ElasticSearch 实现分词全文检索 – ES、Kibana、IK安装

目录

ElasticSearch 实现分词全文检索 – 概述
ElasticSearch 实现分词全文检索 – ES、Kibana、IK安装
ElasticSearch 实现分词全文检索 – Restful基本操作 –待发布
ElasticSearch 实现分词全文检索 – Java SpringBoot ES 索引操作 –待发布
ElasticSearch 实现分词全文检索 – Java SpringBoot ES 文档操作 –待发布
ElasticSearch 实现分词全文检索 – 测试数据准备 –待发布
ElasticSearch 实现分词全文检索 – term、terms查询 –待发布
ElasticSearch 实现分词全文检索 – id、ids、prefix、fuzzy、wildcard、range、regexp 查询 –待发布
ElasticSearch 实现分词全文检索 – Scroll 深分页 –待发布
ElasticSearch 实现分词全文检索 – delete-by-query –待发布
ElasticSearch 实现分词全文检索 – 复合查询 –待发布
ElasticSearch 实现分词全文检索 – filter查询 –待发布
ElasticSearch 实现分词全文检索 – 高亮查询 –待发布
ElasticSearch 实现分词全文检索 – 聚合查询 cardinality –待发布
ElasticSearch 实现分词全文检索 – 经纬度查询 –待发布

安装 ElasticSearch

详见 Docker 安装 Elasticsearch、Kibana 7.9.3

或者 使用 docker compose 安装

[root@localhost elasticsearch]# pwd
/opt/elasticsearch
#安装
[root@localhost elasticsearch]# docker-compose up -d
#查看日志
[root@localhost elasticsearch]# docker-compose logs -f

docker-compose.yml

version:
services:
	elasticsearch:
		image: daocloud.io/library/elasticsearch:7.9.3
		restart: always
	container_name: elasticsearch
	ports:
		-9200:9200
	kibana:
		image: daocloud.io/library/kibana:7.9.3
		restart: always
		container name: kibana
	ports:
		- 5601:5601
	environment:
		- elasticsearch url=http://172.16.3.88:9200
	depends_on:
		- elasticsearch

安装 IK Analysis

ES 默认分词器，对汉字的分词不太友好

下载 ik 分词器插件

找到对应的 Elasticsearch 版本，这里用的：7.9.3，将地址复制到讯雷里下，直接下的话下不动
https://elasticsearch.cn/download/

方式一：在容器中下载安装

先把zip下载下来。放到任意一台服务器（直接github上下载多数会失败）

# 查看 ES 的容器ID
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE                 COMMAND                  CREATED         STATUS         PORTS                                                                                  NAMES
ad684997e228   elasticsearch:7.9.3   "/tini -- /usr/local…"   7 minutes ago   Up 7 minutes   0.0.0.0:9200->9200/tcp, :::9200->9200/tcp, 0.0.0.0:9300->9300/tcp, :::9300->9300/tcp   elasticsearch
# 进入 ES 容器
[root@localhost ~]# docker exec -it ad68 /bin/bash
# 通过命令进行 ElasticSearch 插件安装，不需要重启
[root@ad684997e228 elasticsearch]# elasticsearch-plugin install http://172.16.0.66/elasticsearch-analysis-ik-7.9.3.zip
-> Downloading http://172.16.0.66/elasticsearch-analysis-ik-7.9.3.zip
[=================================================] 100%?? 
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.net.SocketPermission * connect,resolve
See http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.

Continue with installation? [y/N]y
-> Installed analysis-ik
[root@ad684997e228 elasticsearch]#

方式二：将文件上传至容器，进行安装

将 ik 文件传至服务器

将 ik 复制到容器，并安装

# 查看 ES 的容器ID
[root@localhost ~]# docker ps -a
CONTAINER ID   IMAGE                 COMMAND                  CREATED         STATUS         PORTS                                                                                  NAMES
ad684997e228   elasticsearch:7.9.3   "/tini -- /usr/local…"   7 minutes ago   Up 7 minutes   0.0.0.0:9200->9200/tcp, :::9200->9200/tcp, 0.0.0.0:9300->9300/tcp, :::9300->9300/tcp   elasticsearch
# 将it 插件，复制到容器中
[root@localhost ~]# docker cp /opt/elasticsearch-analysis-ik-7.9.3.zip ad684997e228:/usr/share/elasticsearch
# 进入 ES 容器
[root@localhost ~]# docker exec -it ad68 /bin/bash
# 通过命令进行 ElasticSearch 插件安装，不需要重启
[root@ad684997e228 elasticsearch]# elasticsearch-plugin install file:/usr/share/elasticsearch/elasticsearch-analysis-ik-7.9.3.zip
-> Installing file:/usr/share/elasticsearch/elasticsearch-analysis-ik-7.9.3.zip
-> Downloading file:/usr/share/elasticsearch/elasticsearch-analysis-ik-7.9.3.zip
[=================================================] 100%?? 
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.net.SocketPermission * connect,resolve
See http://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.

Continue with installation? [y/N]y
-> Installed analysis-ik
[root@ad684997e228 elasticsearch]#

重启容器

docker restart xxx

如果不重启会报：failed to find global analyzer [ik_smart]

{
    "error": {
        "root_cause": [
            {
                "type": "illegal_argument_exception",
                "reason": "failed to find global analyzer [ik_smart]"
            }
        ],
        "type": "illegal_argument_exception",
        "reason": "failed to find global analyzer [ik_smart]"
    },
    "status": 400
}

接口测试（Postman)

http://172.16.3.88:9200/_analyze

{
    "analyzer":"ik_smart",
    "text":"心脏搭桥手术"
}

Kibana 测试

POST _analyze
{
    "analyzer":"ik_smart",
    "text":"心脏搭桥手术"
}