作

六、CRUD(增删改查)

七、Springboot集成es

---------------------------------------分割线：正文--------------------------------------------------------

一、es概述

1、Doug Cutting

（1）创建了Lucene，（es与solr基于Lucene），开源且功能为一套信息检索工具包，jar包

（2）实现了NDFS（分布式文件存储系统）基于Google的GFS系统

（3）将NDFS与MapReduce升级改造，重新命名为Hadoop，hadoop之父

（4）基于Google的BigTable，实现了HBase

2、ElasticSearch概述

（1）概念：开源的分布式全文检索引擎

（2）优点：近乎实时存储、检索数据，扩展性好，可扩展上百台服务器，处理PB级别的数据，基于Lucene核心，通过RestFul API使全文搜索变得简单

（3）谁在使用：维基百科，搜狐新闻，Github等等

3、ES与solr的区别

（1）ES是RestFul API，而Solr是WebService API

（2）单纯已有的数据搜索，solr更快

（3）建立索引后的数据，Solr会产生io阻塞，es有明显的优势

（4）数据量增加，Solr的搜索效率会变低，es不受影响

二、es安装/head插件安装/kibana安装

声明：安装条件，JDK1.8+

1、es下载：

（1）es客户端：https://www.elastic.co/cn/downloads/elasticsearch

（2）ik分词器：https://github.com/medcl/elasticsearch-analysis-ik/releases

（3）kibana：https://www.elastic.co/cn/downloads/kibana

（4）head插件：https://github.com/mobz/elasticsearch-head/archive/master.zip

（5）chrome-es插件：https://github.com/mobz/elasticsearch-head/blob/master/crx/es-head.crx

2、es客户端windows安装

（1）安装步骤

elasticsearch-7.12.1-windows-x86_64.zip 解压即可。

（2）相关文件

bin：启动文件

config：配置文件

- - log4j2.properties：日志配置

- - elasticsearch.yml：es配置文件，默认9200端口

- - jvm.options：java虚拟机相关配置

lib：相关jar包

modules：功能模块

plugins：插件！如ik分词器等

logs：日志

（3）启动es

双击bin目录下elasticsearch.bat

启动成功，默认访问9200端口

浏览器访问：http://127.0.0.1:9200/ 返回相关配置信息

3、安装可视化界面：es head的插件

（1）解压缩：elasticsearch-head-master.zip

（2）安装node.js：https://nodejs.org/en/

cmd：node -v验证安装成功

（3）安装cnpm：

cmd安装淘宝镜像：npm install -g cnpm -registry=https://registry.npm.taobao.org

cnpm -v验证安装成功

（4）安装依赖：

进入D:\elasticsearch\elasticsearch-head-master目录；执行cnpm install；

（5）运行npm run start启动npm

（6）浏览器访问：http://localhost:9100

由于跨域无法访问：

（7）配置可跨域

配置conf下elasticsearch.yml新增配置

http.cors.enabled: true
http.cors.allow-origin: "*"

重启es服务，再次访问，集群连接正常

4、Kibana安装

（1）Kibana安装的版本要与es版本对应：

（2）启动测试：运行bin下kibana.bat并测试对应的接口

（3）开发工具 http://localhost:5601

（4）配置中文：config下kibana.yml，新增配置并重启服务

i18n.locale: "zh-CN"

三、es核心概念

1、elasticsearch是面向文档的(一切都是json)，与关系型数据库的对比

RelationDB -> Elasticsearch

数据库(database) -> 索引(indices)

表(tables) -> types(慢慢会被弃用)

行(rows) -> documents

字段(columns) -> fields

2、es物理设计：

elasticsearch在后台把每个索引划分成多个分片，每个分片在集群中的不同的服务间迁移。

默认的集群名就是elasticsearch

3、逻辑设计：

（1）文档：最小单位，即一条条数据

（2）类型：text、date等类型

（3）索引：数据库

4、es字段类型：

text：会被分词器解析

keyword：不会被分词器解析

四、IK分词器

1、分词：

把一段中文或别的划分为一个个关键字，我们在搜索时候会把自己的信息进行分词，默认的中文分词器将每个字看成一个词，我们需安装使用中文分词器ik来解决

2、安装ik分词器：

（1）下载：https://github.com/medcl/elasticsearch-analysis-ik/releases

（2）安装：elasticsearch-analysis-ik-7.12.1.zip放入elasticsearch-7.12.1\plugins目录下解压缩即可使用：

（3）重启观察ES，加载插件成功

[2021-05-12T23:00:05,420][INFO ][o.e.p.PluginsService     ] [DESKTOP-GIEVO4Q] loaded plugin [analysis-ik]
[2021-05-12T23:00:05,615][INFO ][o.e.e.NodeEnvironment    ] [DESKTOP-GIEVO4Q] using [1] data paths, mounts [[杞欢 (D:)]], net usable_space [179.3gb], net total_space [300.7gb], types [NTFS]

（4）验证通过：elasticsearch-plugin list

D:\elasticsearch\elasticsearch-7.12.1\bin>elasticsearch-plugin list
"warning: usage of JAVA_HOME is deprecated, use ES_JAVA_HOME"
Future versions of Elasticsearch will require Java 11; your Java version from [C:\Program Files\Java\jdk1.8.0_271\jre] does not meet this requirement. Consider switching to a distribution of Elasticsearch with a bundled JDK. If you are already using a distribution with a bundled JDK, ensure the JAVA_HOME environment variable is not set.
ik

3、使用kibana进行测试

启动kibana进入控制台进行测试

查看不同的分词器效果

（1）ik_smart

GET _analyze
{"analyzer": "ik_smart","text":"软件工程师"
}

查看运行结果：

{"tokens" : [{"token" : "软件","start_offset" : 0,"end_offset" : 2,"type" : "CN_WORD","position" : 0},{"token" : "工程师","start_offset" : 2,"end_offset" : 5,"type" : "CN_WORD","position" : 1}]
}

（2）ik_max_word

GET _analyze
{"analyzer": "ik_max_word","text":"软件工程师"
}

查看运行结果：

{"tokens" : [{"token" : "软件工程","start_offset" : 0,"end_offset" : 4,"type" : "CN_WORD","position" : 0},{"token" : "软件","start_offset" : 0,"end_offset" : 2,"type" : "CN_WORD","position" : 1},{"token" : "工程师","start_offset" : 2,"end_offset" : 5,"type" : "CN_WORD","position" : 2},{"token" : "工程","start_offset" : 2,"end_offset" : 4,"type" : "CN_WORD","position" : 3},{"token" : "师","start_offset" : 4,"end_offset" : 5,"type" : "CN_CHAR","position" : 4}]
}

4、将加入自己需要的词加到分词器的字典中

打开：elasticsearch-7.12.1\plugins\ik\config\IKAnalyzer.cfg.xml，配置<entry key="ext_dict"></entry>内添加字段映射

（1）配置前

GET _analyze
{"analyzer": "ik_max_word","text":"我的妈"
}

查看运行结果：

{"tokens" : [{"token" : "我","start_offset" : 0,"end_offset" : 1,"type" : "CN_CHAR","position" : 0},{"token" : "的","start_offset" : 1,"end_offset" : 2,"type" : "CN_CHAR","position" : 1},{"token" : "妈","start_offset" : 2,"end_offset" : 3,"type" : "CN_CHAR","position" : 2}]
}

（2）配置

<entry key="ext_dict">my.dic</entry>

同目录下新增my.dic -> 我的妈

（3）配置后重启es，控制台

{"tokens" : [{"token" : "我的妈","start_offset" : 0,"end_offset" : 3,"type" : "CN_WORD","position" : 0}]
}

查看运行结果：

{"tokens" : [{"token" : "我的妈","start_offset" : 0,"end_offset" : 3,"type" : "CN_WORD","position" : 0}]
}

五、RestFul索引基本操作

1、基本Rest命令:

PUT | localhost:9200/索引名称/类型名称/文档id | 创建文档（指定文档id）

POST | localhost:9200/索引名称/类型名称 | 创建文档（随机文档id）

POST | localhost:9200/索引名称/类型名称/文档id/_update | 修改文档

DELETE | localhost:9200/索引名称/类型名称/文档id | 删除文档

GET | localhost:9200/索引名称/类型名称/文档id | 查询文档通过文档id

POST | localhost:9200/索引名称/类型名称/文档id/_search | 查询所有文档

2、基础测试-创建索引

创建一个索引：PUT /索引名/~类型名~/文档id

PUT /test1/type1/1
{"name":"小白学es","age":3
}

查看响应，完成自动增加了索引，类似数据库

#! [types removal] Specifying types in document index requests is deprecated, use the typeless endpoints instead (/{index}/_doc/{id}, /{index}/_doc, or /{index}/_create/{id}).
{"_index" : "test1","_type" : "type1","_id" : "1","_version" : 1,"result" : "created","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 0,"_primary_term" : 1
}

3、基本数据类型

（1）字符串类型：text、keyword

（2）数值类型：long、integer、short、byte、double、half float、scaled、float

（3）日期类型：date

（4）te布尔类型：boolean

（5）二进制类型：binary

4、基础测试-创建并指定索引类型

PUT /test2
{"mappings":{"properties": {"name":{"type":"text"},"age":{"type":"long"},"birthday":{"type":"date"}}}
}

查看运行结果

{"acknowledged" : true,"shards_acknowledged" : true,"index" : "test2"
}

5、基础测试-创建/查看默认信息

（1）创建默认索引即文档

PUT /test3/_doc/1
{"name":"小白学es","age":18,"bithday":"1997-07-07"
}

查看运行结果

{"_index" : "test3","_type" : "_doc","_id" : "1","_version" : 1,"result" : "created","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 0,"_primary_term" : 1
}

插件查看

（2）查看索引，默认配置字段类型！

GET test3

运行结果：

{"test3" : {"aliases" : { },"mappings" : {"properties" : {"age" : {"type" : "long"},"bithday" : {"type" : "date"},"name" : {"type" : "text","fields" : {"keyword" : {"type" : "keyword","ignore_above" : 256}}}}},"settings" : {"index" : {"routing" : {"allocation" : {"include" : {"_tier_preference" : "data_content"}}},"number_of_shards" : "1","provided_name" : "test3","creation_date" : "1621064937104","number_of_replicas" : "1","uuid" : "f_-oPx65RwOk846CysvHRQ","version" : {"created" : "7120199"}}}}
}

6、扩展，查看集群/索引信息：

查看集群状态：

GET _cat/health

运行结果：

1621065190 07:53:10 elasticsearch yellow 1 1 9 9 0 0 2 0 - 81.8%

查看索引版本信息等：

GET _cat/indices?v

运行结果：

health status index                           uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   .kibana_7.12.1_001              aGaAAOZTSQyk_0ZU_lOXsg   1   0         54           23      4.2mb          4.2mb
yellow open   test2                           3f9X5bcAQXKciY56Il5nfA   1   1          0            0       208b           208b
yellow open   test3                           f_-oPx65RwOk846CysvHRQ   1   1          1            0      4.2kb          4.2kb
green  open   .apm-custom-link                ZyIwiavFSJSFTbh2cMd8Tg   1   0          0            0       208b           208b
green  open   .apm-agent-configuration        FD1qwkXwTTaCT6orvViPRg   1   0          0            0       208b           208b
green  open   .kibana_task_manager_7.12.1_001 MIUHf-m7S_e8XrjZMduTpA   1   0          9          272    286.7kb        286.7kb
green  open   .kibana-event-log-7.12.1-000001 qPBR8ea4Th24CnhfxKa3Sg   1   0          6            0     32.6kb         32.6kb
green  open   .tasks                          uwcYsws9QkqK1CXKQiNI0Q   1   0         10            0       50kb           50kb

7、基础测试-修改索引/文档

（1）直接覆盖：PUT

PUT /test3/_doc/1
{"name":"小白学es2","age":18,"bithday":"1997-07-07"
}

运行结果：version+1，result为updated

{"_index" : "test3","_type" : "_doc","_id" : "1","_version" : 2,"result" : "updated","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 1,"_primary_term" : 1
}

插件查看结果：

（2）update更新：POST

POST /test3/_doc/1/_update
{"doc":{"name":"小白学es3"}
}

运行结果：version+1，result为updated

#! [types removal] Specifying types in document update requests is deprecated, use the endpoint /{index}/_update/{id} instead.
{"_index" : "test3","_type" : "_doc","_id" : "1","_version" : 3,"result" : "updated","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 2,"_primary_term" : 1
}

插件查看结果：

8、基础测试-删除索引

（1）删除索引

DELETE test1

查看运行结果：

{"acknowledged" : true
}

（2）删除索引中文档

DELETE test3/_doc/1

查看运行结果：

{"_index" : "test3","_type" : "_doc","_id" : "1","_version" : 4,"result" : "deleted","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 3,"_primary_term" : 1
}

六、文档CRUD(增删改查)

1、添加数据：PUT

PUT /xiaobai/user/1
{"name":"小白","age":30,"desc":"一顿操作猛如虎，一看工资2500","tags":["技术宅","直男"]
}

查看运行结果：

#! [types removal] Specifying types in document index requests is deprecated, use the typeless endpoints instead (/{index}/_doc/{id}, /{index}/_doc, or /{index}/_create/{id}).
{"_index" : "xiaobai","_type" : "user","_id" : "1","_version" : 1,"result" : "created","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 0,"_primary_term" : 1
}

插件查看：

同样的方法添加一些数据：

2、获取数据：GET

GET xiaobai/user/1

查看运行结果：

#! [types removal] Specifying types in document get requests is deprecated, use the /{index}/_doc/{id} endpoint instead.
{"_index" : "xiaobai","_type" : "user","_id" : "1","_version" : 1,"_seq_no" : 0,"_primary_term" : 1,"found" : true,"_source" : {"name" : "小白","age" : "30","desc" : "一顿操作猛如虎，一看工资2500","tags" : ["技术宅","直男"]}
}

3、更新数据：PUT/POST

(1)PUT修改：全量字段更新

1号数据name：小白 -> 白神

PUT /xiaobai/user/1
{"name":"白神","age":"30","desc":"一顿操作猛如虎，一看工资2500","tags":["技术宅","直男"]
}

查看运行结果：

#! [types removal] Specifying types in document index requests is deprecated, use the typeless endpoints instead (/{index}/_doc/{id}, /{index}/_doc, or /{index}/_create/{id}).
{"_index" : "xiaobai","_type" : "user","_id" : "1","_version" : 2,"result" : "updated","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 5,"_primary_term" : 2
}

（2）POST _update：指定字段更新（推荐使用）

POST /xiaobai/user/1/_update
{"doc":{"name":"小白java"}
}

查看运行结果：

#! [types removal] Specifying types in document update requests is deprecated, use the endpoint /{index}/_update/{id} instead.
{"_index" : "xiaobai","_type" : "user","_id" : "1","_version" : 5,"result" : "updated","_shards" : {"total" : 2,"successful" : 1,"failed" : 0},"_seq_no" : 8,"_primary_term" : 2
}

4、简单的搜索：GET _searcher

text类型可以根据字段分词搜索，keyword关键词不会处理分词器

GET /xiaobai/user/_search?q=name:小白

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 32,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 3,"relation" : "eq"},"max_score" : 1.9252907,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "1","_score" : 1.9252907,"_source" : {"name" : "小白","age" : "30","desc" : "一顿操作猛如虎，一看工资2500","tags" : ["技术宅","直男"]}},{"_index" : "xiaobai","_type" : "user","_id" : "2","_score" : 0.53899646,"_source" : {"name" : "小黑","age" : "32","desc" : "腹黑男猪脚","tags" : ["旅游","渣男","游戏宅"]}},{"_index" : "xiaobai","_type" : "user","_id" : "5","_score" : 0.53899646,"_source" : {"name" : "小王","age" : "32","desc" : "社会性死亡","tags" : ["技术宅","暖男","中年危机"]}}]}
}

5、复杂操作搜索： _searcher match - 分词模糊匹配

{"query":{"match": {"name": "钻石王老五"}}
}

查看运行结果：

{"took": 2,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 4,"relation": "eq"},"max_score": 3.0311832,"hits": [{"_index": "xiaobai","_type": "user","_id": "6","_score": 3.0311832,"_source": {"name": "钻石王老五","age": "32","desc": "社会性死亡","tags": ["技术宅","暖男","中年危机"]}},{"_index": "xiaobai","_type": "user","_id": "4","_score": 1.9277248,"_source": {"name": "王五","age": "30","desc": "正宗青子","tags": ["青年","吃货","旅游","胖子"]}},{"_index": "xiaobai","_type": "user","_id": "7","_score": 1.6832076,"_source": {"name": "钻石李老四","age": "32","desc": "社会性死亡","tags": ["技术宅","暖男","中年危机"]}},{"_index": "xiaobai","_type": "user","_id": "5","_score": 1.2623059,"_source": {"name": "钻石123","age": "32","desc": "社会性死亡","tags": ["技术宅","暖男","中年危机"]}}]}
}

6、复杂操作搜索： _searcher match_phrase - 完整模糊匹配

GET /xiaobai/user/_search
{"query":{"match_phrase": {"name": "钻石王老五"}}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 0,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 1,"relation" : "eq"},"max_score" : 3.0311837,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "6","_score" : 3.0311837,"_source" : {"name" : "钻石王老五","age" : "32","desc" : "社会性死亡","tags" : ["技术宅","暖男","中年危机"]}}]}
}

7、复杂操作搜索： _searcher term - 完成精确匹配

GET xiaobai/user/_search
{"query":{"term": {"name.keyword": "钻石王老五"}}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 0,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 1,"relation" : "eq"},"max_score" : 1.2039728,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "3","_score" : 1.2039728,"_source" : {"name" : "钻石王老五","age" : "19","desc" : "社会性死亡","tags" : ["技术宅","暖男"]}}]}
}

8、复杂操作搜索： _searcher _source - 过滤展示结果

GET /xiaobai/user/_search
{"query":{"match_phrase": {"name": "钻石王老五"}},"_source":["name","desc"]
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 11,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 1,"relation" : "eq"},"max_score" : 3.0311837,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "6","_score" : 3.0311837,"_source" : {"name" : "钻石王老五","desc" : "社会性死亡"}}]}
}

9、复杂操作搜索： _searcher sort - 排序（desc/asc）

GET xiaobai/user/_search
{"query":{"match_phrase": {"name": "钻石"}},"sort":[{"age":{"order":"desc"}}]
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 1,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 3,"relation" : "eq"},"max_score" : null,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "2","_score" : null,"_source" : {"name" : "钻石李老四","age" : "32","desc" : "社会性死亡","tags" : ["技术宅","暖男","中年危机"]},"sort" : [32]},{"_index" : "xiaobai","_type" : "user","_id" : "4","_score" : null,"_source" : {"name" : "钻石123","age" : "28","desc" : "废物一个","tags" : ["技术宅"]},"sort" : [28]},{"_index" : "xiaobai","_type" : "user","_id" : "3","_score" : null,"_source" : {"name" : "钻石王老五","age" : "19","desc" : "社会性死亡","tags" : ["技术宅","暖男"]},"sort" : [19]}]}
}

10、复杂操作搜索： _searcher from size - 分页查询

GET xiaobai/user/_search
{"query":{"match_phrase": {"name": "钻石"}},"from":0,"size":2
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 0,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 3,"relation" : "eq"},"max_score" : 0.77691567,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "4","_score" : 0.77691567,"_source" : {"name" : "钻石123","age" : "28","desc" : "废物一个","tags" : ["技术宅"]}},{"_index" : "xiaobai","_type" : "user","_id" : "2","_score" : 0.62774795,"_source" : {"name" : "钻石李老四","age" : "32","desc" : "社会性死亡","tags" : ["技术宅","暖男","中年危机"]}}]}
}

11、复杂操作搜索： _searcher bool - 联合查询 -must - 所有条件均符合

GET xiaobai/user/_search
{"query":{"bool": {"must":[{"match":{"name":"钻石王老五"}},{"match":{"age":28}}]}}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 1,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 1,"relation" : "eq"},"max_score" : 1.7769157,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "4","_score" : 1.7769157,"_source" : {"name" : "钻石123","age" : "28","desc" : "废物一个","tags" : ["技术宅"]}}]}
}

12、复杂操作搜索：_searcher bool - 联合查询 - should - 满足任意一个条件

GET xiaobai/user/_search
{"query":{"bool": {"should":[{"match":{"name":"小白"}},{"match":{"age":28}}]}}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 1,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 2,"relation" : "eq"},"max_score" : 2.9761126,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "1","_score" : 2.9761126,"_source" : {"name" : "小白","age" : 30,"desc" : "一顿操作猛如虎，一看工资2500","tags" : ["技术宅","直男"]}},{"_index" : "xiaobai","_type" : "user","_id" : "4","_score" : 1.0,"_source" : {"name" : "钻石123","age" : "28","desc" : "废物一个","tags" : ["技术宅"]}}]}
}

13、复杂操作搜索：_searcher bool - 联合查询 - must_not - 不满足

GET xiaobai/user/_search
{"query":{"bool": {"must_not":[{"match":{"name":"小白"}},{"match":{"age":28}}]}}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 1,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 2,"relation" : "eq"},"max_score" : 0.0,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "2","_score" : 0.0,"_source" : {"name" : "钻石李老四","age" : "32","desc" : "社会性死亡","tags" : ["技术宅","暖男","中年危机"]}},{"_index" : "xiaobai","_type" : "user","_id" : "3","_score" : 0.0,"_source" : {"name" : "钻石王老五","age" : "19","desc" : "社会性死亡","tags" : ["技术宅","暖男"]}}]}
}

14、复杂操作搜索：_searcher bool - 联合查询 - filter - 过滤

gt(>) gte(>=) lt(<) lte(<=)

GET xiaobai/user/_search
{"query":{"bool": {"must":[{"match":{"name":"钻石"}}],"filter": {"range": {"age": {"gte": 10,"lte": 30}}}
}

}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 1,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 2,"relation" : "eq"},"max_score" : 0.77691567,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "4","_score" : 0.77691567,"_source" : {"name" : "钻石123","age" : "28","desc" : "废物一个","tags" : ["技术宅"]}},{"_index" : "xiaobai","_type" : "user","_id" : "3","_score" : 0.62774795,"_source" : {"name" : "钻石王老五","age" : "19","desc" : "社会性死亡","tags" : ["技术宅","暖男"]}}]}
}

15、复杂操作搜索：_searcher match - 匹配多个标签分词（空格隔开）

GET xiaobai/user/_search
{"query":{"match": {"tags":"男 技术宅"}}
}

查看运行结果：

#! [types removal] Specifying types in search requests is deprecated.
{"took" : 1,"timed_out" : false,"_shards" : {"total" : 1,"successful" : 1,"skipped" : 0,"failed" : 0},"hits" : {"total" : {"value" : 4,"relation" : "eq"},"max_score" : 0.6987428,"hits" : [{"_index" : "xiaobai","_type" : "user","_id" : "1","_score" : 0.6987428,"_source" : {"name" : "小白","age" : 30,"desc" : "一顿操作猛如虎，一看工资2500","tags" : ["技术宅","直男"]}},{"_index" : "xiaobai","_type" : "user","_id" : "3","_score" : 0.6987428,"_source" : {"name" : "钻石王老五","age" : "19","desc" : "社会性死亡","tags" : ["技术宅","暖男"]}},{"_index" : "xiaobai","_type" : "user","_id" : "2","_score" : 0.5337937,"_source" : {"name" : "钻石李老四","age" : "32","desc" : "社会性死亡","tags" : ["技术宅","暖男","中年危机"]}},{"_index" : "xiaobai","_type" : "user","_id" : "4","_score" : 0.38828292,